There are 7 stored owner reports matching the engine leading-label group for the 1990 Geo Storm in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 7 of 7 matching reports.
Open the full vehicle complaint log (all categories)VEHICLE SUDDENLY ACCELERATED. CONSUMER HAD TO HOLD THE BRAKES SO THAT VEHICLE WOULD SLOWDOWN. ALSO, CONSUMER SMELLED GASOLINE COMING THOUGH THE VENT AREA. *AK
PROBLEM WITH THE ECU IS A GMC MANUFACTURING DEFECT. DEALER WILL NOT REPLACE ECU. ECU HAS PROBLEM WITH BOARD LAMINATE EXPANDING AND CONTRACTING WITH TEMPERATURE CHANGE WHICH CAUSES DAMAGE TO THE CIRCUIT BOARD AND CHIP CONNECTIONS. SHOULD BE RECALLED AND REPLACED BY GM FREE OF CHARGE FOR ALL GEO STORMS. EXHAUST HEADER IS MADE OF IRON AND RUSTS IMMEDIATELY AFTER INSTALLATION. A FEW YEARS AFTERWARDS, EXHAUST HEADER WILL CRACK AND MUST BE REPLACED AT OWNER'S COST. THIS PART SHOULD BE REPLACED BY DEALER WITH SAME PART, FREE OF CHARGE, EVERY TIME IT BREAKS, OR REPLACED WITH A COMPONENT THAT WILL NOT RUST AND CRACK. *AK
SEEMS TO BE A COMMON PROBLEM WITH 1990/91 1.6 GEO STORMS. NO SAFETY DEFECT LISTED IN THE SUMMARY. *AK
EXHAUST MANIFOLD CRACKED TWICE.
MUFFLER MALFUNCTIONED. *AK
EXHAUST MANIFOLD HAS DEVELOPED A CRACK. PLEASE DESCRIBE DETAILS.*AK
THE MUFFLER CAME OFF,THE TWO FRONT DOOR WILL NOT OPEN AND THE PASSENGER SIDE SEAT BELT BUCKLE CAME APART, THE WINDOW WILL NOT COME DOWN . TT
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Sep 11, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.