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Old 10-19-2009, 01:12 PM
jackmalone2001 jackmalone2001 is offline
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engine runs strange when put in gear

Hello!

I have a 1999 Buick LeSabre with a 3.8l V-6 engine, 179,000 miles. I have noticed just lately when I put the car in reverse the engine runs strangely. I can start the car, no problem, runs smooth. I put it in reverse and the motor surges like it wants to stall. I put it in neutral, the surging ceases. I then put it back in reverse and no problems, smooth. This does not happen every time and there are no other performance issues. Other than the obvious, it has a lot of miles, do any of you have ideas as to why this is happening?

Thank you very much to all who reply!

Take care, Jack
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Old 10-19-2009, 01:27 PM
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HotZ28 HotZ28 is offline
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Re: engine runs strange when put in gear

It may be time to clean the TB, IAC, MAF & EGR if you haven't done so. Does this happen just when cold, or all the time?
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Old 10-19-2009, 01:30 PM
jackmalone2001 jackmalone2001 is offline
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Re: engine runs strange when put in gear

Hi HotZ28!

You have been a huge help with my Camaro! I have posted in the Camaro post about an engine swap there.

I have just noticed this problem over the last two weeks and we (in balmy Cleveland, Ohio) haven't been that cold. 40's most nights, nothing to speak of. I will look into the items you mention to see if they are in need of TLC.

Thanks again Z!
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