2003 Pontiac Grand Prix



June, 9, 2009 AT 6:43 PM

Engine Performance problem
2003 Pontiac Grand Prix 6 cyl Two Wheel Drive Automatic 80,000 miles

got a code to replace egr valve and did. It made it better but did not fix the problem, loss of power, dogs up hills and wont increase speed if givin to much gas.
could it be the covertor? Or what?

1 Answer



June, 9, 2009 AT 7:04 PM

Cat. Converter probably clogged or EGR passageway may be clogged with carbon build-up. Clean out the passageway and have converter flow tested.

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