1991 Geo Prizm Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 1991 Geo Prizm
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1991 Geo Prizm ProblemsCheck Engine Light Due to Restricted EGR System
The EGR System tends to get restricted or blocked with carbon after 100,000- 125,000 miles which will cause an emissions test failure for NOX. If the EGR system is equipped with an EGR temperature sensor it will trigger a Check Engine Light for improper EGR flow. The repair is to clean out the EGR passages and the EGR Temperature sensor. Our technicians tell this repair is pretty straight forward and takes about 1-1.5 hours. It is also wise to verify the EGR system components i.e. the Transducer, EGR Valve and VSV Solenoid at this time.
You may be able to prevent automatic transmission problems by servicing the transmission and inspecting the fluid every 30,000 miles. If the fluid is dark or burned, the transmission system should be completely flushed.
The ignition coil inside the distributor may fail. Our technicians tell us this may result in a hesitation on acceleration, especially when the vehicle is warming up on cold, rainy days. The pickup coils inside the distributor can also fail and cause a no-start condition. There have also been some failures of the radio noise suppressors inside the distributors, which can short out. Our technicians recommend replacing the whole distributor with a complete, genuine Toyota distributor if any of its components fail.
1991 Geo Prizm Questionsis there a replaceable ignition coil on 1991 Gep Prizm. (1 answer)
1991 Geo Prizm stopped running while driving. No start after that. Getting fuel past the fuel filter. Rotor and cap less than a year old. Removed cap and rotor turns when trying to start so I am guessing it's not a timing belt issue. Car has 61000 miles. Wanted to know if anyone can tell me ...
Uped to 30 amp fuse works a while then blows. Same problem again. Mechanic thinks might be in the compressor. Do I need to replace it?
Im unable to figure out what wires are what and go where on the new stereo there is no wiring harness and im unable to figure the wires out