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Old 09-16-2002, 01:17 PM
prprjp prprjp is offline
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Join Date: Sep 2002
Location: Winston-Salem, NC
Posts: 71
engine speed wavers during motion

Dear All:

I have a problem with my ’86 SL560. The car is fine when sitting still at idle, but if I take my foot of the gas when moving at 30-40 mph (going down a hill for instance), I have noticed that the tach needle wavers and you can fell the engine slowing and surging, maybe by +/- 300 rpm.

Any suggestions? The car only has 65K on the clock but wasn’t been fully serviced by the previous owner.

Thanks for any help,
Ryan Potts
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