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#1 |
Registered Member
Join Date: Nov 2002
Location: Panama City Fl.
Posts: 152
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![]() just picked my car up from the performance shop today and he said he thinks its a vaccum leak.....it sqeals pretty loud, is it possible to hear a vaccum leak i belive the leak is right there tween the lower and upper plenum........other than that she runs great......any help!!!
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#2 |
Registered Member
Join Date: Jan 2001
Location: Moline Il
Posts: 901
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![]() With the engine idling, spray some flammable brake cleaner in the area that you think is leaking. If the idle raises up, then you have a leak.
Andy
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88 coupe 91 LX NMRA Pure Street 5120 |
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#3 |
Registered Member
Join Date: Aug 2002
Location: Rochester
Posts: 553
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![]() I wouldn't spray brake fluid, it will kill your sensors in a heart beat. A little propane is best, or spray some water from a water bottle. when you mean squeal, how loud? a loud leak would indicate a big leak, which the car shouldn't run well if at all.
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#4 |
Registered Member
Join Date: Nov 2002
Location: Panama City Fl.
Posts: 152
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![]() it sqeals pretty loud...i can hear it from inside of the car driving it.....but other than that it runs farely well....it seems to quiet a little when i accelerate....but at idle its farely loud...so you suggest water...and if the idle raises its a vaccum leak ?? thanx guys
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#5 |
Registered Member
Join Date: Aug 2002
Location: Rochester
Posts: 553
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![]() if you spray water the car will stumble. if its pretty loud, sounds like it could be something else.. a leak that loud would cause the car to not run. thats me 2 cents.
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#6 | |
Registered Member
Join Date: Jan 2001
Location: Moline Il
Posts: 901
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![]() Quote:
Which sensors are you referring to that it will kill in a heartbeat? I must be getting real lucky everytime I do this. ![]() Andy
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88 coupe 91 LX NMRA Pure Street 5120 |
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#7 |
Registered Member
Join Date: Nov 2002
Location: Panama City Fl.
Posts: 152
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![]() alright man thanx for the info.....il try something !!
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#8 |
Registered Member
Join Date: Aug 2002
Location: Rochester
Posts: 553
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![]() Any brake related products are not to be burned in a motor. If you look on cans, and cleaners, you'll see it says, " safe for 02 sensors " like on fuel injector cleaner etc. etc.. there is a reason for that. it leaves residues that damage the sensors. unless its TBI cleaner, you should never burn them in a EFI car or anything with 02 sensors, or intake sensors etc. Thats a general rule with all cleaners. like you shouldn't use gum out on a efi car etc.
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#9 |
Registered Member
Join Date: Jan 2001
Location: Moline Il
Posts: 901
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![]() The amount of brake cleaner required to find a vacuum leak wont damage squat.
Andy
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88 coupe 91 LX NMRA Pure Street 5120 |
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#10 | |
dude5l
Join Date: May 2001
Location: Grande Prairie, Alberta, Canada
Posts: 603
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![]() Quote:
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Good luck! Brad R. 1992 L.X. 5.0 coupe MODS: A few little bolt ons ![]() New Best time ...11.60 @ 128 mph @ 2000+ ft altitude. Rice Haters Club member #39 Users rides #2542 |
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#11 |
Registered Member
Join Date: Aug 2002
Location: Rochester
Posts: 553
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![]() you can spray it if you want, I would never spray a product down your intake, your just adding more variables to the mix down the road. My 2 cents.
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#12 |
Moderator
Join Date: Sep 1998
Location: Grand Rapids, Michigan, USA
Posts: 1,001
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![]() Just spray some Natty Ice on the gasket area. If your car gags, it's a vacuum leak. If not, you haven't wasted much of anything to find out. End of discussion.
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Capri306, Moderator The Mustang Works Online 1979 Mercury Capri 1987 5.0L Mustang LX Notchback 1993 5.8L Eddie Bauer Bronco ![]() |
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