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Resources for the Repair and Maintenance of your 1990 Mazda Protege

1990 Mazda Protege

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1990 Mazda Protege Problems

Engine -- Verified

The timing belt tensioner pulley may make a squealing noise from the timing cover area on cold startup. An updated tensioner with a thicker mounting bracket to eliminate vibration may be needed to solve the problem.

Engine -- Verified

Misfires under load (acceleration) can be caused by leaky spark plug boots. When a spark plug boot leaks, it allows the spark to arc, or jump, to the cylinder head. New spark plug wires will be needed.

Engine -- Verified

An electrically shorted air flow sensor can cause a crank-no start condition. Diagnosis may show that ignition spark is normal, and there are no trouble codes stored.

Engine -- Verified

A loose or corroded ground terminal on the driver's side of the cylinder head can cause a rough idle, misfires, and there may be trouble codes. Restore the ground to the cylinder head.

Engine -- Verified

If the engine cranks but does not start, and diagnosis shows no fuel pressure, the fuel pump relay is frequently the problem. If the fuel pump relay is defective, the fuel pump will not energize and therefore, not generate fuel pressure so the engine can run.

1990 Mazda Protege Questions and Answers

strangebob, 1990 Mazda Protege, DOHC, Conway, SC

New fuel pump quit working. Took it out and replaced it. Found the fuel sock had basically disolved for some reason. Bits of sock in gas tank. Cleaned out, put in new pump and sock. Hard to crank n...

ffej87, 1990 Mazda Protege, SOHC, Cochranton, PA

currently was driving it and parked. when i started it and went down the road i had noticed that the speedometer had quit working. what would be the cause of that?

tim_123, 1990 Mazda Protege, 1.8L 4 Cylinder, Walla Walla, WA

when i have about 1/4 or less gas left in my fuel tank car kinda chokes when turning and giving it gas on the corners, but when it straightens out it works fine. could it be water in my fuel tank? ...

Visitor, 1990 Mazda Protege, 1.8L 4 Cylinder, El Paso, TX

water pump licking, the car is over heating

corimwatts1, 1990 Mazda Protege, 1.8L 4 Cylinder, Laramie, WY

i need a picture of the engine to see where its located at

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1990 Mazda Protege Reviews

Car runs great and great on gas mileage (about 35 mpg city). only problem ive had is with the speedometer quit working.

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