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 Problems

Check 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.

Inspect transmission/fluid every 30,000 miles

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.

Hesitation or No Start Due to Internal Distributor Fault

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.

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1991 Geo Prizm Questions

is 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 ...

A/C quits working and won't shift out of park - fuse keeps blowing? (1 answer)

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?

No wirin harness or diagram putting in a new stereo cant tell the wires (1 answer)

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

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1991 Geo Prizm Recalls

Recall 90V191000
LUG NUTS THAT RETAIN WHEELS AND WHEEL COVERS MAY HAVE BEEN TORQUED TO LOWER THAN RECOMMENDED SPECIFICATIONS.

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1991 Geo Prizm Reviews

super good i love it
A relative gave me a 1991 Geo Prizm in Sep 2009. It sat in a garage for 2 years without moving. Replaced battery, oil, spark plugs, distributor cap & wiring harness, and filled it up with premium gas to mix with the aged gas. Has run smoothly ever since. I quickly found out that this was one of the most reliable cars ever made. After reading this and other forums, I'm excited to get this little...
THESE CARS WERE BUILT TO LAST ONLY IF YOU REALLY DO TAKE CARE OF THEM. THIS GEO HAS 175000 ON THE ENGINE. TIMING BELT CHANGED ONCE. OIL CHANGES EVERY 3500-4000 MILES ALONG WITH THE FILTER. 27 MPG. IF I COULD BUY A NEW GEO RIGHT OFF THE SHOW FLOOR, I'D BUY TWO. GOOD COMMUTING CAR AND VERY RELIABLE OF COURSE NOTHING LASTS FOREVER NOT EVEN HUMAMS. JR

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