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04 silverado service 4wd - Silverado 2014 2018 Silverado 1500 (New Model - 12th VIN Digit = 7)

I get the service 4wd message a lot especially after recently using the 4wd, but usually all I

Aug 17, 2014 · 2004 Silverado with push button 4WD. 5.3 K1500 Simultaneous failures: 1. blower motor not running, 2."Service 4WD" message on dash, 3.ABS light on, 4.red brake warning light on. Dropped blower motor o …If the ABS light remains on or comes on during driving, it indicates that the Anti-Lock portion of the brake system is not functioning and that service is required, however, the conventional brake system will continue to operate normally provided that the BRAKE warning light is not on. If the ABS light is on, the brake system should be serviced ...However, the day after I bought it, the "Service 4wd System" message popped up. I took the transfer case out, did the pump rub fix and installed a new (doorman because I couldn't find anything better) shift motor and encoder to put in there. Boom. Problem solved! No more "Service 4wd System" messages and everything worked perfectly!Buy 4WD Switch 4x4 Transfer Case Button - Replaces 15136039, 15164520, 19259313, 901-072 - Compatible with Chevy, GMC, Cadillac Vehicles - Silverado, Suburban, Tahoe, Yukon, Sierra - 2003-2007: Four Wheel Drive - Amazon.com FREE DELIVERY possible on eligible purchasesStared getting a "service 4wd" message on the dash today as well as the Parking Brake now setting itself when I put my 2021 5.3 RST in park.Mark, 07/16/2010. 2004 Chevrolet Silverado 1500 4dr Extended Cab Z71 4WD LB (5.3L 8cyl 4A) My truck is a daily driver in the city but also a back road wonder on the weekends. In the winter I use ...The video covers the most common cause of the service 4wd message in the 2003-2006 Silverado/Sierra trucks. Because it comes up so frequently, I decided not ...2018 Chevrolet Silverado 1500 Technical Service Bulletins. Your path: TSB Home >> 2018 >> 2018 Chevrolet >> 2018 Chevrolet Silverado 1500 The following TSB(s) may apply to your 2018 Chevrolet Silverado 1500. The source of the information below is the National Highway Transportation Safety Administration (NHTSA), which maintains TSBs for vehicles sold in the United States.Oct 10, 2012 · 1 post · Joined 2012. #1 · Oct 10, 2012. Hi guys, I have a 2005 z71 and until now (172,000 miles) it's been a great truck besides a transmission rebuild at 100k and now the service 4wd message is on and won't go off, and none of my buttons on the left side are lit up. It started just doing it every now and then And now it's constantly on.About 2004 Chevrolet Silverado 1500. $9,283. 2.5%. 30 Day Change. 4.7 AVG rating. Trent S says... May 6, 2021. Probably one of the most reliable trucks on the market! Specifically the 04’.08 silverado service 4 wheel drive just popped up. I plowed the last 2 days and toggled bewteen 2wd and 4wd with no issues. This morning I tried to switch to 4wd drive and realized it wasn't engaging. The "service 4 wheel drive" message popped up and the knob to change from 2wd - 4wd light was stuck on 4wheel drive (i turn it to 2wd drive and ...Used 2004 Chevrolet Silverado 1500 Extended Cab pricing starts at $5,111 for the Silverado 1500 Extended Cab Work Truck Pickup 4D 6 1/2 ft, which had a starting MSRP of $25,090 when new. The range ...I'm having some 4wd issues. I had been randomely getting the service 4wd message. If i needed 4wd i would just shut the truck off, restar, shift into 4wd and then it would be good to go. ... 04 CCSB Silverado - Leveled/33s/XD 20x9 -12/CM'd/Magnaflow exhaust 12 CCSB Sierra - Leveled/33s/RBP 20x9 +0/BTR S2V2 Cam/DOD&VVT Delete/MIT/Magnaflow/BB ...Dec 2, 2017 ... Comments50 · 2000 Chevy Silverado 4WD transfer case switch repair · 2003 GM Truck 2500HD 4x4 Not Working · 2005 GMC Yukon XL Transfer Case Enco...19 posts · Joined 2012. #1 · Jan 31, 2015. when i went to move one of our company trucks, a 2007 silverado 1500 lt, the dash was flashing service 4wd system. i hooked up the solus and got code c0306, while i was hooked up to it i looked at some of the 4wd data. when i change the selector switch it doesnt change the mode, 2wd LED stays lit and ...Eventually, the Service 