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i have a 2000 gmc seirra 5.3

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Old Mar 3, 2008 | 07:19 PM
  #1  
romirom's Avatar
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Default i have a 2000 gmc seirra 5.3

My truck just started acting up you can crank it up and it will idle fine but if you drive it and stop and put it in park or neutral it idles up to about 1 and you can cut it off and on a few times and it will stop what is the problem
 
Old Mar 4, 2008 | 08:37 AM
  #2  
jcbst12's Avatar
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Default RE: i have a 2000 gmc seirra 5.3

Could be:

* AIC gone bad
* PCV clogged or stuck
* Vacuum leak
* EGR but I doubt it
 
Old Mar 4, 2008 | 07:10 PM
  #3  
romirom's Avatar
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Default RE: i have a 2000 gmc seirra 5.3

some body told me that it was the throttle position sensor
 
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