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Geo Problems

Find the most common issues based on Geo owner complaints.
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Most Common Geo Problems

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 pick...
An engine oil leak may develop from the front crankshaft seal due to hardening of the rubber seal. There is a revised seal and sleeve available to correct this concern. Our technicians tell us th...
At higher mileages, (125,000-150,000) the automatic transmission may not shift correctly. This can be caused by the throttle position sensor being out of adjustment or a shift solenoid needing to b...
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8 Known Geo Brakes Problems

The brake pedal may pulsate on apply due to warped brake rotors. This condition is commonly caused by uneven lug nut torque. Proper lug nut torque is recommended to try and avoid this concern.
At higher mileages, an anti-lock brake system wheel speed sensor may wear out and illuminate the ABS warning light. It is recommended to replace the sensor with a factory part and be sure to clean ...
Front brake rotors can wear causing a pulsation felt in the brake pedal. Our technicians tell us this condition is best corrected by replacement of the front rotors and brake pads.

5 Known Geo Drive Train Problems

At higher mileages, (125,000-150,000) the automatic transmission may not shift correctly. This can be caused by the throttle position sensor being out of adjustment or a shift solenoid needing to b...
On vehicles with a manual transmission, worn shift bushings can cause the transmission to pop out of gear, especially when coasting down in 1st or 2nd gear. Replacing all the shift linkage bushin...
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 ...

4 Known Geo Electrical & Lights Problems

If the engine will not crank over, the most common problem is the starter. These will tend to go out at about 100,00-125,000 miles. Sometimes it is only the starter solenoid, but often the comple...
The idle air control motors tend to become carboned up at around 100,000 miles and can cause a start and stall and/or stalling at stop sign problems. Our technicians tell us that many times these m...
Some of the fuel/temperature gauges fail and read maximum at all times. Our technicians tell us that there is a gauge cluster replacement that includes the little voltage regulator as well.

9 Known Geo Engine Problems

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 pick...
An engine oil leak may develop from the front crankshaft seal due to hardening of the rubber seal. There is a revised seal and sleeve available to correct this concern. Our technicians tell us th...
The engine mount on the passenger side of the car can wear out on cars with high mileage. This will put extra stress on the other mounts and the faulty mount will need to be replaced.

8 Known Geo Exhaust & Emissions Problems

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 temperat...
Over the time the exhaust gas recirculation (EGR) system may become plugged with debris, the oxygen sensor may also be getting slow or 'lazy' around this time. When servicing or cleaning the EGR ...
A condition may develop where the accelerator pedal sticks and is not smooth. This can be caused by carbon build up on the throttle shaft or throttle body cleaner was used which removed the speci...

3 Known Geo Heating & Air Conditioning Problems

Usually by 150,000 miles the AC system will need some attention, especially in climates where it is used often. Our technicians tell us that it is best to service the AC system every 2-3 years. T...
Typically the AC compressor is worn out by about 150,000 miles in warm and/or humid climates. It is recommended to replace the complete compressor including a new clutch and rpm sensor, and to ...
The AC Expansion Valve may develop a very slow leak or allow too much refrigerant flow which reduces cooling. Our technicians tell us that Toyota makes an updated expansion valve to resolve these...

2 Known Geo Maintenance Problems

Brake fluid can become dirty and may cause problems in the brake system; it should be flushed every 60,000 miles.
Brake fluid can become dirty and may cause problems in the brake system; it should be flushed every 60,000 miles.

2 Known Geo Miscellaneous Problems

By 100,000 miles the ignition key tends to wear out and should be replaced or it may not work as well in the door locks or ignition switch.
The spot welds on the hood striker may be misaligned causing the hood not to latch properly. The correction is to install oversize washers under striker mounting bolts to secure the striker.

4 Known Geo Suspension & Steering Problems

The power steering pump and power steering hoses tend to develop leaks and require replacement.
The front struts may show signs of wear, or be excessively bouncy ride at freeway speeds. This may begin to occur at around 75,000 miles.
If the vehicle develops an annoying, clunking sound when driving over bumps it is usually the struts and strut bearing plates. These may need replacing at 100,000-125,000 miles or sooner. If the ...

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Known Geo Problems & Complaints

At higher mileages, (125,000-150,000) the automatic transmission may not shift correctly. This can be caused by the throttle position sensor being out of adjustment or a shift solenoid needing to b...
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 pick...
Over the time the exhaust gas recirculation (EGR) system may become plugged with debris, the oxygen sensor may also be getting slow or 'lazy' around this time. When servicing or cleaning the EGR ...
At 125,000-150,000 miles, the Brake Master Cylinder may need replacing. When replacing the master cylinder, it is critical to adjust the brake pedal to master cylinder pushrod clearance or the brak...
Usually by 150,000 miles the AC system will need some attention, especially in climates where it is used often. Our technicians tell us that it is best to service the AC system every 2-3 years. T...
By 100,000 miles the ignition key tends to wear out and should be replaced or it may not work as well in the door locks or ignition switch.
The AC Expansion Valve may develop a very slow leak or allow too much refrigerant flow which reduces cooling. Our technicians tell us that Toyota makes an updated expansion valve to resolve these...
The idle air control motors tend to become carboned up at around 100,000 miles and can cause a start and stall and/or stalling at stop sign problems. Our technicians tell us that many times these m...
Typically the AC compressor is worn out by about 150,000 miles in warm and/or humid climates. It is recommended to replace the complete compressor including a new clutch and rpm sensor, and to ...
On vehicles with a manual transmission, worn shift bushings can cause the transmission to pop out of gear, especially when coasting down in 1st or 2nd gear. Replacing all the shift linkage bushin...
A loss of power on the freeway may due to an internally leaking fuel pulsation dampener. This commonly occurs on higher mileage vehicles.
A rough idle and even an emissions inspection failure for high HC and CO can be caused by improperly adjusted valves. Also, exhaust valves may become to tight which can lead to valve failures. Ou...
The Throttle Position Sensor can get out of adjustment due to wear in the throttle body or due to carbon build up. This will cause the idle timing to advance more than 30 degrees which will cause v...
At higher mileages, an anti-lock brake system wheel speed sensor may wear out and illuminate the ABS warning light. It is recommended to replace the sensor with a factory part and be sure to clean ...
If the engine will not crank over, the most common problem is the starter. These will tend to go out at about 100,00-125,000 miles. Sometimes it is only the starter solenoid, but often the comple...
Get a Repair Estimate
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RepairPal estimates are guaranteed at over 1,700 quality certified locations nationwide. Learn more
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