4WD message began appearing on the dash. It is intermittent and completely random. Basically what happens is when I start my truck, I can shift between all of the 4x4 modes using the selector switch. After a short period of time, which can range from 15 or so seconds, to 30 minutes, the Service 4WD messages …Aug 29, 2007 · Here's a technical service bulletin that should explain the problem you are having: Bulletin No.: 02-04-21-006E Date: July 20, 2006 TECHNICAL Subject: Inoperative 4WD/AWD Lamps, Inoperative 4WD/AWD System, DTC C0550 Set, No Communication with TCCM (Reprogram Transfer Case Control Module) Models: 2004 Buick Rainier 2002-2004 Chevrolet ...My 2017 Silverado 1500 is stuck in 4wd. When I try to switch to 2WD, auto or 4low - Answered by a verified Chevy Mechanic. By chatting and providing personal info, ... My 2003 1500 HD silverado service 4wd message come for the first time today, ...Internet suggested to pull the TREC 30A fuse for 30 seconds. This was supposed to cause a possibly sleeping Transfer Case Control Module ( located above driver knees) to reawaken and was supposed to trigger the 4WD switch to light up. Result: Upon startup, I hear grinding noise while in Park. The Selector Switch did not light up.Used 2004 Chevrolet Silverado 1500 Extended Cab pricing starts at $5,153 for the Silverado 1500 Extended Cab Work Truck Pickup 4D 6 1/2 ft, which had a starting MSRP of $25,090 when new. The range ...The "service 4WD" message is a warning that a problem exists in your truck's transfer case or computer system. To separate the ECM from the transfer case, pay attention to the listed signs of a bad transfer case. If you see this warning on your instrument panel, immediately take your Silverado for diagnosis.service 4wd. Jump to Latest Follow ... 2016 Silverado Dbl Cab 5.3 1997 Silverado Ext Z71 - Intake, exhaust, 35 Nittos, leveled, hypertech. Save Share. Like. This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.Service 4WD - 4WD not working. Jump to Latest Follow ... 2004 Sierra 3500 dually, 6.0L extended cab, cab&chassis flatbed, upgraded to 4wd 2012 Silverado 3500 dually, 6.0l, crew cab, long box replaced w flatbed. Save Share. Like. Insert Quotes Quotes Post Reply.The service 4WD message or light appears when there’s a possible issue in the 4WD system that may require immediate attention. The most common culprit is an incomplete shift in gears. Other possible causes include electrical or sensor problems and a malfunctioning or overheated transfer case. Your vehicle will still move even with the service ...Experience: GM Mark of Excellence/ Service Guild Participant with 13 years experience, ASE Master Certified. Verified. Subject: Service 4WD Light On, 4WD Inoperative, Diagnostic Trouble Codes (DTC) C0300 and/or C0305 Set (Reprogram Transfer Case Control Module (TCCM)) #03-04-21-005 - (06/05/2003) Models: 2003 Chevrolet Avalanche, Silverado ...If you desire that a certified Mechanic inspect your vehicle and determine if any of the below TSB’s are applicable or, if not applicable, simply pinpoint the problem, please request a warning light diagnostic. GM Manufacturer Communication Number: 05-04-21-003 (TSB) SERVICE 4WD LIGHT ILLUMINATED, DIAGNOSTIC TROUBLE …Oct 18, 2020. #1. Okay, I am stuck here. Replaced most common failure items, but still get a C0374 code. All is good in 2WD. If I switch to 4WD Auto, when I corner next, "Service 4WD" lights with code C0374. If I turn sharply, it starts crazy crowhopping as if it was in 4WD and not A4WD. It then stays stuck in A4WD until I stop and restart and ...3 posts · Joined 2020. #1 · Feb 13, 2023. I have had the Service 4WD message on my 2009 Silverado LTZ for the last year on and off. I have had it into the shop several times and replaced the encoder motor, front actuator, cleaned up the ground wire, traced most of the wire and still no joy. The TCCM will throw a "C0379-01 Front axle system ...Step 1 – Remove the old VSS. The VSS is located on the front passenger's side of the transfer case. Pull back on the metal clip as well as the black wire harness connector, and then pull it straight out. Figure 2. Pull back on metal clip. Use a 19mm wrench to loosen the VSS. Figure 3. Loosen the VSS. Unscrew and remove the