2004 Chevy Silverado Heater Control Problems - Radio / Heater Controls not working.

When AC is on the passenger side works well but hot air comes out of the drivers. Rinnai tankless water heaters are known for their efficiency and reliability. If they are both hot, the heat in that vehicle is controlled by a blend door that regulates heated air flow. Two screws and a plug, after pulling the front bezel off around the dash. Shipping Options: Free Ground Shipping $ 187. Buy HVAC Blend Door Actuator - Compatible with Chevrolet & GMC 1994-2012 - Silverado, Tahoe & Sierra - Driver & Passenger Side Temperature Control Air Actuator - Replaces 89018365, 604-106, #1 Best Seller in Automotive Replacement Heater Blend Door Levers. Usually when I turn the fan control to the off posistion it will still blow air, but the temp control would work. I had a hard time getting the heater hoses off. An oxygen sensor has a heater element that allows it to quickly come up to 600°Fto produce accurate readings. 0l, crew cab, long box replaced w flatbed Chevy Silverado …. Recirculation cannot be used in floor, blend or defrost modes. Step 1 – Engine noise: drive belts. Do I need to Check Details Problems malibu …. nearest vitamin store near me The plastic fitting in the line on the right (looking at the two connections) gets old and brittle. Heating and AC Temperature and Air Delivery Mode Door Actuators May Fail. Then, shut the engine off again. Step 4: Pull the fuse out, wait 10 seconds, then reconnect it. 6L Diesel there is a heater hose bypass valve that opens when the heater is activated. I am having a problem with the heat/defrost controls on my 2004 Chevy Silverado Z71. wpix 11 live bronco sound system upgrade The LED lights were all but out. You need to park the vehicle with the radiator cap and reservoir is at the highest point and then idle the motor with the cap loose or off to let the air purge. There should be a vacuum line coming through the firewall that hooks to a round black plastic ball looking vacuum reservoir hooked to engine vacuum. suntreemcanic Discussion starter. GM stock is in the spotlight today as General Motors gets ready to unveil its Chevrolet Silverado E truck. One or more heater & AC (HVAC) air delivery and/or temperature mode door actuator may fail. Now I got my blower to work via my control module and put out heat without …. The Heater AC Control Unit switches terminal #85 to complete the circuit for the coil in the relay. 3L It developed a problem with the cab heater. I checked the fluid level, tried disconnecting both batteries, checked all fuses, no codes listed and I even hopped on. These issues can result in insufficient heat, inconsistent temperature, or no airflow at all. Get Fast, Free Shipping with …. The problem I am having is at the same time I lose power to the cluster and ac control panel. Jan 15, 2019 · Does your General Motors fan speed controller blow fast but not slow? You may need a new fan speed control resistor! Pete's 1st Gen 2004 Silverado fan speed. There are like 10 different speeds since it is the digital auto climate unit. used tractors for sale in maine Two buttons, located on the door, are used to control the heated seat. I moved the slide bar and noticed the. 3L V8 > Electrical-Switch & Relay > A/C and Heater Control …. My truck AC/Heating controls would work ok, but when I had the heater on high temp, direction to the floor, and full fan after about 6-7 minutes, the fresh. Chevy Silverado Forum (GMC Sierra) Member Introductions General Chevy & GM Tech Questions Chevy Suburban Forum (GMC Yukon XL) GM Powertrain. The AC works fine but the heater only blows cool air. 2022 Satin Steel 2WD Colorado LT V6 CCSB- Luxury & Convenience Pkgs, Black Leather Seating, LineEx Bedliner, ARE cap. Push down the release tab to remove the dashboard handle. So, at this point I am out of ideas. Mode and Recirculation Actuators (c) (2005) Fig. This is a Repair and Return Service for your existing Chevrolet Silverado 2003-2007 Climate Control Repair. I have checked the fuses and all the fuses are still good. Electrical faults and damaged gears are some of the reasons why the blend door actuator can fail. When stopped at a stop sign for instance, it blows cold air but the temperature gauge still reads 190-210. Some times when I hit a bump would go to hot. You can see the black plastic “fingers” that retain the connector to the heater core. Place a drain pan under the car to catch any remaining coolant. Price: Heavy Duty Heater Exc. Power, Ground, Serial Data and Blower Motor Control(c) (2005) Fig. Open the fuse box beneath the dashboard just beside the driver. 