Question about 2003 Pontiac Bonneville
It is an Exhaust Gas recirculation valve. I sends controlled amounts of exhaust gas, back into the engine, to be re-burned. To replace it is simple, two screws, one electrical plug, pull it out and so on. But the right way to repair it is to hook the car up to a diagnostic scan-tool, look at data, run functional tests, run component tests on the valve, and physically inspect the valve for defects.
Posted on Nov 12, 2009
Egr = exhaust gas recirculation valve. if the valve itself has gone bad, you replace the whole thing
Posted on Nov 12, 2009
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Posted on Jan 02, 2017
SOURCE: bad egr valve
You can try cleaning it. Go to your local parts store and buy a can of brake cleaner. Remove the EGR valve and spray it into the valve and let it set 8 hours. Pour out the cleaner and clean the carbon off with a wire brush. Reinstall the valve and see if that helps. If not, you will have to buy a new one and it will not cost $316 if you DIY.
Posted on Oct 18, 2009
Remove the throttle body housing on the top of the intake, it is a 90 degree tunnel like small piece held by 4 small bolts, turn it over and look for two holes, these holes are for the EGR valve flow, they are probably plugged up with carboned crud, clean them out with the tip of a screwdriver if neccessary to remove all the crud, once its clean reinstall it and reset your check engine light, hope this helps, let me know
Posted on Dec 04, 2009
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