87 5.0 TPI high idle at idle/cruise - Third Generation F-Body Message Boards

seventy77 · 05-06-2009, 06:36 PM

The throttle sticks during cruising,and idling.(off and on) If i tap the gas pedal it comes down..Any clues?? I've changed the TB gasket,the intake runner gaskets,cleaned out the TB as best as i could,egr gasket,and checked for vaccum leaks....Still didn't help..

Thanks

HOMEBREWED1986 · 05-06-2009, 06:45 PM

i have the same issue

seventy77 · 05-07-2009, 06:25 PM

Yea it sucks! Pisses me off.I also had changed the thermostat,and temp sensor.Want to try change 02 sensor,if i can get loose.If you find out anything.Let me know please.

robertk6695 · 05-09-2009, 07:18 AM

I have had the same problems and i have justed changed the O2 and throttle position sensors and it has made a huge differance especially when i changed the tps.
I hope this is some help.

seventy77 · 05-09-2009, 10:10 AM

Cool,thanks for info..The IAC on mine was new last year..I put a TB off a 350 on last n.It seemed to be better,but only time will tell.Maybe my TPS is bad..