Questions & Answers for: Buick motor surges

surges -- a vacuum leak(?) -- as I increase rpms and then it seems to "stumble" and will not develop full power. make sure the idler motor is conected and wires are free and not stuck under the intake

...surges as I go up a hill,in cruise. But not if I put it in 3rd gear. Whats wrong? This sounds like it has a vacuum leak. The reason it doesn't happen in 3rd gear, the motor is turning faster. Do any ...

...surges ahead. I have been told to have the GM Service people check the TPS (Throttle Positioning Sensor) they say the test proves it is ok but they test it on a trial drive and I was told they don't ...

...surges when in gear .if i dont leave the ac on car will most likely stall but when driving it runs great check for vacuum line leaks , also remove and clean the idle air control motor and clean its ...

when holding throttle steady the motor surges you should check for vacum leaks if there are none it could be the tps sensor pop prob. with buicks have code read

...in your vehical that caused the fuse to blow. Even if you have replaced the wiring, the window motor may still be bad. If you have a burnt out window motor, it may need to be replaced. Hope this ...

...the fluids. The surging becomes very strong at times, that I almost thought I might have broke a motor or transmission mount. oxygen ...

...a decent... reasoned... long & tedious answer for you. Short version: Lots of FI General Motors engines have TSB (tech service bulletins)... indicating the IDLE AIR CONTROL valve causing ...

still has high idle and surge. gas pedal cable fine, cruise control cable from cruise control elect motor box on fire wall really tight. removed cruise cable from throttle body side idles a little low

...contacts, and supplies battery positive voltage from the cool fan 1 fuse through the cooling fan motor supply voltage circuit to the left cooling fan. The ground path for the left cooling fan is ...