Pontiac Sunfire Car Repair Questions and Answers

Repair questions and answers for the Pontiac Sunfire.


1994 Pontiac Sunbird

Engine Size : 4 cylinder 2.0l
Question: My car is running rough sputtering and then stalling but it sounds like it idles just fine and now my battery has died don't know if its related or 2 different problems please help no money to go to mechanic.

1997 SUNFIRE. Engine Size : 2.2 Ecotec.

Question: I HAVE A 97 SUNFIRE WITH A 2.2 AND ITS ON ITS LAST LEG!!! I ALSO HAVE A 99 CHEVY CAVALIER WITH AN AWESOME 2.2!!! WILL IT BE THE SAME MOTOR ?? CAN I SWAP IT AND WILL IT WORK !!WILL THERE BE VERY MANY CHANGES TO MAKE IT WORK??? JUST A BROKE GUY THAT NEEDS TO KEEP THE COST DOWN AND NOT GET IN OVER MY HEAD!! TY RON.

Rear Brakes problem with my 2000 Pontiac Sunfire 4 cylinder 2.2L.

GM Computer codes = no
Repairs made- rear drums turned all springs replaced new brake shoes on both sides.
Question = im driving down the road hit the brakes and feel thump thump and here click click the more i press harder and the noise becomes louder and more repetitive.

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How Things Work

Brakes- Hydraulic System- How Does It Work

The hydraulic brake system consists of the following:

Hydraulic Brake Master Cylinder Fluid Reservoir: Contains supply of brake fluid for the hydraulic brake system.

Hydraulic Brake Master Cylinder: Converts mechanical input force into hydraulic output pressure. Hydraulic output pressure is distributed from the master cylinder

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Common Engine Codes

Oxygen Sensor Code P0130 - P0141

The powertrain control module (PCM) supplies a bias voltage of about 450 mV between the heated oxygen sensor (HO2S) high signal circuit and the HO2S low reference circuit. When measured with a 10 mega ohm digital voltmeter, this may display as low as 350 mV. The oxygen sensor signal varies from about 800 mV when the exhaust is rich, to about 50 mV when the exhaust is lean.

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