Throttle problems

163,000 MILES • 3.5L • V6 • 2WD • AUTOMATIC
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409SANTANA
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  • 14 POSTS
Car runs fine and strong but when a come to a turn, a light or a stop the car starts to buck. when i push the pedal and the just coast it feels that i don't have response it's idle fine, I have to stop the car put it on park and back to drive and it goes . For a while until today the car would drive fine from start but it get turn off and and back on it will do it again.
Nov 21, 2019 at 1:05 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,246 POSTS
Hi,

Have you checked the transmission fluid condition and level? If it is excessively low, it can cause this. Also, is the check engine light is staying on while the engine is running, have the computer scanned for codes. Most parts stores will scan it for free.

Let me know.

Joe
Nov 21, 2019 at 9:21 AM
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409SANTANA
  • MEMBER
  • 14 POSTS
No i haven't checked the transmission and only had a u1000 code for bus communication problems. i change the unified ac amplifier (it had 4 cents in it and fried the module).
Nov 26, 2019 at 1:02 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,246 POSTS
Hi,

Although the code is related to the can communication, it can be tied directly the the transmission control module (TCM). See the attached picture.

Let me know if you have access to a consult 2 scanner or equivalent .

Take care,
Joe
Nov 26, 2019 at 9:03 AM
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