Question about 2002 Pontiac Grand Prix
G6 shaking when I slow down from high speed
Posted by Anonymous on
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Posted on Jan 02, 2017
Sounds like warped front disc brake rotors and/or out of round rear drums. Some also had rear disc brakes also. Have brakes inspected. Have steering and suspension looked at also.Loose steering or suspension wont cause a vibration but will exaggerate bad brakes or tires.Always be sure your vehicle can stop and steer safely! Hope this helps. Please rate me.
Posted on Jan 20, 2009
Check for runout in your wheel bearing hubs. You can also hit your e brake lightly and see if it shakes then. If it does, it is in the rear rotors which will also warp.
Posted on Mar 07, 2009
SOURCE: Rough idle only when in gear.
The Air Idle Control Valve (IAC) may be bad or dirty with carbon build up. Check for loose wire, remove and try to spraying it with throttle body cleaner to clean the carbon out and dry it with a hair dryer before installing.
The other thing to look for to is stuck EGR valve. same process as the (IAC) as to cleaning it too. If both are beyond cleaning then replace it.
You can go to Auto Zone and have the car scanned for any DTC codes which would indicate any problems with the (IAC) and EGR's performance.
The other thing to that would make the engine shake at low RPM's is bad spark plug and wire or low engine compression, but that would give you problems through out the whole engine's performance.
Good luck and hope this helps, Start with the (IAC) and EGR as to cleaning and scanning the engine.
Posted on May 28, 2009
SOURCE: sluggish engine pontiac g6
Sounds like a transmission issue, have the car scanned for ant transmission related codes. Most transmission shops will check to make sure your transmission is working 100% free of charge. With what you have described, almost sounds like you don't have 1st or 4th gear and your transmission is running on 2nd and 3rd gear. Easy fix if the 1st-4th solenoid needs to be replaced, or the wire harness has gone bad. Start with getting your car scanned and let me know if your transmission is starting on 2nd. Good luck
Posted on Jan 28, 2010
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