Coolant Leak
Thread Starter
Safety Car
Joined: Mar 2005
Posts: 4,723
Likes: 11
From: Winnipeg Manitoba, Canada
Coolant Leak
For the past week or so i have had a small coolant leak. All the hoses and hose clamps are brand new, tight and not leaking. The intake, thermostat and throttlebody gaskets have all been replaced. The coolant seems to coming from the top of the engine and dripping down. Im just wondering if anyone can think of any places it could be coming from. The circled area in the picture i have posted shows where the coolant is sitting and dripping down. Any suggestions would be great!
Safety Car
Joined: Sep 2003
Posts: 3,599
Likes: 24
From: Orange County NY
St. Jude Donor '10-'11-'12-'13
There is a coolant passage below the IAC housing; it bolts to the bottom of the throttle body. The leak could be coming from there...
BTW, those bolts deteriorate quite a bit, and often break off when you try to remove them.
BTW, those bolts deteriorate quite a bit, and often break off when you try to remove them.
Advanced
Joined: Apr 2005
Posts: 66
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From: levittown NY
This looks like the leak I had
for a couple of years. At first I thought it was the stat housing also but it turns out it was the manifold to head joint. The factory installed bolt in front was only slightly tighter than hand tight. But tighting didn't help, I had to pull the intake and redo using Fel-pro intake set.
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Originally Posted by Morley
Check the thermostat housing, it is made of thin cast alumnium and can crack around the base.
I always remove the throttle body when screwing around witht the thermostat housing to be sure I can tighten the thermo housing down properlyAlso, this may be silly, but if you put the thermo gasket on top of the thermo deck, you will get a similar leak
seeya
Melting Slicks
Joined: Jul 2004
Posts: 2,018
Likes: 1
From: OR
Originally Posted by waynesTPI
for a couple of years. At first I thought it was the stat housing also but it turns out it was the manifold to head joint. The factory installed bolt in front was only slightly tighter than hand tight. But tighting didn't help, I had to pull the intake and redo using Fel-pro intake set.
My son's gmc truck was leaking coolant past the threads on the intake. He wanted an edlebrock intake and carb anyway. Replaced the whole works including new bolts. Same leak. Did the thread sealer and rtv thing and no more leak.
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Thread Starter
Safety Car
Joined: Mar 2005
Posts: 4,723
Likes: 11
From: Winnipeg Manitoba, Canada
Originally Posted by jackdaroofer
:
Also, this may be silly, but if you put the thermo gasket on top of the thermo deck, you will get a similar leak
seeya
Also, this may be silly, but if you put the thermo gasket on top of the thermo deck, you will get a similar leak
seeya