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Username Post: EGR issue        (Topic#364411)
xstuntman 
Poster
Posts: 89

Loc: west Texas
Reg: 04-13-09
02-20-21 09:12 PM - Post#2814765    

Chased a rough idle today and fixed a couple possible issues. I did find the EGR adapter (1406 equipped) just barely loose on one side with the bolt being slightly too long. BTW the EGR has been non functioning and just there to pass visual inspection.
Buttoned it all up and now it runs great. I don't see how it could have caused a rough idle since it was never functioning or am I wrong?



 
gchemist 
Member #271 Senior Chevytalk Moderator
Posts: 25376
gchemist
Loc: Austin, TX 78748
Reg: 05-09-00
02-21-21 05:24 AM - Post#2814776    
    In response to xstuntman

If bolts were different lengths, the longer bolt side was probably not sealed completely. Extra air through the EGR valve will cause idle issues.

'83 Silverardo XST - ZZ4 powered
'95 Jimmy SLT (Bought @131,814)
'96 GMC Jimmy LS Ret. @236651 miles
'08 GMC Acadia 3.6L SLE


 
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