GMC Sierra 2500 Questions Any type

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4l80e Transmission Problems

My 4l80e was working fine after I put it in the tourqe converter seal came out and I shut it off and replaced it now the transmission will not do anything its like it's just stuck in park or neutra...

Engine Swap

I have a 90 gmc 2500 with a 350 smallblock thats blown can i put a 99 chevy 350 in it

What's Going On With My Vehicle?

We just replaced our fuel pump and it idles and purrs like a kitten. But whenever we put it in gear and press the gas pedal it immediately dies. Before we changed the fuel pump it would make a w...


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?

89 GM Sierra K2500 Shifting Into 4 High

The only time I can shift into 4 high is if the truck is at a complete stop. Is this normal?

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...

Turn Signals

1989 gmc 2500 turn signals will come on but want flashs

2010 GMC 2500 HD Wont Engage Into Reverse

At -30 C this morning after warming up the truck for 15 minutes i attempted to back up to leave and the transmission would not engage into reverse it will go forward but not backward.The engine ligh...

Extra Fees

Will there be any additional fees such as tags and registration fees?

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?

Starter Making Loud Noise Wont Engage

Starter wont engage

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...


Shifting Hard

My 95 sierra k2500 4x4

What Is My 1989 GMC Sierra Worth, Not Currently Running, Faded Paint?

1989 GMC Sierra Truck, not currently running, faded paint, no radio


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...


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