1992 Geo Storm

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

ECM CAUSES ENGINE RPM TO INCREASE DURING WARM/HOT WEATHER WHICH WILL NOT DROP TO NORMAL WHEN THE CLUTCH IS ENGAGED UNLESS THE THROTTLE IS PHYSICALLY MOVED (BLIPPED). THIS DANGEROUS AS IT DOESN'T ALWAYS HAPPEN AND CAN CAUSE THE CAR TO NOT DECELERATE WHEN THE THROTTLE PEDAL IS LIFTED. THIS IS NOT A ONCE A YEAR DEFECT AS YOU ASK BELOW; (HAD TO FILL IN THE BLOCKS OR I COULDN'T CONTINUE). IT IS PREVALENT ON ALL FWD ISUZU BUILT AUTOMOBILES FROM 1989 THROUGH 1994. *LA

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

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 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.

AFTER I PURCHASED THIS CAR ON APPROX. 5/20/2002,I NOTICED A SMALL RUMBLING SOUND ACCOMPANIED WITH THE SMELL OF EXHAUST FUMES INSIDE THE VEHICLE.ON 9/1/2002 I WAS STOPPED AT A RED LIGHT WHEN I HEARD AN ENORMOUS RUMBLE I PROCEEDEDBACK HOME APPROX.2 BLOCKS. I THEN PUT THECAR UP ON CAR RAMPS AND SAW THE PIPE FROM THE MANIFOLD TO THECONVERTER WAS IN GOOD SHAPE EXCEPT AT THE FLANGE BY THE MANIFOLD IT WAS SHEARED (NO RUST)I THEN INSPECTED THE EXHAUST MANIFOLD AND DISCOVEREDA 5 INCH CRACK.I THEN CALLED REPAIR SHOPS ,THEY TELL ME THIS IS CONSTANT ON ALL GEO,S I CALLED 30 USED AUTO PARTS YARDS THEY TELL ME ALL GEO EXHAUST MANIFOLDS CRACK AND THERE ARE NONE TO BE FOUND.AS THIS IS AN EXHAUST AND POTENTIALY FATAL FLAW I WILL AWAIT YOUR RESPONSE BEFORE WRITING THE NEWSPAPERS.*AK

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