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.


Latest Articles

Car and Truck OBD Code List ...

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

Car and Truck ABS Trouble ...

View a list of ABS brake computer trouble codes and their descriptions. C1214 Brake Control Relay ...

Airbag (SIR) System Computer ...

The Supplemental Inflatable Restraint (SIR) system supplements the protection offered by the driver ...

Dodge Caravan Surging And Dies

I have a 99 dodge 6 cyl caravan...just got a tune-up and it started surging and would die but ...

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? The Benefits

How Things Work

Air Conditioning System Operation

The A/C system provides the following features:

Cooled or dehumidified air for the comfort of the occupants
Power ventilation
Windshield defrosting
Side window defrosting

During most operating conditions, outside air enters the vehicle in the following manners:


Common Engine Codes

Evaporative Emissions Leak Code P0440 - P0455

P0440 - P0455
The control module tests the evaporative emission (EVAP) system for a large leak. The control module monitors the fuel tank pressure (FTP) sensor signal to determine the EVAP system vacuum level. When the conditions for running are met, the control module commands the EVAP canister purge valve OPEN and the EVAP vent valve CLOSED .