Mechanics

CHEVY S10 SURGES BETWEEN 45-55 MPH

2010 Chevrolet Other

I have a 2000 chevy s10 2.2 liter auto with 97000 miles and when I drive it staying below 40 is fine and above 60 it's fine. However between 45 and 55 at a steady speed it surges. I changed the plugs, wires, and fuel filter, and I still have the problem.
Any ideas would be appreciated.
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Grumpyim
February 11, 2007.




Has the fuel filter been changed yet?

Tiny
CHEVYII
Feb 19, 2007.
Yes I changed the fuel filter, changed plug wires, spark plugs and it still surges.
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Tiny
Grumpyim
Feb 19, 2007.
Check engine light on or flash at all

Tiny
CHEVYII
Feb 19, 2007.
No check engine lights are on--transmission place said it was the transmission and wants to put in a trottle body kit for $450.

Tiny
Grumpyim
Feb 19, 2007.
Valvebody,

if that is the problem, if, that is a fair price, the pcm should still kick out a code at least p1870

Tiny
CHEVYII
Feb 19, 2007.
Would you possibly have any other ideas on what to check for to remedy this problem?

Tiny
Grumpyim
Feb 19, 2007.
Not really, its a weird problem, thats all I can come up with without looking at it, sorry

Tiny
CHEVYII
Feb 19, 2007.

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