7 Wire Er Motor Resistor Harness. The most common problem is that the heat will not come on when you turn the knob to the “heat” position. What type of bulbs are used to light the heater control panel/ where are they located? - Chevrolet. If your coolant is low you may have a air pocket due to coolant loss. You have to remove the covers from the seat to slip the heating pads under them. Pressing the RECIRCULATION button will cancel the OUTSIDE AIR button. How to Diagnose and Replace a Failed Blower Motor. Make sure to take the seat controls off to before moving on, they are held on by a couple of screws. The worst complaints are heater/ac not working properly, blower fan stopped …. Products are engineered and tested to provide years of trouble free operation. These problems can be caused by a faulty transmission control module, worn clutch plates, or a damaged torque converter. I will be driving down the road with the a/c on and all the sudden the drivers side air will start blowi …. If not,you may have an air lock in the heater core. This item is a DIY bulb kit for the climate controls in 2003-2006 GM and Chevy trucks and SUVs. Electrical problem 1993 silverado 3/4 ton 6. Chevy Silverado Crushed Roof Lawsuit Moves Forward news. I have a 2004 Chevy Silverado 2500HD with a dual control (digital display) heater/ac module. tension rod dollar tree The blend door is in the plenum and you should be able to see the levers for the blend and mode selector by looking under the dash. Step 3 - Check the cruise control on/off switch. The fan speed and temperature settings work fine. No power to A/C & heater control head??? was working fine this morning when i went to work, when i came out to start my truck it wouldn't, notice I had a loose battery terminal. “Woe unto them that call evil good, and good evil; that put darkness for light, and light for darkness; that put bitter for sweet, and sweet for bitter!”. 2004 GMC 2500HD (Chipped, lifted on 35s) 2007 C6 ZO6 Built (Motor, tranny, & diff) 2002 Baja 342 Boss (TWO OBNOXIOUS) 2004 Big Dog Chopper (Custom) 1996 Suzuki RM 250 (Built) Mods to truck. Went out to start the truck and the heater controls were black wont come on no heat or ac. When I put it in recirculation mode, the "flapping" goes away. This is a very common problem that needs a very simple solution. After replacing the the part it remains the same. Install the mode actuator as an assembly with the actuator cam. This issue is well known with General Motors Trucks and SUVs, and is solved by testing and, if needed. 2007 Chevy Silverado dual climate control, even if passenger side is not on it blows cold air on passenger side and hot on driver side when in heat mode, also noticed cold air on driver side when A/C is on and hot air on passenger side this past summer It will fix your problem. Truck quit running and it was U0107. About 4 days later the doors opened. 4M views ; GM's Executives Just Quit and the Company is Going Under · New 21. After the vehicle is shut OFF if the engine coolant temperature at key-off is greater than 101°C (214°F) the low speed fans will run for a minimum of 60 seconds After 60 seconds, if the coolant temperature drops below 101°C (214°F) the fans will shut OFF. First I note that the temp guage barley makes 170. We use cookies to give you the best possible experience on our website. AC Blower Control Module Heater Blower Resistor 15-80567 89018778 4P1516 Compatible With Chevy Silverado, Trailblazer, Cadillac Escalade, GMC Envoy, Sierra, Buick Rainier 15-81773 HVAC Fan Blower Motor Resistor Kit with Harness Compatible with Chevy Silverado Tahoe Suburban Avalanche Trailblazer GMC Sierra …. Dec 18, 2010 · I have a 2004 Chevy Silverado 2500HD with a dual control (digital display) heater/ac module. brittany verner Jan 27, 2023 · When the temperature doesn’t work on your Chevy or gmc truck, this video shows you how to replace the temperature control blend door actuator for the driver. I have a heater problem with my truck. Pulled the radio, IPC/DIC draw is now 0. Then, turned off the ignition and turned it back on. I am a GM tech and do alot of HVAC actuators for random intermitant problems, usually takes care of the problem. Does your General Motors fan speed controller blow fast but not slow? You may need a new fan speed control resistor! Pete's 1st Gen 2004 Silverado fan speed. 