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How do i do a throttle body relearn on a 08 silverado 1500

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  • Cars & Trucks Master
  • 442 Answers

Try clearing codes with hand held and let it relearn on its own ,you will have to drive it for awhile for relearn .it may not idle at first

Posted on Feb 10, 2014

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6ya6ya
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Posted on Jan 02, 2017

emissionwiz
  • 75066 Answers

SOURCE: High Idle Issue

Sounds like the idle speed control motor is stuck, this could have been caused by the cleaning.

Posted on Oct 28, 2008

  • 3 Answers

SOURCE: 1992 Silverado backfiring through the throttle body

you could put the pickup on a cylinder pressure test and see if you have a bad valve causing the engine to pop.
you could have a bad wire or spark plug.
the timming chain could of went off a cog on the timming sprokets causing to pop.
gettin to much gas could cause it to.

Posted on Jan 23, 2009

rad64us
  • 45 Answers

SOURCE: Where is the Fuel Pressure Regulator on a 1996

on the fuel injector line

Posted on Jun 30, 2009

emissionwiz
  • 75066 Answers

SOURCE: 1996 1500 Silverado V6 4.3 gas mileage.

for better freeway mileage a low back pressure exhaust will help, also run tires at max pressure, this is around 45 PSI, in town there is little you can do.

Posted on Sep 29, 2009

Testimonial: "Thanks for the advice, I didn't know about the low back pressure exhaust system, I'll try it out."

ftw1952
  • 10319 Answers

SOURCE: changed the throttle body in my 2008 silverado

the tps sensor needs to be adjusted to 1.5 volts

Posted on Mar 07, 2010

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There are a lot of good videos on YouTube to help with this. Although most are for the 5.3L engine the process and procedures are the same. The hardest and most time consuming part is removing the top cover and all the air induction tubing. As long as you have the time, skills and patience to do your own work this is not a terribly difficult task. With hourly rates as high as $125 hr I do all my own maintenance and use YouTube videos all the time. This one will give you a good idea of what's involved. Good luck!
https://www.youtube.com/watch?v=4IrL0VtxcC4
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Perform Throttle Relearn' with scanner. If relearn shows 'Failed' or 'Not Completed', possible the throttle body is bad. Not unusual for early T/B to fail in this manner.

Do not return to those two mechanics. Any decent import or Audi mechanic will have seen this before. Sometimes cleaning the throttle bore and plate will resolve this problem. Your freindly local parts store ( FLAPS.) will have throttle body cleaner on the self and then all you need is an old tooth brush and some cloth.

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Sounds like you have a dirty throttle body. This truck has whats called "drive by wire". There are no throttle cables. If you remove the air intake tube you can carefully clean with some carb cleaner and a rag. Reinstall the tube and let it idle for a few minutes so the computer can relearn the base idle. If this does not work you may have a defective throttle body.

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