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Old 06-22-2010, 06:57 PM   #1
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Join Date: Feb 2010
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EGR Question

Ok this is strange i have a weird thing going on with my car it has had a slight stumble when cruzing at any speed , it doesnt do it at idle or when taking off ive checked for vacume leaks, none ,new plugs, wires ,fuel fillter earlier this year,fuel press checks ok, so i take off the vacune line to the egr valve and run it and the stumbles gone ,long storie short i replace the egr valve and the egr vacume seliniod switch thinking it was bad maybe it was leaking through and opening the egr valve at the wrong time but the stumble is still there wtf , i take off the vacume line to the egr valve and the car runs fine i get a 0401 code because the egr isnt opening and theres no flow through it, i pulled the 2 lines going to the egr flow sensor and there fine. i cant get the tube off that feeds the egr to check it for cracks, if it were cracked it might be sucking air when the egr valve opens causing the stumble.thats the only thing i can think of if any one else has any idea let me know please thanks
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