Questions & Answers for: GMC idle surges

surges @ cruizing speed, rough idle (code 32) 1993 gmc sonoma 4.3L v6, fuel Inj. surging @ cruising speed, running rough @ low rpm, and doesn't want to idle. Chk Engine light is flashing 32. what do i

why would my idle surge when ac is on and car is in drive most likely is the idle air control not doing it`s job,replacement of the idle air control will most likely solve the problem.

99 gmc sierra surges while idling in gear what can i look for clean the EGR valve and also the idle control motor valve Where is idle control motor valve

...idle, surges from idle to highway speeds car stalls after warms up, hesitates on take off, wont idle, it surges at idle and highway speeds, after it stalls you have to use full throttle to restart ...

surging idle on 89 TBI 3500 truck surging  at  a  idle

rough idle in a 1999 gmc suburban, surging during idle and drive have replaced wires, plugs, MAS,heat sensors, camshaft positioning, coil, fuel filter,distributer cap and button and I still have rough

...idle surges, high and low. i've relaced the IAC, cleaned the throttle body, replaced plugs and wires, the main engine computer was replaced 7 months ago but at crank idle drops then surges over ...

...idling, in park or drive the engine has a cyclical engine surge. The surge rpm is equal to fast idle. The repeating cycle is 10 seconds normal idle, and 2 seconds surge to fast idle then back to ...

1988 GMC k2500 5.7l 350 4wd throt body::: doesn't idle but dies after kicking it over in the morning and when it did idle it was not smooth. Surgeing Hello. It seems your truck has either an excessive

...surges jumps up and down a few hundred rpm. * Blower motor * A/C control * Actuators How do I test these and where else should I look? If the operation of your A/C and heat is causing your engine to ...