GMC Cars & Trucks - Page 8 - Popular Questions, Answers, Tips & Manuals

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I have a 99 Chevy Silverado 1500 5.3 can I use a transmission out of a 99 gmc 2500 5.3

C1500 or K1500 ,2wd or 4wd/ THE TRANSMISSION MUST BE EXACTLY THE SAME OR PCM MUST BE REPROGRAMMED 4l80 IS CLASS SERIES OF BOX. NOT EXACT, EVER. MANY VERSIONS ARE MADE OF THAT SERIES. FOR ALL GM VEH.. even special gear ratios and 4wd /2wd differences only ford can answer that and to get any valid answer the alien box 2500 transmission tag must be told to ford. or go to a tranny shop ask them for a look up tag or photo the tag in hand. or get the RPO list for both trucks see Mxx numbers for tranny. the 2500 uses at least 6 versions. of box. tranny codes IDs. M30 or MT1 and 4 engines you do know each engine opted day one the gear ratios can be different. right? the shop manual on the box shows huge table of variant for series 4L80 the codes are called by GM model codes. (sub codes those are)_ the OSHD I THINK IS THAT CODE.(random gm 4L60/80 codehere) I say read your C1500 RPO list see if it is M30 box and buy , that box and model code matched. know this too, GM will not have PCM programming for boxed not sold day1 new that C1500/ but do ask them. vast transmission exist for just 1 series. 4l60-undefined-undefined-0.jpg
3/4/2023 10:15:56 PM • GMC Cars &... • 101 views • 0 helpful votes
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Were is the fuse for the security system for a 98 gmc sierra?

The fuse for the security system in a 1998 GMC Sierra is located in the fuse box under the dashboard on the driver's side. The exact location of the fuse may vary depending on the specific model and trim level of the vehicle. You can refer to the owner's manual for your GMC Sierra or consult a mechanic or automotive electrician for assistance in locating the specific fuse for your security system. It's important to note that tampering with the fuse box or electrical system of your vehicle can be dangerous and should be done with caution or by a professional.
3/26/2023 4:08:13 AM • GMC Cars &... • 59 views • 0 helpful votes
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2007 GMC YUKON 5.3. LOCATION of EGR VALVE please?

Question edited for clarity. Did you know typing in CAPS is considered shouting, plus it is harder to read. Question moved to model category. The EGR valve is located in the engine compartment (underneath the hood). Most engines require exhaust gas recirculation to meet emissions standards.

GMC Yukon XL 1500 Exhaust Gas Recirculation/EGR Valve ...

3/3/2023 7:03:30 PM • 2007 GMC Yukon • 98 views • 0 helpful votes
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How can I reset these mirrors to not jiggle all the time ?

4/3/2023 10:58:17 PM • GMC Cars &... • 44 views • 0 helpful votes
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Oil pan removal on 2006 GMC W3500 cab over.

Sounds like you need to remove the motor mount bolts and jack the engine up a tad. Place a jack under the crank pulley
4/16/2023 2:21:35 PM • GMC Cars &... • 33 views • 2 helpful votes
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2010 GMC Sierra. What are the colors on my factory plug please.

There are 6 varieties of Sierra and hundreds on factory connector plugs on each one. Here are a few https://www.google.com/search?q=2010+GMC+Sierra.+What+are+the+colors+on+my+factory+plug and videos of items with plugs and colors ..
4/23/2023 2:10:13 AM • 2010 GMC Sierra... • 29 views • 0 helpful votes
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1992 GMC Topkick no injector pulse

The ignition module is what supplies the signal to fire the injectors. That would be my first thing to check, especially if it wasn't a quality part. Just because it's new, doesn't mean it's good...
3/5/2023 6:49:28 PM • GMC Cars &... • 86 views • 0 helpful votes
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2013 GMC Yukon. My drivers side 2nd Row Captains chairs seat is stuck in my Yukon.

