1990 GMC 2500 Pickup Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 1990 GMC 2500 Pickup

1990 GMC 2500 Pickup Problems

The power door lock actuators may become slow to operate or stop working completely and require replacement.

Power brake systems using "hydro-boost" may leak power steering fluid from the hydro-boost unit located behind the brake master cylinder. Replacement of the hydro-boost unit is the common repair to correct this concern.

The inside and outside door handles are prone to breaking.

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1990 GMC 2500 Pickup Questions

I have a 1990 GMC Sierra and I want to know if the bolt pattern will match onto a 1980 GMC . motors are both 350's

flushed the system, replace orifice tub, added 3 oz Pag 100 oil to new compressor, put the rest of the 8oz in accumulator, vacumed for 45 minutes. Added 1 can of r134a, compressor began cycling with short clutch runs. Low side pressure increased to 100, high side never got above 50. Removed co...

how do you put a new head gasket in my truck

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1990 GMC 2500 Pickup Reviews

Very reliable truck with its 350 cu inch V8 and 4 speed trans its a deer hunting machine and gets decent mph about 16 highway and 12 city

is a 1993 gmc 1500 compatible with a 1990 gmc 1500 ??? motor wize body and interior ???

I love my old truck, but it started leaking power stearing real bad. I started puting Lucas power stearing stop leak fluid in it and then sometimes when I first started it, the stearing wheel will jump and once it wouldn't turn at all. Once it freed up, it drove fine, but I am worried that it might freeze up while I am driving and cause a wreck. Is that a possibility? Is this a bad pump, ...

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