VSS by hand.A Chevrolet Silverado 2500HD will cost about $14,644 for maintenance and repairs during its first 10 years of service.. This is more than the industry average for popular heavy-duty models by $311. There is also a 43.34% chance that a Silverado 2500HD will require a major repair during that time. This is 21.84% worse than similar vehicles in this segment.If your transmission fluid is low, the transmission may not be able to shift correctly. Plus, you can see and smell the fluid to tell if it is burnt. Add fluid to the correct level if low. Figure 3. Check your transmission fluid dipstick. If fluid level is acceptable, move on to Step 5. If fluid is burnt proceed to Step 4.6 posts · Joined 2015. #1 · Sep 15, 2015. Truck will not move in 2wd, but it will in 4wd Auto. 2005 GMC Sierra 1500. 4WD Z71. 5.3 Liter. Was driving down the highway and the truck just felt like it was suddenly in neutral, reved up but not engaging wheels (transmission shifter still in "D"). It did not make any noise, or poping or clunking ...My guess is that if you fix the ABS pump circuit fault, you will solve the 4Auto problem. The 4auto system is probably getting bogus data from the ABS system and causing the 4wd to stay engaged. It probably thinks one wheel is slipping all the time. 2013 Silverado 1500 LT, Z71, 5.3L, 6L80e, 4X4, HD Towing pkg. If you can't fix it with a hammer ...I have a 2004 chevy silverado.. the service 4WD comes on in the service center on dash. None of the lights are on in the 4wd selector switch. Will not ingage 4wd either. ... 02-04-21-006E Date: July 20, 2006 TECHNICAL Subject: Inoperative 4WD/AWD Lamps, Inoperative 4WD/AWD System, DTC C0550 Set, ...so auto 4x4 engages the 4 wheel drive system the same way the actual 4x4 does. what it does not do is apply the clutch pack in the transfer case. the car drives with the front differential engaged and then ONLY activates the clutch pack (to 100%) in the transfer case when there is slip. 4x4, on the other hand, activates the same things except ...Used 2004 Chevrolet Silverado 2500 HD Crew Cab pricing starts at $7,682 for the Silverado 2500 HD Crew Cab Work Truck Pickup 4D 6 1/2 ft, which had a starting MSRP of $29,750 when new. The range ...Measuring the nut puts it a little over 35mm. A 35mm socket might fit depending on the tolerances of the socket itself. 36mm seems to be a better bet. Thanks for all the input. 04 Silverado LT 4WD CrewCab. 5.3L 4L60E Trans. If you think hiring a good aircraft mechanic is expensive, just wait until you hire a cheap one!4wd service message, I replaced the switch, cleaned the grounds on the frame under drivers side. Is there anyway to troubleshoot this problem? ... Silverado 1500 / 2000 / service 4wd message; Service 4wd message. 2000 Chevrolet Silverado 1500. Asked by pracer53 in Clermont, FL on . December 08, 2014.04 chev silverado, 4WD is inoperative sometimes, comes up with the "service 4wd" on the dash, but other days it works fine, i can shift into 4wd no problem, but then once i shift back to 2wd it comes ... My 2003 1500 HD silverado service 4wd message come for the first time today, ...hdbat3 Discussion starter. 7 posts · Joined 2008. #1 · Dec 8, 2008. :gasp:Hey all, I have a 2004 Silverado with approx. 93,000 miles. Today the service 4wd message came on and all of the 4wd lights were out. I shut it off and restarted it but no change. I pulled the 4wd fuse, it looked fine, replaced it, restarted the truck and it is back to ...Jan 1, 2013 · 112,000 MILES. The truck is stuck in 4wd and the service 4wd light is on. When you push the transfer case selector swicth it flashes and yoiu can hear a clicking noise behind the instrument cluster then you can hear a buzzing noise down at the transfer case and it repeats once more but it never shifts back into 2wd.I have 2004 Silverado with this same issue (No lights on selector and no service 4wd indicator). i checked to make sure fuses were not blown already. I followed ylab's advice and pulled the fuse under the hood for the tcm. i now have Service 4wd on the dash and the selector lights up when keyed on but it is still not working.Published date: 04/3/2017 Preliminary Information PIP5369B Service 4wd Message C0398 Models Brand: Model: Model Years: VIN: Engine: Transmissions: from to Chevrolet Silverado 1500 2014 - 2017 All All All All Chevrolet Suburban 2015 - 2017 All All All All Chevrolet Tahoe 2015 - 2017 All All All All GMC Sierra 1500 2014 - 2017 All All All All130 posts · Joined 2008. #1 · Sep 18, 2014. '07 Silverado throwing "service 4 wheel drive" message. 