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1991 Dodge Stealth intermittent hesatation-iddle sometimes

Tiny
PONTIAC121
  • MEMBER
  • 1991 DODGE STEALTH
  • 6 CYL
  • FWD
  • MANUAL
  • 12,500 MILES
Hi im a shop owner for over a year -i have over 13 years in the field and I got a customer car, a 1991 dodge stealth 3.0 dohc -stick-non turbo-alrite this is whats up, the car runs good no codes - I did a tune up, new plugs wires cleaned the throttle body, and a coil -it was arking,

it has a problem when on the highway in fifth gear when you put a load on the motor it feels like the throttle has a dead spot -it will clime in rpms a little the when it hits 2500 rpms it will jump and feel like it wants to take off-it felt like a bad tps sensor -so I tested the voltages and everything is, I even tried a new sensor -no luck- I thought it could be a mas air sensor - same thing -i tested the wiring and even tried the sensor -nope ---so I need help ! Were would you go next?
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Friday, May 7th, 2010 AT 6:27 PM

6 Replies

Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
When you cleaned the TB did you see any sign of wear? Plate move side to side or up and down (play)? Or a ridge worn into the horn?
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Saturday, May 8th, 2010 AT 8:16 AM
Tiny
PONTIAC121
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  • 4 POSTS
No signs of play -and no vacume leaks !
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Saturday, May 8th, 2010 AT 3:41 PM
Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Only thing I can think it could be is maybe a few bad injectors, Sticking open too long?
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Saturday, May 8th, 2010 AT 11:11 PM
Tiny
PONTIAC121
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  • 4 POSTS
But how would that cause the feeling like a bad tps under load?
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Sunday, May 9th, 2010 AT 8:03 PM
Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Pulse width is too wide(open too long) on one or more injectors, can cause cylinder balance problems, flooding out. Check all plugs for signs of fuel fouling.
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Tuesday, May 11th, 2010 AT 9:29 AM
Tiny
PONTIAC121
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No signs of fauling I changed the plugs wires and a coil pack 3 mths ago-

no vacume leaks I smoked the intake and no leaks -
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Saturday, June 5th, 2010 AT 10:10 PM

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