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Tiny
YUKON99
  • MEMBER
  • 1999 GMC YUKON
I have a 99 yukon 5.7L and it s got a idle problm. I put plugs and cables and clean the fuel system and change a bad injector and I still got low rpms and shaking in a stop
Wednesday, March 16th, 2011 AT 9:43 PM

7 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check the idle air control valve and EGR/PCV valves
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Wednesday, March 16th, 2011 AT 9:50 PM
Tiny
YUKON99
  • MEMBER
  • 9 POSTS
Where is the EGR located? Is it normal for the distributor cap to move from left to right easily? Cause it moves that easy.
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Friday, March 18th, 2011 AT 12:56 AM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
It shouldn't do that suppose to be locked in place by clip/screw
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Friday, March 18th, 2011 AT 12:59 AM
Tiny
YUKON99
  • MEMBER
  • 9 POSTS
Right I know that cause is common sense. But this one moves, I notice it when I change the spark plug cables. What could be the symptoms that it can make
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Friday, March 18th, 2011 AT 1:09 AM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
If its moving when you grap a hold on the distributor housing and turn it either way-the hold -down bolt is loose-
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Friday, March 18th, 2011 AT 1:12 AM
Tiny
YUKON99
  • MEMBER
  • 9 POSTS
Oh I check it but where is the egr located
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Friday, March 18th, 2011 AT 1:15 AM
Tiny
YUKON99
  • MEMBER
  • 9 POSTS
Ok! I check it and is fine. But I find out that the distributor cap was loose and then after checking it I found out that the things that hold it are broken and is not set right. But also when I pull a spark plug cable is sound like the spark is goin back where the distributor is. Could that be the problem?
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Saturday, March 19th, 2011 AT 9:08 PM

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