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no, a bad freeze plug will leak antifreeze. i would guess the hissing noise *might* be a exhaust manifold gasket leak or a exhaust pipe that is loose or leaking. the easiest way to locate a leak like this (hissing) is by using a length of rubber hose 3-4 feet long and *carefully* while the engine is running holding one end to your ear move the other end around the engine or suspected areas until you hear the hissing noise thru the hose clearly. then you've located the leak. do not use a metal brake line to do this...you might hit a moving part and get skewered or touch a sparkplug wire and become aware of what a bug feels when it hits a zapper :) good luck.
What else can I help you with?
What size are freeze plug?
They vary. The year, make, model, engine and freeze plug location info is necessary to answer.
Can the freeze plug be re-used?
Do not attempt to reuse a freeze plug. They are pressed in to make a tight seal and will not seal properly if reused.
1994 Honda Accord freeze out plug?
no such thing,freeze in plug
What is a better type of freeze plug?
The steel freeze plug is better than a brass freeze plug. This is because the steel freeze plug can withstand high temperature from the engine block. Moreover, the steel freeze plugs usually fit very well.
If you need a freeze plug can your car run hot?
I think you would know if you needed a freeze out plug for you would be losing coolant & losing coolant would make your ride run hot.
What is the best freeze plug rubber or the brass freeze plug?
Steel or brass freeze plugs are the best ones,rubber freeze plugs are just for temporary
Freeze plug 1997 Ford Escort?
how many freeze plug at 1997 ford escort
How do i change the freeze plug on driver's side on a 2.8 v6 engine on a 1988 ford bronco 2 xlt?
Locate the bad freeze plug and remove parts that impede the facilitation of reaching the plug. Take a screwdriver and hammer out the old plug. Replace the plug with either a regular plug (a socket that fits the inside of the freeze plug helps) or a rubber expanding freeze plug.
How do you replace a freeze plug in a 1995 Ford Aerostar?
take a large screw driver and a hammer tap the old freeze plug in the block,replace it with a rubber freeze plug.tighten the rubber freeze plug with a wrench..the metal freeze plug that you pushed inside the block will not hurt anything..hope this helps!!!!
Freeze plug location 1996 Chevy lumina 3.1 V6?
Where is the freeze plug. On a 1996 lumina3.1v6
Where are the freeze plug located at?
where is the freeze plug located on a 1992 Chevy beretta and I need a picture on it also
Where is the freeze plug 94 Nissan pick up?
where is the freeze plug 94 nissan pick up?
