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New EGR Valve Sticking
Topic Started: Jun 2 2018, 01:38 PM (183 Views)
highwayrunner
New Member
[ *  * ]
Hey everybody, I have a 96 5 speed 4 cylinder 225k. I have been trying to get the EGR working properly after it had been clogged for a long time. The EGR valve is new, I have no check engine light, but almost every single time the valve pulls all the way in after driving on highway for a while, it does not release, causing it to idle rough or die when I exit highway. All I have to do is disconnect the top hose and *pop*, it's fine again. Is there any other possibilities besides the solenoid? I am now pretty sure I wasted money on new EGR and would like to not continue guessing.

Thank you.

EDIT: i'll add i dont see it moving at all when looking at it and revving engine.
Edited by highwayrunner, Jun 2 2018, 02:44 PM.
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geogonfa
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There is a EGR vacuum pot that looks like a saucer with 2 small vacuum lines coming out each side and one large one at the bottom...
You can twist the two pieces to separate it, and there is a filter inside...
Try cleaning it...
Test it while its out...
Go here and look at page 2-3:
https://docs.google.com/file/d/0ByZnrvyffe1KNFFadThsMTRpYU0/edit
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highwayrunner
New Member
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geogonfa
Jun 2 2018, 02:54 PM
There is a EGR vacuum pot that looks like a saucer with 2 small vacuum lines coming out each side and one large one at the bottom...
You can twist the two pieces to separate it, and there is a filter inside...
Try cleaning it...
Test it while its out...
Go here and look at page 2-3:
https://docs.google.com/file/d/0ByZnrvyffe1KNFFadThsMTRpYU0/edit
yeah it does look like it has to do with the transducer. i bypassed following this thread and we have movement! Thankyou.

http://geometroforum.com/single/?p=279689&t=3344784
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geogonfa
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Luckily they still are available new if you can't find a good used one:
Rockauto:
STANDARD MOTOR PRODUCTS VS134
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ptcapboy


and be sure to clean all your passages from the exhaust manifold to the throttle body if you haven't already-
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Mrbreeze


I have a?, Does or is your car throwing any codes? I'd be curious to know..
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Dystopiate666
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Tree Banger

Is it possible you have the EGR hooked up to a constant vacuum source?
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highwayrunner
New Member
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Yeah I did end up getting EGR code and it is possible I had vacuum wrong. I was extremely careful to follow FSM and seems ok so far now with new transducer. Thanks again.
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Mrbreeze


Yet another satisfied GMF customer, I love this place...
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