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Recent content by SonicWeaver
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I'm stumped! Help with high idle problem when purge valve open
** FIXED!!** The problem was the Dorman 911-231 Vapor Canister Purge Valve. I purchased it because reviewers on Amazon said it worked for their Expedition and the part is made in the USA. I had replaced the original twice with this valve and assumed it was functioning properly after the 2nd...- SonicWeaver
- Post #8
- Forum: 1st Gen - 1997 - 2002
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I'm stumped! Help with high idle problem when purge valve open
I used a smoke machine. Where was your throttle body leak? Replaced the PCV and double checked the elbow. The odd thing here is that if I disconnect the purge valve it idles perfectly and does not throw the 1506 high code. With it functioning the idle runs 300-400 higher when it's turned on...- SonicWeaver
- Post #7
- Forum: 1st Gen - 1997 - 2002
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I'm stumped! Help with high idle problem when purge valve open
Can someone tell me what the proper purge cycle is? After warm up and when idling in gear is turning on for ~15 second and then turning off for ~18 seconds. My RPMs go from around 600 to 900. The gas cap (which I have replaced with not change of symptoms) is making loud sucking noises in rhythm...- SonicWeaver
- Post #5
- Forum: 1st Gen - 1997 - 2002
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I'm stumped! Help with high idle problem when purge valve open
What wire harness...the purge valve wires? The valve does turn on and off so I'm guessing it must be fine but I will check for power at the connector pins.- SonicWeaver
- Post #3
- Forum: 1st Gen - 1997 - 2002
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I'm stumped! Help with high idle problem when purge valve open
Looking for some help with diagnosing a 1506 code on my '98 4.6 that appears to be caused when the purge valve is open. When the purge valve opens idle rpm jumps several hundred from around 600 or so to 900 while in gear (800 to 1100 in park) and stays high for anywhere from a few second to 20...- SonicWeaver
- Thread
- Replies: 9
- Forum: 1st Gen - 1997 - 2002