2 codes that come up are: B0392 and B0398. Replaced the Rotational Position Sensor with no change. Still getting message. No message, 4wd works. With message showing, doesn't work. It has the electronic 4wd. My mechanic is scratching his head.Jan 1, 2013 · 112,000 MILES. The truck is stuck in 4wd and the service 4wd light is on. When you push the transfer case selector swicth it flashes and yoiu can hear a clicking noise behind the instrument cluster then you can hear a buzzing noise down at the transfer case and it repeats once more but it never shifts back into 2wd.2008 Silverado Service 4wd Message. Hey Guys, I have a 2008 Silverado with about 170K kms on it and just yesterday the Service 4wd message popped up on my dash. I was in the drive through to grab a coffee when the message randomly showed up. The selector switch was in 2wd and has been for a few weeks. The selector switch is still …Vehicles with Service 4 Wheel Drive Message and service bulletin. 2009 Cadillac Escalade Hybrid. 2007–2009 Chevrolet Avalanche, Silverado, Silverado Hybrid, Suburban, Tahoe, Tahoe Hybrid. …2001 chevy silverado Service 4-wheel drive light came on, why. Answered in 9 minutes by: Chevy Mechanic: frank. The transfer case module has detected a fault and set a code that heeds to be read-the most common problem is the swutch on the dash and the sensor that is inside the encoder, frank, Chevrolet Technician. Category: Chevy.When a Service Tire Monitor System message appears on the dashboard of your Chevy Silverado, it indicates a problem with the Tire Pressure Monitoring System (TPMS). The TPMS is responsible for alerting you when the tire pressure in one or more of your tires drops below the recommended level. This drop in pressure can lead to various …I have 04 chevy Silverado z71 the other night I heard thumping noise under my feet then it stopped and today I tried to put it in 4wd but it won't go into 4wd. Service 4wd come on dash ... My 2006 Sierra 1500 also has the SERVICE 4WD message on the dash + my 4WD switch on the dash is very temperamental. It doesn't always want switch …The video covers the most common cause of the service 4wd message in the 2003-2006 Silverado/Sierra trucks. Because it comes up so frequently, I decided not ...2800km on the odo. 2015 Canyon SLT. Leather/Nav/Bose v6 4x4 Onyx Black. Spray in liner and soft tonneau. 2" level kit, 275/65/18 ko2 (minor rubbing at full lock) 20% tint on front, air dam removed, nfab nerf bars, GM skid plate, superskidz front skid plate. 6k hid kit from dd, led fogs.How to reset the 4x4 computer. Pull the 4x4 fuse and turn the key to the on postion ( DON'T START JUST THE ON POSITION) and back to the lock position 5 times slowly.Then replace the fuse and try your 4x4 push buttons. This will reset the 4x4 computer. This fixed my 2003 Avalanche when it would go into 4 LO and be stuck there.08 silverado service 4 wheel drive just popped up. I plowed the last 2 days and toggled bewteen 2wd and 4wd with no issues. This morning I tried to switch to 4wd drive and realized it wasn't engaging. The "service 4 wheel drive" message popped up and the knob to change from 2wd - 4wd light was stuck on 4wheel drive (i turn it to 2wd drive …A Chevrolet Silverado 1500 will cost about $10,003 for maintenance and repairs during its first 10 years of service.. This beats the industry average for popular pickup models by $318. There is also a 29.99% chance that a Silverado 1500 will require a major repair during that time. This is 8.49% worse than similar vehicles in this segment.Go to http://www.youtube.com/playlist?list=PLAF14558A66A160F9 for more of our DIY auto repair videos! The Message Center on the dash of my 2000 Chevy Suburba...See full list on motorhungry.com2013 Silverado - Service 4WD system. My 2013 Silverado is stuck in 2-high. When I rotate the knob on the dash to AUTO or 4H, nothing happens. I cannot hear the actuator on the front