04 2004 Chevrolet Silverado Climate AC Heater Control OEM (For: More than one vehicle) Opens in a …. The heat/ac fan has gradually stopped working on the 1-4 levels and now only operates on full blast #5. Buy a 2004 Chevrolet Silverado 2500 HD HVAC Temperature Control Panel at discount prices. Check the Wiring: If the fuses are all in working order, then you’ll need to check the wiring. It is operated by an electric motor/actuator. Here at Advance Auto Parts, we work with only top reliable Climate Control Module product and part brands so you can shop with. I have a 2004 GMC Sierra with dual climate control heating and AC. A/c and everything worked, then ac stopped. Aug 31, 2011 · 2008 Chevy Silverado W/T, A/C temp goes from cold to hot, no temp control, restart vehicule everything back to normal for awhile then will go to hot again. Fuse Block of underhood fuse box. The worst complaints are blower switch burned out, water fills floorboard. A broken switch is one of the reasons why the seat heater automatically turns on continuously even when you don’t have any action. The HVAC fuse can vary in location depending on your GMC’s year and model so be sure to consult your owner’s manual. CHEVROLET > 2006 > SILVERADO 1500 > 5. This GMC & Chevrolet climate control bulb. If the temperature is cold enough outside the heat will come on like its set to auto but nothing when its hot outside. but I can't tell what it's set at. The 2004 Chevrolet Silverado has 8 problems reported for temperature control stuck on hot. If a fuse is blown, it could be causing the gauges to malfunction. My ac will blow hot air from time to time on the driver's side only. You'd have to be on the good side with a dealer to. I have a 1978 Chevy Malibu with a leaking heater core. These conditions may be caused by a blower motor control module failure. "Chevy Silverado If you plan on buying a used Silverado, be very keen on the 2004 model. Using a small reciprocating saw or hacksaw blade, cut the top and bottom of the connector just until you hit pipe. Feb 19, 2012 · 10109 posts · Joined 2011. Blower Motor Caught On Fire While Driving 2. I noticed the right pipe from the heater core was pointing up. When the logic of the climate control HVAC system gets confused it can lock up, much like a laptop computer. 1inConnector Color: BlackWidth: 12. Following these steps should reset your Chevy Trailblazer’s climate controls automatically. It's located behind the heater control panel. or Recirculation; w/ Automatic Temperature Control (you can set a specific numeric temperature) 16163982, 52402588, 52402598, 52402612, 89018365 FOUR SEASONS 37537. 0L extended cab, cab&chassis flatbed, upgraded to 4wd. I checked the harness that is attached to the air director assembly (sure looks like it's the one connected to the control moduleall the . The temp control uses arrows to show where the temp is set. 2L Nav-Roof-R/Entertainment-NHT GBM/Ebony 15 CHEVY-HOLDEN SS SEDAN MANUAL 6. move climate controls to opposite positions and turn key on again with air on. So far I’ve checked fuses, relay, changed the compressor with new one, replaced the pressure switch at the compressor, done a Freon flush and refill. Dorman 901-200 Front Driver Side Seat Heater Switch Compatible with Select Chevrolet / GMC …. Check in the main radiator with the motor cool that the coolant is full as if the coolant is low there will be no heat in the heater. Silverado Heater and AC Actuator FIX. Make sure the Unit has not thrown any Codes 1. I need torque specs and sequence 04 Silverado 4. I have a 2004 Chevy Silverado, Ext Cab, 4x4, Z71, 5. If it is OK, then the heater core itself is most likely restricted. May require discarding of OE resistor mounting plate and mounting new resistor directly to case 2004 Chevrolet Silverado 2500 HD A/C Heater Blower Motor; 2004 Chevrolet Silverado 2500 HD Hose (Heater) 2004 …. If your blower is not working on speed 5 then the blow motor resistor (I think its called that) is burnt and you need a new one. maximum dino level ark Cables would bind and stick, causing all kinds of problems. The best part is, our Chevrolet Silverado 1500 Climate Control Module products start from as little as $234. Hot air all the time, vents or defrost, sometimes blows 10amp. There are 4 or 5 of these in the typical system. Refer to Cooling System Draining and Filling See: Cooling System > Removal and Replacement. I dug a little deeper and found that the mode (heat/defrost) had become. Don't use any functions on the control. The heater in your Chevy Silverado supplies the heat to the cabin. Problems with 2002 GMC Sierra 2500 HD Heater Controls. The control knob that controls my heat, and cooling in my truck stopped working. The heater hoses are both warm, …. The purple wire is smaller, maybe 14-16 gauge, while the red and black are 8-10 gauge going to the resistor. Install the mode actuator mounting screws to the HVAC module. 99Terminal Quantity: 5Terminal Gender: MaleHeight: 8. 