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Reduce engine power

Tiny
STERLINGJ
  • MEMBER
  • 2003 CHEVROLET SILVERADO
  • 6.0L
  • V8
  • 4WD
  • AUTOMATIC
  • 220,000 MILES
Reduce engine power come on it won't go over 20MPH. Replaced throttle body sensor as well as ECM, checked all wires. Nothing is loose. I don't know what else to do.
Wednesday, April 6th, 2022 AT 5:44 PM

2 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,755 POSTS
Are there any diagnostic trouble codes present? A reduced power indication can be caused by a few different things. That's why I recommended scanning. For example, an engine temperature sensor, brake-related issue, and so on can set it. Let me know if there are codes so we know what direction to proceed.

Let me know.

Joe
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Thursday, April 7th, 2022 AT 2:03 PM
Tiny
STERLINGJ
  • MEMBER
  • 2 POSTS
P1518, I do believe.
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Thursday, April 7th, 2022 AT 2:12 PM

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