axle or the motor on the transfer case operating. Another forum had a writeup that said if the lights illuminated on the switch upon engine startup and reverted to ...Premium Audio. View More. 2021 Chevrolet Silverado 1500 RST. $39,998* 88K mi. $399 Shipping. CarMax Fremont, CA. Currently Viewing 22 of 467 Matches. Used Chevrolet Silverado 1500 with 4WD/AWD for Sale on carmax.com. Search used cars, research vehicle models, and compare cars, all online at carmax.com.1 post · Joined 2023. #8 · Jan 7, 2023. ribrown said: Hi guys and gals. My 2014 Silverado 1500 has the electronic 4wd shift knob. I recently switched it from the normal 2wd position to the 4wd high position while driving on soft grass. When I went to shift the truck back from 4wd to 2wd, the truck itself never disengaged out of 4wd.4 posts · Joined 2009. #1 · Dec 20, 2009. When driving my truck to day I noticed that the service 4wd message was on my DIC. I shut the truck off and restarted the truck. Upon restarting the truck I noticed that while starting it all the led lights on the 4wd push buttons came on never noticed that before but honestly never looked at the ...2007.5 Silverado: Banks intake & exhaust, Quadzilla stealth II. Save Share. Like. ... #02-04-21-006D - (Mar 24, 2004) Inoperative 4WD/AWD Lamps, Inoperative 4WD/AWD System (Reprogram Transfer ... they stick in 4wd when it the service 4wd light comes on. one last night was stuck in 4wd and has a clunk in the driver's side cv shaft area(not bad ...Here is a search that I did for you. I searched the terms "service 4wd" using the Google search function located in the top middle of each SS.com web page. Simply click the link below to some of the many threads related to the "SERVICE 4WD" message. ... 2013 Silverado 1500 LT, Z71, 5.3L, 6L80e, 4X4, HD Towing pkg If you can't fix it with a ...The Service 4WD light is most likely the 4WD switch on the dashboard. If the lights are acting funny then the switch needs to be replaced. ... Used Chevrolet Silverado 1500. 4,322 Great Deals out of 130,698 listings starting at $1,800. Used Lincoln Navigator. 203 Great Deals out of 8,519 listings starting at $1,300. Used Toyota Sequoia.9 posts · Joined 2017. #1 · Apr 9, 2017. OK. 2004 Silverado 1500. Problem started with not being able to shift from 2WD to 4Hi. Finally went, cannot shift out now. The dreaded "Service 4WD" light came on. Checked fuse, good. Checked codes and got the following: Bo790 Transfer Case neutral Indicator circuit and C0321 Transfer Case Lock Circuit.If you can get the assemby out, thats the hard part. Changing the encoder ring is really easy, just have to pay attention to gear placement. Here are a few notes from my experience with the procedure. Took me about 1 1/2 hrs. Took the 4 bolts out of the u-joint on the front of the front driveshaft and seperated it.2008 Silverado Service 4wd Message. Hey Guys, I have a 2008 Silverado with about 170K kms on it and just yesterday the Service 4wd message popped up on my dash. I was in the drive through to grab a coffee when the message randomly showed up. The selector switch was in 2wd and has been for a few weeks. The selector switch is still …04 Silverado. I have an issue that the ABS activates at low speeds which is almost certainly due to an issue with the wheel speed sensor. Is this something that could also affect my 4wd? It will go in and out a few times before saying "service 4WD". Always goes away after restarting the truckI have an 04' chevy silverado, and the service 4wd indicator comes on in the cluster panel. when i crank my truck it - Answered by a verified Chevy Mechanic. ... Hello, I have a 2003 Suburban 1500 4wd, and am getting the Service 4WD message on the dash. I have changed the Transfer Case Motor, ...cooltc2004 Discussion starter. 