2004 Chevrolet Colorado AC / Heater Problems. If you change batteries, yours goes dead, or your doing some maintenance that requires unhooking the positive then your dual climate control will need fixing. Some customers may comment that the blower motor is inoperative or continues to run after the vehicle has been shut off. One of the most common problems with Rez. Low coolant or air in the cooling system. When you replaced the controller, the system had to recalibrate for the new controller. Vocational, Technical or Tra my 2003 Silverado 4. Here is a more detailed list of the signs of a bad or failing coolant temperature sensor to look for: 1. A faulty relay can show up in the form of a hot seat, or a heated seat that seems to turn on randomly and cycle its way through the various heat settings. Test the switch the same way the brake switch is tested. More error details may be in the browser console. I have a 2004 chevy 2500hd 4x4 LS model 6. None of the buttons work and screen stays. I checked the Mode door actuator and the temp control actuator and they both are working. The experts at 1A Auto show you how to replace the A/C and heater …. My ac controller on my 2004 silverado blew hot out the drivers side with ac on. motorcycle accident on garden state parkway today 7 heater problem (Topic#273245) jefftracy3 Forum Newbie Posts: 2 Reg: 12-08-11. Dual Climate Control Only Works On One Side 8. The one thing that is the most common to left and right is the 20amp fuse in the underhood fuse panel, labelled "Front heated seats". 2004 silverado - hot air blows out of driver side vents, pass side stays cold. This current issue is a repeating one, which happens every 1. my heat works fine till truck hits 210 degrees then blows out cold air and the engine temp pegs out on the gauge and then goes down and up again engine coolant hot light comes on but no heat once the truck hits 210. kitco spot silver price Remove the HVAC/ECAS fuse for a minimum of 30 seconds. With the truck parked, remove the driver's kick panel, then, with a light, get your head into the drivers footwell, roughly where in front of the brake pedal, then look up and towards the passenger side of the truck. 0 V8 so I wondered if the place I bought it had it advertised wrong. How to Set Automatic Temperature Controls. Carmakers have used this basic design for 100 years. One of the most common and most reported problems with the Chevy Equinox 2006 model is that the heater blows out cold air. After a few minutes, then adjust the HVAC settings and see if it fixes it. i have a 99 sierra and the heater and ac work but only blow out of defrost vents. Take battery cable off for 5 mins, then put battery cable back on. Average repair cost is $660 at 74,300 miles. Some customers of 2002-04 model year Chevrolet Silverado; and GMC Sierra trucks, equipped with a 6. If that happens, it's another easy fix. Verify no voltage present at the "BRAKE" fuse in the fuse block. Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform Designed to deliver trouble-free, consistent performance Right for your vehicle and lifestyle. Put climate control system in AUTO mode then shut engine off. Now, look under the fuse box lid to find the fuse associated with the dash lights. Step 11: Reassemble the dashboard and glove box. coolant level is good and both heater hoses going in and out of the heater core are hot. With a faulty blower motor resistor, this problem is possible at any time. The only other thing would be your mixer door motor. It’s pretty easy to do; although, it should be noted that you’ll want to use a wire with a small enough diameter, so that the resistor’s female metal connector terminals aren’t damaged. Does any one have a tip or pointer on how to repair this? I. Some require extensive labor to. Dorman OE Solutions 36 Terminal Climate Control Module - Remanufactured - 599-003. Some of the most common symptoms of a bad thermostat are no heat, a spiked temp gauge, a blown head gasket, and more. 38 people reported this problem. the reostat is responsible for all 3 speeds. Some relays may not activate until the car is running and have a built in delay so you may need to start the engine and wait a few seconds to see if your repair was successful. if you see a drop in coolant add to the full hot mark. Average failure mileage is 52,600 miles. An indicator on the button will light up, flash three times and turn off when recirculation is selected in these modes. Do any of you have any suggestion of what might be the cause of this problem. The dealer removed the dash to fix the problem. 