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2nd EGR Valve in 6 months?
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lachance4107
New User
Apr 8, 2014, 8:14 AM
Post #1 of 3
(1536 views)
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2nd EGR Valve in 6 months?
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Hi, I have a 2001 GMC Yukon. An issue with it started back in October 2013 where after 30 or so minutes of driving (Assuming when the engine gets to a certain temp. maybe?) it will stall out if I let it idle under 1k RPM. So anytime I'm at a stop light or making a turn or going under 25mph my solution has been to drop it into neutral (Even though its an automatic) and rev it up to a constant 1.5 - 2 RPMs to keep it from stalling on me. It also goes through a full tank of coolant in about 2 months, not sure if that's related or there is just a minor leak. In November of last year I replaced my EGR valve and things seemed to be fine until today when the same problem started again today. I would greatly appreciate any help as the way I have to improvise, although I'm being as soft as I can with it, is probably beginning to harm the transmission. Please help!
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Hammer Time
Ultimate Carjunky
/ Moderator
Apr 8, 2014, 8:32 AM
Post #2 of 3
(1525 views)
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Re: 2nd EGR Valve in 6 months?
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What happens with these EGR valves is they are not defective. The engine builds up carbon in the exhaust manifold and it breaks off in chunks and gets caught in the EGR pintle as it passes through. Remove trhe valve and examine the pintle to see if a chunk of carbon is holding it open.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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lachance4107
New User
Apr 8, 2014, 8:55 AM
Post #3 of 3
(1519 views)
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Re: 2nd EGR Valve in 6 months?
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Great, just found out I don't have the right size socket with me at the moment to remove the valve. Thanks for the advice though, I'll be checking that out asap
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