Question edited for clarity. Question moved from Spanish car company Seat (pronounced See-At). It seems to be a known issue https://www.google.com/search?q=2013+GMC+Yukon.+My+drivers+side+2nd+Row+Captains+chairs+seat+is+stuck ..
2/18/2023 9:05:01 PM • 2013 GMC Yukon • 114 views • 0 helpful votes
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How do I reset the computer on a2002 GMC envoy

what computer of many? to get them all pull battery neg lug for 15min make sure radio license codes are learn first. he radio manual (glove box) tells how.
3/17/2023 1:44:45 PM • GMC Cars &... • 58 views • 0 helpful votes
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What fuse would disarm my alarm on a 2003 GMC sierra

None of them! That's not the way the alarm and anti-theft immobilizer works. This explains. https://www.fixya.com/cars/r29887709-gm_passlock_security_system ..
1/30/2023 5:18:46 PM • GMC Cars &... • 182 views • 0 helpful votes
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1995 GMC 5.7l. C-1500 SLE. Suburban. Firing order for it please?

Question edited for clarity. Question moved to model category. 3: 1988-95 5.0L, 5.7L and 7.4L Engines Firing Order: 1-8-4-3-6-5-7-2 Distributor Rotation: Clockwise.

GM Full-Size Trucks 1988-1998 Firing Orders Repair Guide

Diagrams https://www.google.com/search?q=1995+GMC+5.7l.+C1500+SLE.+Suburban.+Firing+order ..
2/3/2023 4:33:04 PM • 1995 GMC... • 157 views • 0 helpful votes
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2003 GMC envoy I can't open the rear glass on the hatchback

4/17/2023 2:06:18 PM • GMC Cars &... • 26 views • 0 helpful votes
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I have a 2007 GMC envoy transmission yes, no gears from the selector

limited info generic answer check fluid level and condition [fluid and filter change] --check 4wd --module failure --stuck in neutral --trans cable ----
3/25/2023 9:38:36 PM • GMC Cars &... • 40 views • 0 helpful votes
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My 1995 GMC JIMMY , i dropped tank ,cleaned it out, replaced fuel pump & sending unit. when i try to start the car it wont turn over, it tries to but acts as if its strugling

I would start with a new battery once the cells in a battery go bad they won't hold charge so when you jump them and try to start them they aren't holding in voltage in the battery which doesn't allow the car to start. A starter pulls a lot of amp. If you don't replace the battery stalest try charging it on a low amp battery charger
3/13/2023 11:49:39 PM • GMC Cars &... • 51 views • 0 helpful votes
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What degree of angle do front car doors open

If you think your car door is opening incorrectly, open your door and grab both side of the door by the door handle and try to lift it up and down. If you can move the door a lot without moving the car, you issue is most likely door hinge pins and bushings
3/14/2023 2:58:55 AM • GMC Cars &... • 50 views • 0 helpful votes
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2008 gmc sierra oil leak on manifold and over engine the valve was changed. Cannot find where the the leak maybe coming from.

It can be difficult to determine the source of an oil leak, especially if the valve cover has already been replaced. Here are some common causes of oil leaks in vehicles:
  1. Engine gasket leaks: Engine gaskets can leak oil, causing oil to seep out onto the engine and surrounding components.
  2. Engine oil seals: Engine oil seals can become worn or damaged, causing oil to leak from the engine.
  3. Engine oil cooler: Engine oil coolers can develop leaks, causing oil to leak out of the engine and onto the manifold.
  4. Engine oil pan: Engine oil pans can develop leaks, causing oil to leak out of the engine and onto the ground.
  5. Engine oil filter: Engine oil filters can develop leaks, causing oil to leak out of the engine and onto the manifold.
If you are unable to locate the source of the oil leak, it is recommended to have a professional mechanic inspect the vehicle
2/5/2023 6:28:49 PM • GMC Cars &... • 122 views • 0 helpful votes
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2003 GMC Envoy heater blower stays on when key is off?

Question edited for clarity. Question moved from Misc to model category. It appears to be a known issue. If the videos don't fix it, you need an auto electrician. https://www.google.com/search?q=mobile+auto+electrician+near+me
3/18/2023 3:34:24 PM • 2003 GMC Envoy • 44 views • 0 helpful votes
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1995 Gmc Sonoma is having trans problems

Sounds like a bad transmission. Once the oil in your transmission warms up it becomes a thinner viscosity allowing your clutch plates to slip
3/11/2023 11:23:28 PM • GMC Cars &... • 51 views • 0 helpful votes
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