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2001 Buick Park Avenue Surging

Tiny
DAN GROSS
  • MEMBER
  • 2001 BUICK PARK AVENUE
2001 Buick Park Avenue 6 cyl Front Wheel Drive 109000 miles

Where to look for the cure to "surging"? Since the weather has turned much colder, the problem has gotten more severe. Occurs under light load (up hill or light acceleration) and only between 1500 to 2000 rpm. Usually cured by "punching it" to kick down the transmission and jump the rpm. Not real fuel efficient, though. Fuel filter changed at the last service (~106K). Suggestions?

Thanks,

Dan
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Wednesday, December 10th, 2008 AT 8:45 PM

1 Reply

Tiny
BLUELIGHTNIN6
  • MECHANIC
  • 16,542 POSTS
Hello
Thanks for the donation

The EGR valve may be cycling opening and closing. Replacing the valve may cure the surging. It is also possible, if your car is equipped with air conditioning, that the air conditioning compressor may be cycling on and off, lugging the motor.

Hope this helps.
Thanks for using 2carpros. Com!
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Thursday, December 11th, 2008 AT 1:58 AM

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