Pontiac Automotive Repair Questions

PontiacĀ Cars and SUV's.

HereĀ is a list of auto repair questions and answers.

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Latest Articles

Buick Century radio code 2001

I can get the first 3 numbers by pressing the 2&3 button, however I cant get a second set of ...

1999 Dodge Neon

Extremely hard to turn steering wheel p/s fluid full no visible leaks or damage to the ...

Power steering hard to turn

Extremely hard to turn steering wheel p/sl fluid full no visible leaks or damage to the ...

2004 jeep liberty front ...

I replaced my front drive shaft again and took it for test drive and it snapped again. Started ...

2001 Tahoe Sounds Like A ...

Just bought a 01 Tahoe seemed to run quiet at first then after a while when u first start it it ...

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? The Benefits

How Things Work

Anti Lock Brakes -What Does The ABS Light Mean

When wheel slip is detected during a brake application, the ABS enters antilock mode. During antilock braking, hydraulic pressure in each wheel hydraulic circuit is controlled to prevent a wheel from slipping. A separate hydraulic line and specific solenoid valves are used for each wheel. The ABS can decrease, hold, or increase hydraulic brake pressure to each wheel.

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Common Engine Codes

Throttle Position Sensor Code P0121, P0122 and P0123

The throttle position (TP) sensor is used by the powertrain control module (PCM) to determine the throttle plate angle for various engine management systems. The TP sensor is a potentiometer type sensor with three circuits: a 5-volt reference, a low reference, and a signal. The PCM provides the TP sensor with a 5-volt reference circuit and a low reference circuit.

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