Problems with return-to-idle speed
10-24-2006, 10:00 PM
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Join Date: Jan 2006
Location: League City, TX
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Car: 90 Formula -- tot resto in progress
Engine: 350
Transmission: 700R4 w/ 2500 stall, by Owen @ ARD
Axle/Gears: 3.23 posi disc
Problems with return-to-idle speed
The third-gen project is a work-in-progress, but right now I have
a problem with the daily driver I'm hoping someone can assist with.
The vehicle is a 99 Tahoe, w/ 5.7l Vortec v8. The problem is that
when decelerating, the idle remains high (~1200) rpm, until the
vehicle is totally stopped. The effect is increased braking force
needed, and noticable 2-1 downshifting. I just replaced the throttle
body with an upgraded rebuild unit that I hoped would solve this
problem, but to no avail. (XtremeFI in Austin TX, did the rebuild,
which otherwise improved overall performance, as expected.)
Any suggestions?
thanks,
kk
a problem with the daily driver I'm hoping someone can assist with.
The vehicle is a 99 Tahoe, w/ 5.7l Vortec v8. The problem is that
when decelerating, the idle remains high (~1200) rpm, until the
vehicle is totally stopped. The effect is increased braking force
needed, and noticable 2-1 downshifting. I just replaced the throttle
body with an upgraded rebuild unit that I hoped would solve this
problem, but to no avail. (XtremeFI in Austin TX, did the rebuild,
which otherwise improved overall performance, as expected.)
Any suggestions?
thanks,
kk
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