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Thread: TPS spring loaded?
05-13-2012, 12:42 AM #1
TPS spring loaded?
Is the throttle position sensor spring loaded, or just an electrical range sensor? The high idle issue is back in the '99, and I was told to check to see if the spring actuates. It didn't. I haven't had time to get into the shop to check for codes or meter readings - just trying to build my case before I get there.
The tranny is hunting a bit, and both mufflers are blown out at the welds, so maybe a vacuum leak or no back pressure... I don't know.
All help appreciated.
1999 Chevy K2500 Suburban 350
K&N, reworked cai, Thrush cat-backs
Vinyl, cranks, floor shift, and rear air!
05-13-2012, 10:51 AM #2
- Join Date
- Mar 2007
- Grand Prairie, Texas
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I always thought the TPS was an electrical range sensor.
Idle will creep up a little with blown mufflers, no back pressure less force required to push the air through.
Hunting trans though isnt something you see with blown mufflers normally.
05-14-2012, 02:34 PM #3
Not sure about the sensor man. Sorry.Please Tell Your Boobs To Quit Staring At My Eyes
05-14-2012, 03:59 PM #4
You need to check the tps voltage .55 volts at closed throttle. At wot 4.50 volts ,and should get a good even voltage rise with no fluctuations
When opening throttle to wot. Also a bad tps will make trans erratic. You need to scan it see if any codes set.
I would also clean the maf sensor .RESIDENT NUT.....MY CLAIM TO FAME .....
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