Author
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Topic: vac lines/valve issues
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TwoTone91GT
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Member # 7254
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posted
how would your car react if there is vac leaks? and how would your car feel if a valve was not firing correctly?
Posts: 469 | From: Elk Grove,Ca | Registered: Nov 2006
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JohnB
Tech Moderator
Member # 969
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posted
Vac leaks cause high idle if it's a small one and won't run very well if it's a large one. As for the valve, it doesn't fire...it closes the cylinder off during the combustion process. If it isn't closing/seating correctly, you may have a dead cylinder.
-------------------- 1965 Shelby Cobra 1993 Cobra 2012 F150 Raptor 2020 GT500
Posts: 6523 | From: Orlando FL/Redding CA | Registered: Mar 2002
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TwoTone91GT
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Member # 7254
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posted
Thanks so what should I do?
Posts: 469 | From: Elk Grove,Ca | Registered: Nov 2006
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93ReefBlue5.0
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Member # 5780
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posted
you haven't really described your problem. based on what jonh b said you may have a stuck valve or some vacuum leaks? whats the car doing that bothers you?
Posts: 1535 | From: Sacramento, CA | Registered: Jun 2005
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TwoTone91GT
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Member # 7254
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posted
anytime i push my car pass 4500 rpms it seems to skip as i pick up and backfiring at the same time and its really bothering me and there are times when i would disengage the clutch and go into my next gear or maybe neutral and my car would completely stop
Posts: 469 | From: Elk Grove,Ca | Registered: Nov 2006
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