Tl* the contact owns a 1993 geo storm. While driving at any speed, the electronic control unit failed and the check engine light illuminated. The failure recurred several times. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was 147,300.
Electrical system
Geo Storm Electrical problems by year
68 complaints filed with NHTSA about the Geo Storm's electrical system. Dead batteries, warning lights, wiring, alternators, infotainment and electronic module failures.
Electrical complaints by model year
Latest Storm electrical complaints
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. *Jb
My 1993 geo storm has started stopping running while being driven and leaving me stranded. It is currently in the shop and appears to have a bad ecm. Sources on the internet indicate this is an inherent problem in the model car.*Ak
I have a 1992 geo storm 2+2 with a 12 valve motor and a 5 speed manual transmission the car constantly overheats even after entire cooling system was replace. Car stalls, idles eratically due to gm's faulty ecm insulative spray. And just recently loss of rear tail lamps and dash lamps. Brake turning and hazard lamps still work. All fuses and relays are good. *La
93 Geo storm randomly stalls and will not restart for several minutes to several hours. Have replaced cap, wires, rotor, plugs, pick-up and ignition module and cannot find problem. I have found many reports of the insulation on the ecu going bad and causing problems. *Jb
Car idles erratically, it also idles above 2000 rpm sometimes it lacks power and sometime it does not. The car stalls while at idle, or sometimes it pumps gas irregularly causing a pulsing.....*Jn
Ecu causing erratic idle in my 1992 geo storm. It is worse in warm weather. It has almost caused me to run into a train when r.P.M jumped up to over 2000 rpm. Since it was an automatic it lurched forward. Gm said it was because of insulating spray contracting causing shorts in ecu. My car has shut off in traffic causing traffic jams also. Please make gm recall these cars for ecu repair before some one gets killed. *Nlm
My 1993 geo storm has been stalling lately. It is totally sporadic and does it when I am pulling out, when it is idling, and when I am on a freeway going along at a constant speed. This has put me in a very serious situation a number of times and has severely shaken me. It will stall in the middle of an intersection, and luckily all 6 times this happened no one was coming either way. I no longer drive my car, and I am afraid to sell it due to the fact this will happen to someone else. I had checked everything I...
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could think of until I read a article about the electronic control module being bad in 89-93 geo storms, isuzu impulses, and asuna sunfires. I would like to see a major recall put forth to fix this problem. Thank you.*Jb
For well over a year now, my 1992 geo storm-4 cyl., Has exhibited rpm's above 2000 when idling at a stop when the ambient temperature is above 60 degrees f. I must keep the brake pedal firmly pressed to the floor since the auto. Transmission wants to engage. This symptom also causes my vehicle to act as if it is engaged in cruise control, accelerating to about 30 mph, once the brake pedal is released. Cruise control was not option installed in the car at purchase. I have come to realize this is also a problem...
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with isuzu's, (the geo storm engine is an isuzu product), all due to the failure of the insulative spray on the ecm. I certainly hope the manufacturers can be held responsible for fixing this potentially dangerous condition.
On the morning of january 15,2003, my vehicle, (1993 geo storm, 1.6L eng, 152k miles), suddenly lost engine power on the freeway. I replaced the ignition module and also the ignition coil. The car started fine after that. Four days later, after a 45 min. Dentist apppointment, my car would not start. After 15 minutes of troubleshooting, it suddenly started. I have been encountering these same problems ever since.
Rpms rev up and down... Car dies... Insulative spray that manufacturer uses on the computer shinks and contracts with changing temperatures and breaks the solder at the computer causing misfires at idle and thoughout all driving speeds and ranges, engine revving up and down, engine dying, and rpm holding at 2000 rpm gm knows about the fault in there computers...They refuse to fix it at their expense... They used this spray on insulators on 85-93 delco computers... They use a new spray on 95 and up, but don't on factory reconditionerd ecu's prior to 1995. *Ak
Vehicle will stall while driving. Consumer believes there is a fault in ecu. Consumer is very concerned about safety while driving.*Ak
This is the 2nd ecm control module in 2 years. . .Both were new with only a year warranty. . .Problem only shows up in the summer. *Ak
The faulty ecu component on my car has again made my car to stall, but this time I was in a bad situation, w/the engine stalling out I had no power steering and power brakes, thus causing me to drive into a 10ft deep ditch. As metioned before, this has not been the only time my car has stalled due to this problem (ie in the middle of busy intersections and so forth) this is a very dagerous defect that, izuzu uand nhtsa are aware of, I'm hoping that this incident along w/the many others is enough for nhtsa to correct the problem . Thank you. *Ak
Some one should fix the problem so I can buy a new ecm. *Ak
Source: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked daily. Complaints are owners' own reports and are not verified. How we use the data