00 + Sold in packs of 1 x 1: $18. Make sure to mark the position of each bolt because the bolts do not always have the same lengths or position of threads. Chevy 2004 Silverado Heater problem, has dual controls and only one side produces heat? My 2004 Silverado with dual heater control on drivers side. Disconnected the vacuum lines that were in the glove box, reconnected after about 30 seconds. There's a good wire diagram that someone else made in a dieselplace forum. Sparky August 11, 2012 A/C, Avalanche, Blower, Chevrolet and GMC Trucks, Sierra, Silverado. The dual climate contol is acting wierd. And when it comes to your Chevy truck, there. Line up the A/C valve lever with the mode actuator cam. Try checking the fuse panel for burnt out fuses. there is no relay for the heater fan it's a 15 amp fuse and is on the accessories circuit. On systems with auto a/c controls the controls will default to 74 degrees F when the ignition is turned back on. Here are a few potential causes of 1988 Chevy Silverado heater control. Checked fuses by drivers side door and under hood. 5 Chevy silverado LS LLY 5" exhaust straight piped, afe cold air intake, efi tuned by Idaho rob. If your Chevy Silverado's heat only works when driving, there are five leading causes you should check. 1-24 of over 4,000 results for "2004 silverado heater control" Results. When the temperature doesn’t work on your Chevy or gmc truck, this video shows you how to replace the temperature control blend door …. It's pretty easy to do; although, it should be noted that you'll want to use a wire with a small enough diameter, so that the resistor's female metal connector terminals aren't damaged. tg transformation gifs I have a 2004 chevrolet silverado 1500, 4. Controls the speed of air delivered through the system vents. 2004-2006 GMC Sierra Models, Yukon Models. The most common reasons a 2007 Chevrolet Silverado 1500 heater isn't working are a broken heater blower motor, a problem with the thermostat, or a failed heater blower motor resistor. Nov 23, 2013 · SORRY FOR THE LOW LIGHT. The 2005 Chevrolet Silverado has 7 problems reported for climate control not working properly. Common symptoms of overheating include smoke coming from under the hood, a pegged temperature gauge, and (eventually) a blown head gasket. Instrument panel fuse box diagram and application. (200* Nickel-coated copper 2001 Chevy Silverado Heater Diagram is used for temperatures nearly 500* File. When the heater in your Chevy Silverado starts acting up, it can be a real pain. Lacking any diagrams to check voltages I just assumed the module went bad. To correct the problem I had to replace the heater blend door. Dorman OE Solutions 24, 12 Terminal Climate Control Module - 599-211XD. It's in the fuse panel above the glove box. This 2003 Chevrolet Silverado came in with the complaint that the blower did not work on any speed. ), so the temperature actuators generally fail first. controls the heat and cold in a 1999-2007 Chevrolet Silverado. The heater fan only works on high (5) 1989 chevy: silverado. 10 Silverado 1500 Crew LTZ 4x4 6. Don't know where to start with this. All three of my brake lights are working along with my turn. My battry was dead the other day and I put my 10 amp charger on it. black love making gif Hi There, I have 2 2004 Chevy Silverado crew cab 4x4 pick ups. Repetitive squeaking indicates the belt is not running true, and prolonged squealing means that the belt is overheating. In this case locate the climate control or …. The worst complaints are heater controls stopped working, heater malfunctiong, and ac line leaked. taurus raging judge 513 in stock Ignition off, pull the HVAC/ECAS fuse for 10 seconds, reinstall and start vehicle without touching any controls, wait 40 seconds for the control module to self calibrate. Modern trucks make use of blend doors, which are plastic flaps found inside of the vents that act as a gateway for hot or cold air to pass through. A lot of times it is the water pump leaking, but it could be anything. Apr 28, 2008 · My 04 chevy climate control system is not working right. Step 4: Start the Vehicle and Test the AC. IF it has filters, you will find two side by side. It sounds like you need a new heater switch. If the light comes on again, locate the short-to-voltage in the wiring harness with the relay removed. A technician will diagnose your Chevrolet Silverado 1500 heater using the symptoms you report as a starting point. Dec 25, 2017 · Blower motor burnt wiring harness. Watch this video to learn how to fix heating and cooling problems. Apr 6, 2013 · Heater/AC fan only works on high. Get answers and make your voice heard! 1992 Chevrolet Silverado AC / heater problems with 1. ACDelco 15-81638 GM Original Equipment Heating and Air Conditioning Blower Control Module 4. I have a 2004 Silverado crew cab with the same temperature control problems listed. krias shema full text On any other setting, the truck blows cold air on both sides. Find the HVAC / ECAS-10A fuse, and remove it for a minute. 