GMC Sierra 2500 Questions Maintenance & Repair

2003 Sierra 2500 Transmission Issues

I have a 2003 gmc sierra 2500 6.0 4l80e 4wd, tach and speedometer don’t work, the truck itself, when viewing live data, doesnt register how fast its going. All speed sensors ohm out to 1.39-1.42 oh...

2003 Gmc Sierra 2500 Transmission Issues

I have a 2003 gmc sierra 2500 6.0 4l80e 4wd. Ive had issues with two transmissions with it shifting hard, no speedometer or rpm gauges, and no start by key. Replaced neutral safety switch, checked ...

2003 Gmc Sierra 2500 Transmission Issues

I have an 03 gmc sierra 2500 6.0 4wd, Ive had this issue with two transmissions now, speedometer and rpm gauges show 0, the truck is shifting hard, ive tested 3 sensors that i have ( the truck is o...

My 2001 Sierra Pickup Truck Won't Start

truck won't start. Can sitting for months not running it cause this problem

Injectors Won’t Spray

I stuck the battery in backwards like a moron and now the injectors won’t spray I put a new computer in it and a relay and a pump and a filter and there is fuel pressure up to the throttle body bu...

Driver Door Ajar

I have a 2003 GMC truck, getting message , Driver door ajar and something is running down my batteries

Vacuum

Looking vacuum at half throtel

92 Gmc

The pickup wont stay running it will start then lose spark after about 30 seconds to a minute I've replaced the whole fuel system and ignition system except the ecm what could cause this?

98 GMC 7.4 Rebuilt Recommended Oil Grade

I just had my 98 GMC 7.4 motor rebuilt. The grade on the oil cap is 5-30. The guy at the rebuild shop recommended 20-50. I live in the San Joaquin valley in California where it's a 100 plus all summ...

Brake Lights

I’ve checked the fuse, bulbs, and wires under the steering wheel but the brake lights still won’t work. All of the other lights work on the truck

Won't Shift From 2nd To 3rd Gear

When driving & once it's in closed loop it won't shift from 2nd to 3rd gear. Already replaced tps,vss. Anyone know what I should check next?

My 1999 GMC Sierra Classic Usto Run On E10 But Now When I Put It In, It Doe...

Rattling Coming From Front Of Truck

My truck is making a loud rattle while idling. It sounds like something is loose but, I've checked and can't find anything that needs tightening. If i rev to 3000 rpm it stops briefly but, starts b...

40

Shifting Hard

My 95 sierra k2500 4x4

Rebuild

I want to rebuild my 1999 GMC Sierra to be like new.

Fuel Issue

Have a 2000 gmc k2500 with the 5.7. Just changed the fuel pump and fuel filter. It ran great for roughly 2 hours then began to spit and sputter and backfire through the intake. Barely limped it hom...

Headlights Won't Work

The headlights in my GMC Sierrra 2500 stopped working for some reason. I just had the alternator replaced, and when I got in to drive it that night, the headlights wouldn't turn on. However, the da...

There Is A Lock Icon On My 2003 Sierra 2500 Dash. The Truck Won't Do Anythi...

Truck was showing RFA low battery. Truck locks went on and off several times and then shut the truck down. Truck now has padlock icon on dash and won't respond to the key. Put a new battery in fob...

10

99 5.7 Vortec

I have a 99 gmc c2500 with a 5.7 vortec. I pulled the motor and dropped 4000$ into parts. Corvette crank cam pistons and heads. Got it running great till last week when I cold start and try and tak...

Chevy 350

Can I take a 350 out of a 1990 and swap it into a 1973 gmc?

GMC Sierra 2500 Experts

  • #1
    Rowefast
    Reputation
    180
  • #2
    Gene Arnett
    Reputation
    170
  • #3
    mikeatpriestlake
    Reputation
    70
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used GMC Sierra 2500HD
17 Great Deals out of 1,640 listings starting at $9,988
Used Chevrolet Silverado 2500HD
16 Great Deals out of 1,285 listings starting at $8,995
Used GMC Sierra 1500
148 Great Deals out of 7,258 listings starting at $3,950
Used Ford F-250 Super Duty
24 Great Deals out of 1,204 listings starting at $7,995
Used RAM 2500
55 Great Deals out of 2,180 listings starting at $14,962
Used Chevrolet Silverado 1500
202 Great Deals out of 5,975 listings starting at $2,975
Used Ford F-150
321 Great Deals out of 14,968 listings starting at $1,712
Used Dodge RAM 2500
23 listings starting at $9,975
Used GMC Yukon
16 Great Deals out of 929 listings starting at $1,225
Used GMC Sierra 3500HD
17 Great Deals out of 1,384 listings starting at $11,950
Used Chevrolet Silverado 2500
2 listings starting at $12,500
Used Toyota Tundra
35 Great Deals out of 1,184 listings starting at $8,500
Used RAM 1500
439 Great Deals out of 15,809 listings starting at $5,000
Used Ford F-250
6 listings
Used Ford F-350 Super Duty
39 Great Deals out of 2,598 listings starting at $8,888

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.