Pontiac Automotive Repair Questions

Pontiac Cars and SUV's.

Here is a list of auto repair questions and answers.

Click on your model to read the articles.

Articles being added all the time.

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Latest Articles

Why Do My Brakes Squeak or ...

A constant squealing form the brakes when driving, turning, or braking may be the sign that the ...

97 f150 won't start

I've got a 1997 f150 6 cyl with 167,000 miles that started cutting out, then wouldn't start. I ...

Can't Fill Gas Tank On My ...

Problem with my 2001 Chevy Blazer 4.3. Check Engine code P0446. Changed a vent valve on intake, but ...

Car and Truck OBD Code List ...

Engine computer trouble codes list and descriptions. DTC P0013 Exhaust Camshaft Position (CMP) ...

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Does My Car Need A Front End Alignment?

Why should you get a front end alignment? Improper front end alignment is a major cause of premature tire wear. Over years of driving, a properly aligned vehicle can add thousands of miles to the life of your tires. Most tires are replaced because of premature wear caused by the front end being out of alignment. When the front end is line properly, this makes it easier for the car to roll. Read more...

Common Engine Codes

Oxygen Sensor Code P0036 and P0056

P0036 - P0056
Heated oxygen sensors (HO2S) are used for fuel control and post catalyst monitoring. Each HO2S compares the oxygen content of the surrounding air with the oxygen content in the exhaust stream. The HO2S must reach operating temperature to provide an accurate voltage signal. A heating element inside the HO2S minimizes the time required for the sensor to reach operating temperature.

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