20 Most Recent 2006 Pontiac Grand Prix - Page 8 Questions & Answers

Check coolant level and strength ,thermostat,coolant sensor and temperature sensor,171 dirty fuel filter,dirty MAF sensor,bank 1 sensor 1 O2,PVC valve,vaccum leak,exhaust ,you can try smok test.

It might be a partially clogged fuel filter. It should be changed every 30,000 miles.

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I don't have access to a car right now BUT would think that MAYBE it's how it was designed to work. Why? so while parked and or children playing inside car while stationary and key off, out of ignition wouldn't drain battery by constantly pressing the brake pedal, just sayin. Anyway Good Luck.

YOU HAVE TO REMOVE CRANKSHAFT HARMONIC BALANCER TO REPLACE CRANKSHAFT SENSOR.ITS LOCATED BEHIND IT.YOU NEED A HARMONIC BALANCER REMOVAL AND INSTALLER TOOLS.

You should first check the fuse, followed by checking the fan relay and fan switch, if you are able to use a volt/ohm meter, simply chase the circuit and test each component.

horn may be shorted internally. Try pulling the connector off the horn, put in a fresh fuse, see if it blows.

If it still blows, you have a short in the wiring or the relay. If there is no obvious short in the wiring, change the relay.

If the fuse doesn't blow with the horn disconnected, replace the horn.

Probably needs a new coil pack

check all fluid levels and engine temperature . Run fault codes to determine the sensor/s that are putting the engine/ gearbox in safe mode.

What part of the suspension is bad?