Questions & Answers for: 1991 gmc high idle

...LIKE GETTING NO GAS SOMETIMES, STALLS OUT.THERES NO CHECK ENGINE LIGHT ON. 1991 GMC JIMMY 4.3 ENGINE cHECK THE FUEL PRESSURE AT THE RAIL. iF LOW i WOULD CHECK THE INLINE FILTER AND THEN A POSSIBLE ...

1991 GMC JIMMY 4.3 ENGINE, IT IDLES ROUGH AND SOMETIMES HIGH AND LOW WANT GO ON ROAD UNLESS YOU PUSH GAS ALL THE WAY DOWN AND SOMETIMES STALLS OUT, NO CHECK ENGINE LIGHT ON. SOMETIMES IDLE PRETTY GOOD

1991 Sonoma Idles high and somtimes wont idle I changed the fuel pump and fuel filter on my 91' Sonoma recently and it ran again. The only problem is that it is idleing eratically. It runs this way ...

...1991 k2500 5.7 tbi 4wd auto intermittent rough idle replaced map, all ignition rebuilt, new o2 sensor High HC? ****** ignition timing....this will lower HC but raise other values during test. Do you ...

1991 GMC Sierra revs high and bogs out when Truck bogs out when applying gas. Revs so high I can take off from stop without applying gas. Will not go uphill, bogs out and wants to stall. Does not idle

why does my gmc sierra run at a high rpm Could be a temperature sensor, Idle air control issue, or even a power steering switch. A scanner will tell you the problem.

1991 gmc sierra truck idles high, and when you step on the gas it sputters you can put the petal to the floor and it feel like its getting no fuel what should could be the issue besides the fuel ...

high idle prob fixxed on my 91 gmc sierra k2500 454? i dont need need the high idle at all Typically high idle occurs when vehicle is started when cold. The idle will go down when the vehicle warms up

high idle Truck Idles high in between gears, and when sitting. Once in a while it will kick back to normal idle, but mostly its high. Dang thing increases speed without gas in all gears Time for a IAC

high idle has a high idle when i start it and when its wormed up mine did same thing and the cause was that the TBI gaskets were shot , mainly the one right on top of the unit but below the injectors