1991 Geo Storm: jerking or lurching

Filed Aug 8, 2005 · Electrical · 86,000 miles · PA

1992 geo storm manual transmission. When engine gets hot ( summer months ) engine idle increases to 2,500 - 3,500 RPM. Must use foot to pull up on accelarator. Car begins to overheat lurches forward. Car also stalls without warning. Heard it has to do with faulty ECM. Very dangerous situation.

Filed Jun 25, 2002 · Acceleration · OH

Vehicle would intermittently lurch forward when brakes were applied. Dealer contacted. Feel free to provide any further information.

Filed Jul 13, 1999 · Acceleration · CT

I've have experienced problems of erratic idle speed, the engine revving and dropping uncontrolably and sporadic dying of the engine when I press in the clutch. The problem has been traced to my delco electronic control module being faulty. This faulty module unfortuately controls all of the functions of the car including idle. This is a hazard to me and others, the erratic idle has causes my (manual) car to lurch forward uncontrolably, during take-off. The sporadic dying causes the most danger. When the clutch is pressed in, in preperation to stop the car dies and with it braking power and steering. This leaves the driver attempting to stop before brake pressure is lost, and at the same time attempting to restart the car in a vain effort... This has happened to me many times, fortunately I haven't had an accident yet. I am outraged that isuzu/geo can allow a cars to be built like this, with faulty computers. Its a safety hazard, which they expect the owner to fix at an outragous cost. Its either fix it and wait for it to happen again with the new computer at a cost to me, or live with the fact that they built an unsafe car. This I find unacceptable, thats why I'm writing you, someone needs to make them fess up to thier mistake and fix it.

Filed Jun 30, 1999 · Acceleration, Engine · WI

At an idle, in park or in gear, the engine speed often rises from normal (1000rpm) up to as high as 4000 rpms. This happens at a stand still and also when approaching, sitting at or leaving stopp lights also. This problem has caused unwanted and unsafe "lurcheing" forward when letting out the clutch. At times, when the engine speed comes back down, it will drop too far and cause the engine to stall. This happened to me in the middle of a busy inter section and I was nearly rearended. To my knowledge gm is aware of this problem but refuses to take care of it outside normal warranty period.

Filed Jun 28, 1999 · Engine · UT

Engine idles uncontrolably at high rpms (2000+) when stopped, this presents a saftey threat if I should have my foot slip off the clutch or have a cable failure because the car will lurch forward before the engine dies. This could cause an accident involving a pedestrian or traffic going the other direction at an intersection.

Filed Jun 27, 1999 · Acceleration · OH

Sporadic idle and high idle forces driver to keep foot firmly on brake to keep car from lurching and going to fast. Computer related problem. Could cause injury or death to a pedistrian. Needs to be corrected.

Filed Jan 6, 1995 · Engine · OH

Exhaust manifold is cracked. Vehicle hesitates, bucks and jerks. Tt