1991 gmc sonoma random loss of power

GMC Sonoma Maintenance & Repair Questions - CarGurus

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CarGurusGet fast answers to your GMC Sonoma Maintenance & Repair questions from experts in the CarGurus ... My 1999 Gmc Sonoma 4.3 Will Start But Will Stay Running ...1991 gmc sonoma 2.8 l v6 changed everything in the fuel and ignition system except for the ... Why Is The Engien Dying When The Ecm-batt Fuse Burns Out?

can you bypass the fuel pump relay on a 1997 gmc sonoma

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CarGurusAug 7, 2014 - can you bypass the fuel pump relay on a 1997 gmc sonoma - I have no power at the pump. can i run a new positive lead from the fuse box straight to the pump... ... Question type: Maintenance & Repair ... 1991 gmc sonoma 2.8 l v6 changed everything in the fuel and ignition system except for the spark ...

GMC Sonoma Questions - wiring diagram for a 1995 gmc ...

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It could be an internal problem with a pump, or it could be it needs to be serviced really bad. Most 'oil change' places can also do transmission services... I'd try that first, before paying a big repair bill to a shop. good luck.

i have a 1992 gmc sonoma with a 2.8liter engine with a 5speed manual trans. does it uses atf or gear oil if it uses atf what kind?

The v6 engines had a problem with the throttle body gasket leaking air. Could be the same problem on your engine. It wouldn;t happen until the vehicle had been driven for a while, then the gasket would become fuel soaked and would be sucked in at the back corner of the gasket. Replace the throttle body gasket and see if the problem goes away.

Brake fluid

Try cleaning the throttle plate with carb cleaner and a toothbrush, be sure to clean the edges.

try replacing the throttle position sensor

DO NOT DRIVE, get the vehicle to a transmission specialist it sounds as if a bearing has failed in the transmission. these units have a habit of exploding through the case. If this happens a very expensive new unit is required. second hand units are as rare as rocking horse *?$!.

Check to see if there are tire inflation sensors in the valve stems in the wheels. If it has these, they could be the problem.

main bearings are worn and when heats up they expand even more and oil can blow out these with less pressure.