199 posts · Joined 2013. #1 · May 10, 2015. I have a 2013 Silverado and I just had an instance of the Service 4WD / Stabilitrak / Traction Control showing up. I parked in my driveway, went inside for about 30 minutes, came out and tried to start the truck and got nothing. The check engine light was on, and the ...2004 chevy service 4wd. Answered in 7 minutes by: Chevy Mechanic: Jerry Newton. There are scan tool diagnostics for the 4WD system. It's impossible to diagnose 4WD faults without knowing the fault codes that are present, and they can only be retrieved with a high quality scan tool. Common failures on this model and year are the 4WD switch on ...Shop 2004 Chevrolet Silverado 1500 vehicles for sale at Cars.com. Research, compare, and save listings, or contact sellers directly from 53 2004 Silverado 1500 models nationwide.The Service 4WD light is most likely the 4WD switch on the dashboard. If the lights are acting funny then the switch needs to be replaced. ... Used Chevrolet Silverado 1500. 4,322 Great Deals out of 130,698 listings starting at $1,800. Used Lincoln Navigator. 203 Great Deals out of 8,519 listings starting at $1,300. Used Toyota Sequoia.Angels Steak House: Great food and service - See 17 traveler reviews, candid photos, and great deals for Medellin, Colombia, at Tripadvisor.4 posts · Joined 2009. #1 · Dec 20, 2009. When driving my truck to day I noticed that the service 4wd message was on my DIC. I shut the truck off and restarted the truck. Upon restarting the truck I noticed that while starting it all the led lights on the 4wd push buttons came on never noticed that before but honestly never looked at the ...04 lb7 78,000 miles MBRP 4" exhaust Edge juice with attitude. Save Share. Like. ... It is also usually accompanied by a service 4wd light. If I remember right from the codes I cleared a few months back it is either a position sensor or the actual shift motor itself. ... Chevy Silverado EV Forum 2K+ members. Home. Forums. Chevy / GMC Duramax 01 ...The estimated cost to maintain and repair a Chevrolet Silverado 2500 HD ranges from $105 to $8417, with an average of $364. Car. Service. Estimate. Shop/Dealer Price. 2018 Chevrolet Silverado 2500 HD V8-6.0L. Service type. Headlight Bulb - Driver Side Low Beam Replacement. Estimate.Dec 21, 2015 ... I have a 2007.5 Silverado 2500hd diesel 6.6, My 4wd would not work one night so I tried it the next day and it got stuck in 4 low.However, the day after I bought it, the "Service 4wd System" message popped up. I took the transfer case out, did the pump rub fix and installed a new (doorman because I couldn't find anything better) shift motor and encoder to put in there. Boom. Problem solved! No more "Service 4wd System" messages and everything worked perfectly!Only issue is the service 4 wheel drive light in dic.& 4 wheel drive does not work. My truck is a LMM. They used a GMLAN low speed and high speed bus. You newer one should be a CAN bus. Next time you see the message check to see if you can change settings on your climate control, turn signals work and door lock and window open.Okay guys, 2004 Silverado, 4.8 V8,5 speed. 125,000 odd miles. Front end was just rebuilt, front pads replaced as part of the job. ... The "service" message should also include an OBD2 code, reading the code will point you in the right direction. A cheapy reader may not read the code. Ray '09 Avalanche LTZ - 5.3 - 4x4 - Black ...Transfer Case Position Sensor. While the transfer case switch is the most probable cause of the service 4WD issue o, 5. Turn 4WD selector switch back to 2WD 6. Start up truck and see if 4WD switching capabilities are restored. I have f, Silverado 1500 RST Crew Cab Short Bed 4WD. $42,855. Excelle, 2800km on the odo. 2015 Canyon SLT. Leather/Nav/Bose v6 4x4 Onyx Black. Spray in liner and soft to, 8674 posts · Joined 2015. #5 · Jan 28, 2022. thanks for coming back. That is known as "GM Pum, TaterHawk. 2 posts · Joined 2020. #11 · Dec 14, 2020. Hey man, I hav, Service 4wd and whining noise. Jump to Latest Follow ... 04 Silverado Duramax, Vehicles that have four wheel drive systems tend t, 8674 posts · Joined 2015. #5 · Jan 28, 2022. thanks for , Regular service and check-ups are essential. What follows , After reconnecting the TCCM harness and the battery, you can s, May 5, 2018 · 5. ***Changed Transfer Case Control Module in, Oct 18, 2020. #1. Okay, I am stuck here. Replaced mo, Silverado 2014 2018 Silverado 1500 (New Model - 12th VIN Digit, 04 Silverado 4WD noise and Service 4WD light. Okay, so I&#x, 04 Silverado Duramax 07 Silverado Duramax 03 Sierra , 9 posts · Joined 2017. #1 · Apr 9, 2017. OK. 2004 S, Jun 23, 2012 · I spoke with a few mechanics and all agreed that .