Leaking coolant
04-03-2012, 06:21 PM
#11
5th Gear Member
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Join Date: Aug 2005
Location: SF Bay.
Posts: 3,035
While you are doing the job you could replace the spark plugs and cop boots. Do a coolant flush and clean the top side of the heads real good along with the throttle body and injectors. As far as going with the performance intake I wouldn't do it unless I had the money to go with a larger tb, injectors, and fuel pump. Thats my 2¢ maybe someone else will chime in.
04-03-2012, 06:24 PM
#12
Join the club! Mine did the same thing.
https://mustangforums.com/forum/4-6l...ml#post7888354
BEFORE you do anything, you will need to empty out some coolant out from the bottom of the radiator. To do this, use a 19mm socket and locate the drain plug on the passenger side of the car. Loosen the plug a little bit and let about a gallon or so of coolant drain out (I don't know if less would be OK but I drained out more to be safe).
Today I was able to remove the thermostat housing to get to the thermostat and the old rubber o ring that was on it.
The housing was stuck but what I did was take a flathead screwdriver and a hammer/mallet and tapped at the base of the housing. Eventually, the housing broke free from the intake manifold.
I replaced the old o ring with a new one (costs a few dollars if that).
https://mustangforums.com/forum/4-6l...ml#post7888354
BEFORE you do anything, you will need to empty out some coolant out from the bottom of the radiator. To do this, use a 19mm socket and locate the drain plug on the passenger side of the car. Loosen the plug a little bit and let about a gallon or so of coolant drain out (I don't know if less would be OK but I drained out more to be safe).
Today I was able to remove the thermostat housing to get to the thermostat and the old rubber o ring that was on it.
The housing was stuck but what I did was take a flathead screwdriver and a hammer/mallet and tapped at the base of the housing. Eventually, the housing broke free from the intake manifold.
I replaced the old o ring with a new one (costs a few dollars if that).
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bradleyb
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