Problem Reports
Problem with your car? See what our experts say or submit your own.
1990 Pontiac Grand Am Problems
Engine misfire due to ignition coil housing failure
The ignition coil housing may fail causing an engine misfire on one or more cylinders.
Incorrect head light Aim Because Head light Assembly not Installed Correctly
The head light aim may be out of adjustment after replacing one of the head light bulbs, This can be caused by the head light assembly not being correctly installed after bulb replacement.
Rough Running Engine Due to Vacuum Leak
The engine vacuum hose to the MAP sensor may crack resulting in a vacuum leak causing the engine to run rough and/or stall.
The Engine May Stall After Extended Freeway Driving
The torque converter clutch can stick "on" after extended freeway driving causing the engine to stall when coming to a stop. Our technicians tell us when this occurs, the engine usually will restart and stall when put into gear. After allowing about twenty minutes for the engine and transmission to cool down, the engine will start and the transmission will operate normally. Replacing the torque converter clutch solenoid, transmission filter, and fluid will generally correct this issue.
Engine Oil Leak From Valve Cover Gasket
This engine may leak oil from the valve cover gasket.
Front Brake Rotor Wear Can Cause Pulsations
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.
Timing Chain Tensioner/Guides May Wear and Cause Noise
The timing chain tensioner and guides are prone to wear and may develop an abnormal noise, requiring replacement.
Coolant Leak From Heater Core
The heater core under the right side of the dashboard may leak engine coolant which can puddle on the passenger front floor. The loss of coolant may cause an engine overheating condition. Our technicians tell us that removal of the dash board is necessary to replace the heater on these vehicles.
Engine Stall Or No Start Condition
The fuel pump may fail causing engine to stall and not restart.
Transmission Fluid Leak From Cooler Line
The rubber section of an automatic transmission cooler line may develop a fluid leak . In some cases the leaking section of hose can be replaced. In others, the complete cooler line must be replaced to correct this concern.
Engine Overheating Due to Head Gasket Failure
The 2.3L 4 cylinder engine can be prone to head gasket failure. This can result in coolant loss and engine overheating.
Check Engine Light Due to Oxygen Sensor Failure
The oxygen sensor can fail causing Check Engine Light illumination and the engine to run rich (burn more fuel than normal).
High Pressure Power Steering Hose Can Leak Fluid
The high pressure power steering hose will commonly leak fluid; it should be replaced.
Poor Ride/Handling Due to Worn Suspension Struts
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.
Power Window Not Working Due to Window Motor
A door window may move slowly or stop in mid travel due to a failing power window motor. The affected window may start working again after the motor cools off. Replacing the faulty window motor will commonly correct this concern.
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