1990 Pontiac Firebird Problems

RepairPal has identified the most common problems with the 1990 Pontiac Firebird as reported by actual vehicle owners. We'll tell you what the problem is and what it'll take to fix it.

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21
Known Problems

The windows on the 1984-2002 Pontiac Firebird and Trans Am commonly lean in towards the cabin when they are rolled down, and a metal-on-glass rattle is heard with any vibration. As the problem advances, popping may be heard from the door as the window rolls up or down.

This issue is caused by failing window regulator rivets which no longer hold the window upright. This places undue strain on pads that prevent the window from contacting the metal door frame. After a short time, the pads inside the door wear out, allowing the window to rattle and become scratched in a vertical pattern.

To correct the rattling and popping noises, the window regulator rivets and pads must be replaced.

The roller on the window guide attached to the bottom of the window glass may break off and cause the window to come off track.

The fuel injectors may short out electricity causing a rougher than normal idle.

The fuel pump may fail causing the engine to stall and not restart. Our technicians recommend replacing the fuel filter every 30,000 miles to help prevent undue strain on the fuel pump.

The spark plugs should be replaced every 30,000 miles and the spark plug wires checked for hot spots and cracks.

The ignition module or the crankshaft position sensor may fail causing the engine to stall and not restart.

You may be able to prevent 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.

Problems with the anti-theft systems using the raised-chip key can prevent the car from starting. The wires in the steering column to the ignition lock cylinder tend to break. The the key and ignition lock cylinder must be replaced to correct this condition.

The head light door actuators may fail causing the head lights to become stuck in the raised or lowered position.

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.

A stalling issue may occur if the battery goes dead or is disconnected and the "idle learn" procedure is not performed. For more information on "relearning" the engine idle speed, please click here»

The intake manifold or PCV valve hose may develop an engine vacuum leak causing a rougher than normal idle am may result in illumination of the check engine (SES) light.

Body: A dirty throttle body may cause a lower than normal engine idle resulting in a stalling condition. A stalling condition may also result if an idle learn procedure is not performed if the battery goes dead or is disconnected.

A coolant leak may develop from the water pump. The engine may overheat as a result of the coolant loss. A leaking water pump should be replaced.

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