cars acting wierd

greyhorse25 · March 7th, 2011, 10:34 PM

so just today i noticed my car acting up. when i went to 2/3 throttle the car would like hesitate to accelerate and when it did accelerate the car shaked wierdly, also the rpms were bouncing around. also, the shift points were not normal and i dont know whats causing this. any ideas?

mustangmike! · March 7th, 2011, 10:37 PM

check engine light ?
If so go get it ran.
Missfire maybe ?

greyhorse25 · March 7th, 2011, 10:48 PM

theres no engine light yet, it might be a misfire idk, how can you check for misfires?

Mr. Red Pony · March 7th, 2011, 11:00 PM

Sounds like the TPS. Check to see if its plugged in. (on the side of the throttle body)

If it is plugged in, it sounds like it has a bad spot in the rheostat. Like it is still in parameters to keep from setting a code, but off enough to be wrong. This can be checked with a DMM to check resistance within the circuit while opening the throttle slowly and checking for gaps or jumps in resistance.

March 7th, 2011, 10:34 PM	#1
greyhorse25 Newbie 02 v6 Join Date: Dec 2010 Location: tx Posts: 10 iTrader: 0 reviews	cars acting wierd so just today i noticed my car acting up. when i went to 2/3 throttle the car would like hesitate to accelerate and when it did accelerate the car shaked wierdly, also the rpms were bouncing around. also, the shift points were not normal and i dont know whats causing this. any ideas?

March 7th, 2011, 10:37 PM	#2
mustangmike! I Post Entirely Way Too Much 2004,1994,1967 14.37 @ 96 Join Date: Aug 2008 Location: Texas Posts: 6,015 iTrader: 1 reviews	check engine light ? If so go get it ran. Missfire maybe ? __________________ 227whp N/A V6 Now w/ 8th Mile 8s ! How To Jmod Your Late Model 4R70W

March 7th, 2011, 11:00 PM	#4
Mr. Red Pony Resident badass 01 Built V6 (3.9) 13.91 @ 99.1 N/A Join Date: Jan 2010 Location: Lawton, Oklahomo Posts: 6,788 iTrader: 10 reviews	Sounds like the TPS. Check to see if its plugged in. (on the side of the throttle body) If it is plugged in, it sounds like it has a bad spot in the rheostat. Like it is still in parameters to keep from setting a code, but off enough to be wrong. This can be checked with a DMM to check resistance within the circuit while opening the throttle slowly and checking for gaps or jumps in resistance. __________________ 271rwhp N/A V6 The Name is Danny. I'm a GM Technician. Suck it.

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March 7th, 2011, 10:48 PM	#3
greyhorse25 Newbie 02 v6 Join Date: Dec 2010 Location: tx Posts: 10 iTrader: 0 reviews	theres no engine light yet, it might be a misfire idk, how can you check for misfires?

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