1991 Isuzu Impulse Vehicle speed control Problems
- Complaints
- 7about this part
- Share
- 28%of 25 total for the year
- Median mileage
- —not reported
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 7 complaints about the vehicle speed control of the 1991 Isuzu Impulse, 28% of the 25 complaints for this model year.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“As the weather is getting warmer the engine revs and drops uncontrollably. The car also stalls at any speed. I have had it even stall on the highway. I hear this is a common problem on this particular type of ECM unit, please check into this for me. If I hadn't taken a defensive driving course I could be dead right now.”
NHTSA complaint #747780, filed 2001-07“I have had this problem one too many times, and it is starting to get annoying. I can't afford to buy another car right now and I would'nt want anyone else to have this problem with a car. It's very dangerous. My car can take off at any time it wants to. It almost made me get in an accident in a traffic jam. The dealer won't cover the defect.”
NHTSA complaint #708619, filed 1999-07“The symptoms of this fault are most notably erratic idle, idle revving and dropping, idle dipping often with engine dying, idle hanging high above 2,000 RPM, and engine dying or stalling for no reason with no trouble codes. These symptoms will often only occur in warmer weather as the metal circuits of the circuit board seem most vulnerable to short circuits at solder cracks when the temperature within the car is above 80 degrees fahrenheit. …”
NHTSA complaint #756046, filed 2001-12“Ecu has erratic problem. Will put the car into high idle at any given speed and will not reset unless car is turned off and restarted. Replace accelerator cable and reseated ECM several times to no avail. Try resetting the ECM to get the car off of high idle while you are in traffic.”
NHTSA complaint #716230, filed 1999-12“My address is in ontario,canada postal code l5j-3n5. The symptoms of this fault are most notably erratic idle, idle revving and dropping, idle dipping often with engine dying, idle hanging high above 2,000 RPM, and engine dying or stalling for no reason with no trouble codes. These symptoms will often only occur in warmer weather as the metal circuits of the circuit board seem most vulnerable to short circuits at solder cracks when the temperature within the car is above 80 degrees fahrenheit. …”
NHTSA complaint #715941, filed 1999-12Vehicle speed control: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 1991 | 7 | 28% |
| 1990 | 2 | 40% |
Other parts of the 1991 Isuzu Impulse
9 complaintsEngine cooling
5 complaintsOther or unknown
4 complaintsExterior lighting
1 complaintsLatches, locks and linkages
1 complaints
← All problems reported for the 1991 Isuzu Impulse
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology