Throttle is stuck

1998 CHEVROLET SILVERADO
231,221 MILES • 5.7L • V8 • 4WD • AUTOMATIC
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SLBRIGGS0330
  • MEMBER
  • 2 POSTS
The throttle in my truck is stuck wide open 90% of the time. Sometimes it will go to normal, but usually it's stuck. When I say stuck open I mean I can climb hills without pushing on it and going in reverse makes me nervous sometimes. (between 15-35 mph). I ended up getting the TPS changed while I was at work on day. And of course just like I thought it wasn't that. I'm going to clean the throttle body today, but is there something I'm not considering? This is taking a toll on my brakes as well, but I'll worry about that later.
Jan 15, 2019 at 6:00 PM
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ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
Good morning,

re right with your thought. I would start there and see if it continues.

If it does, then it is time for a throttle body.

https://www.2carpros.com/articles/throttle-actuator-service

Roy
Jan 15, 2019 at 7:39 PM
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SLBRIGGS0330
  • MEMBER
  • 2 POSTS
Thank you for your quick response, I appreciate it. And I'll let you know how it works out.
Jan 15, 2019 at 9:03 PM
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ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
You are welcome.

Always glad to help.

Roy
Jan 15, 2019 at 9:05 PM
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