1987 Ford Mustang coolant leak

COBRA78

MEMBER
1987 FORD MUSTANG
V8
2WD
MANUAL
210,000 MILES

I have a supercharged 5.0 mustang thats leaking coolant and its running down the x-pipe exhaust. I replaced the water pump and the radiator but its a constant drip. I cant look to see if it is a blown freeze plug, but I would imagine it would b something else before it was a plug. Any help would be very much appreciated! Thank you

Thursday, September 18th, 2008 AT 12:52 AM

3 Replies

RASMATAZ

MECHANIC
75,992 POSTS

If its not a heater hose, intake manifold leak-I would say its probably the freeze plug-double check and let me know

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Thursday, September 18th, 2008 AT 3:24 AM

COBRA78

MEMBER
2 POSTS

Ok so I checked the freeze plugs and they all look ok theyre just a little damp on the passenger side. I thought maybe it could be the heater core but it doesnt show any signs of being bad yet. All of the hoses look good and I cant see where it has been dripping from them. I belive it may be a blown head gasket because the motor is damp from the heads down from the water pump back. Any thoughts on this?

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Saturday, September 20th, 2008 AT 8:55 PM

RASMATAZ

MECHANIC
75,992 POSTS

Have it block and pressure tested-do the block first to pinpoint a combustion leaking into the cooling system or a gas analyzer to sniff for hydrocarbons at the radiator fill neck.

Pressure test: do not do a pressure test if there's leakage at the headgasket this might cause coolant into the cylinders and lock it up or bend a connecting rod if cranked thereafter. The headgasket should be repaired before doing the pressure test.

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Saturday, September 20th, 2008 AT 8:57 PM