2006 Buick Rendezvous engine miss firing (car bucking)

2006 BUICK RENDEZVOUS
139,000 MILES • 3.6L • V6 • FWD • AUTOMATIC
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ST1ROGUE
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Engine miss firing (car bucking) between 45 to 60 MPH (or 1500 to 2000 RPM) in overdrive if I put it in D3 to drive engine RPM are at 2000 + and I do not feel any bucking or miss firing, have switched out ING. solenoid and the PTrain solenoid still have problem, have you come across this before?
Mar 25, 2014 at 9:49 AM
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SATURNTECH9
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Any codes in the computer? Also have you tried unplugging the egr to see if the problem goes away?
Mar 25, 2014 at 8:32 PM
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ST1ROGUE
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I think that it happens so quick and short period of time that the computer doesn't perceive it is a critical error, because I don't have a check engine light, the only one I have had was a loose gas cap.
Mar 25, 2014 at 9:13 PM
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SATURNTECH9
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I have seen bad egrs not set codes and have symptoms like that. That's why I asked if you tried to unplug the egr valve to see if the problem goes away.
Mar 25, 2014 at 10:08 PM
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ST1ROGUE
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I will give it a their and get back with the result.
Thank you
Chet
Mar 26, 2014 at 2:35 PM