2003-2004 Chevrolet Silverado 1500 Climate AC Heater Control OEM (For: 2004 Chevrolet Silverado 1500) Opens in a new window or tab. 2004 GMC Sierra 3500 C&C, added 4WD, 6. I dug a little deeper and found that the mode (heat/defrost) had …. To help prevent leaks, thoroughly clean the interior of any hoses that were removed as well as the component you are reattaching it to. 6M views · 7:37 · Go to channel · Chevy Silverado Climate Control Module - LED swap. A broken switch is one of the reasons why the seat heater automatically turns on continuously even when you don't have any action. spirit logistics louisville ky Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum. Your next step is to bypass the blower resistor using a simple jumper wire. However, a bad electrical connector or broken wire, or a defect in the climate control unit can also cause the blower motor to stop working. The drivers side has fails and defaulted to hot. good afternoon funny gif The truck has dual climate control slide bar to control AC temp on left side and right side. Send Private Topic View Profile. The 2015 Chevy Silverado 1500 is a reliable, powerful, and comfortable pickup truck that has been a top choice for drivers for years. Step 5: Monitor for Any Changes in Performance. Most people regard the heater core as a mini radiator. Check your heater vent control actuator. The whole install took less than 30 minutes. I replaced the blower motor resistor about 6 months ago when it failed, so all fan speeds work and ac is ice cold. The cluster is responsible for a lot of the functions on the truck. We are having trouble with the battery staying charged over a 24 hour time frame. 3 V8 engine was the first to feature GM’s AFM (Active Fuel Management), which automatically. I have a 2004 Chevy Silverado 1500 4X4. the heater and the ac are not working. The 2015 Chevy Silverado 1500 Texas Edition package is available on all LT and LTZ models and adds 20-inch wheels, a locking rear differential, a trailering package and Texas Editi. The problem: in affected units of the 2020 - 2021 Chevy Silverado 1500 and 2022 Chevy Silverado 1500 Limited pickup equipped with a manual HVAC system (RPO code CP4), the HVAC Control Module. The blower speed is fix at whatever speed you selected. to/c/134/G/ac-and-heater-controls This video shows you how to install a new Heater and A/C . Here is the way one owner repaired his Blend or Mode door damage. It's best to consult a professional to diagnose and fix the problem. This failure may occur when the vehicle is operated in ambient temperature conditions of-23 °C (-10 °F) or below. family dollar store job opportunities If you replace that your problem should go away. berkshire eagle archives obituaries My 04 chevy climate control system is not working right. 0, blows cold air out the driver side and hot out of the passenger …. Sold - 2008 Chevy K3500HD CC/LB LTZ with LMM Dmax Sold - 2004 Chevy K2500HD Ext. I bought a 04 Silverado, the manual dual climate was in there. Low coolant level or air in the cooling. On some 2003-2006 model year Chevrolet Avalanche, Suburban, Tahoe; GMC Yukon, Yukon XL; and 2003-2007 model year Chevrolet Silverado and GMC Sierra vehicles equipped with a manual heating, ventilation, and air conditioning (HVAC) system (CJ3) or heavy duty heater (C42), the interface between the electrical terminals of the relay resistor module. This article will show you how to draw this cool classic car in just five simple steps. Be sure that the wiring connector comes out under the seat. Refer to Instrument Panel Insulator Replacementin Instrument Panel, Gauge. Get in and start the engine, DON'T touch anything, let the heater control unit re-calibrate for at least 40 seconds, (by the clock), then. I picked up a new flow actuator at a local parts store for $140 and installed it myself. Sold - 2008 Chevy K3500HD CC/LB LTZ with LMM Dmax. Remove the floor air outlet duct extension (1) from the floor duct (2). The passenger side blows heat but the drivers side does not. To fix this problem, disconnect the battery for ten minutes, then connect it back on. I brought it to the dealer and they said it was the heated seat module and it needed to be reprogrammed. Failure of the glow plugs on these vehicles will cause illumination of the MIL. 6L diesel V8 (LB7) engine, and California emissions (YF5/NE1), or Clean Fuel Fleet emissions (VCL), may experience a condition where the engine glow plugs may fail. Remove the center console duct. One of the first signs of all coolant temperature sensor symptoms you will probably notice is that the check engine light will show up on your dashboard. This may be located on the centerstack, within the climate app on your infotainment screen or in both places.