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Old 20 Dec 2010, 10:31 pm
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Default 95 civic vacuum leak?

i have a 95 civic and it has a vacuum leak at idle... i am very mechanically inclined but this one is getting me stumped... my motor blew up about a week ago and i replaced it and vacuum leaks still there, i was thinking it was either the iacv or brake booster because when i replaced the motor it came with an iacv but it wasn't bolted up. i would think its that but for some reason when i unplug my tps it goes away... i spoke to another mechanic smarter than i am and he thinks my wiring from the tps might be at fault? the vehicle had a remote starter when i bought it so i thought that was it... need feedback fast im planing on driving to Florida soon and dont want a vacuum leak















when i test the iacv by plugging the hole for it on the throttle body it goes away and idle lowers, same thing with fast idle valve, when i plug both it doesn't stall but lowers the rpm a bit, same thing if i cover the whole throttle body... my buddy ran his motor without a cover and it didn't do it so im not thinking valve cover gasket
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Old 20 Dec 2010, 10:46 pm
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sounds stupid but check your valve cover gasket if bad can act like vacuum leak
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Old 20 Dec 2010, 11:01 pm
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Replace valve cover gasket































Inspect all hoses































Try cleaning the IACV and any other types of air boost valves































If all else fails try replacing a couple of those parts with salvage parts and see if anything gets better.
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