2005 Chevrolet Cobalt Acceleration

Tiny
NRH641
  • MEMBER
  • 2005 CHEVROLET COBALT
  • 125,000 MILES
Car will not accelerate past 50mph. It is at an auto mechanic shop now and they cannot diagnose the problem. They have tested the catalytic converter, torque converter, throttle position sensor, crankshaft sensor, and the coil pack. They have had the car for over a week now.
Thursday, July 18th, 2013 AT 12:30 PM

3 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,053 POSTS
Have they checked for vacuum leaks on or around the intake? Have they tested fuel pump pressure to ensure it is within the manufacturer's specs?
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Thursday, July 18th, 2013 AT 6:55 PM
Tiny
NRH641
  • MEMBER
  • 2 POSTS
Thanks for answering! They have checked all hoses and the fuel pump. They were checking the fuel injectors next. I haven't heard anything back yet.
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Friday, July 19th, 2013 AT 1:58 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,053 POSTS
Let me know what they find.
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Friday, July 19th, 2013 AT 6:32 PM

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