COOLANT LEAK FROM EXHAUST
- Thread starter Mafia Mustang
- Start date
Welcome to stangnet.
Wish you could have found us in a better situation.
I guess I don't understand.
either the coolant came from on top of the head, or it is running inside the header tubes?
Please clarify where you are seeing the coolant.
jason
Wish you could have found us in a better situation.
I guess I don't understand.
either the coolant came from on top of the head, or it is running inside the header tubes?
Please clarify where you are seeing the coolant.
jason
wouldnt it just burn into white smoke by the time it gets there? This is very weird 
And if fluid can come out of there you have an exhaust leak.
My guess is its coming from somewhere like the intake or heatercore, and dripping down to where it looks like its coming from that spot. Check the back of your engine area, or top of the tranny, see if you can spot any coolant around there.
And if fluid can come out of there you have an exhaust leak.My guess is its coming from somewhere like the intake or heatercore, and dripping down to where it looks like its coming from that spot. Check the back of your engine area, or top of the tranny, see if you can spot any coolant around there.
Glaze
New Member
Im assuming you havent bolted the x pipe tight yet...right?
Check for water in oil yet? Might show up on dipstick or top of oil cap.
Did machine shop mill the heads or block head surface at all?
Check for water in oil yet? Might show up on dipstick or top of oil cap.
Did machine shop mill the heads or block head surface at all?
This is not good.
It's either coming from the intake and traveling thru one or more cylinders or it's coming from a head gasket sealing problem.. either way not good.. check to see if there is coolant in the oil yet.
It's either coming from the intake and traveling thru one or more cylinders or it's coming from a head gasket sealing problem.. either way not good.. check to see if there is coolant in the oil yet.
If you're losing that much coolant through your exhaust, that points to head gaskets. Did you use new bolts when installing the heads? What technique did you use to bolt the heads down, and what torque spec?
Coolant
On one of the heads was warped so I had it shaved just a little bit cuz i was getting a leak out of front of te head but that fixed it so I have been though a couple head gaskets fel pro from summit and one from ford and they all looked the same. I have cast Iron heads on it do I need new bolts I though that was just on aluminum heads?
Johnny
On one of the heads was warped so I had it shaved just a little bit cuz i was getting a leak out of front of te head but that fixed it so I have been though a couple head gaskets fel pro from summit and one from ford and they all looked the same. I have cast Iron heads on it do I need new bolts I though that was just on aluminum heads?
Johnny
If you reused factory torque to yield bolts, you'll never get the correct torque spec on the bolts. The same applies for iron or aluminum heads. Buy a set of ARP bolts or studs before you drive yourself nuts and go broke replacing head gaskets.
stangjunkie
New Member
- Nov 15, 2004
- 381
- 0
- 0
theoretically you should replace the bolts but that wont cause this problem... are you sure its coolant and not just water?? this would be a big dofference. if you find that it is just water where do you live??
sunil6784
Member
I'm with stangjunkie, my sentra does the same thing...leaks a little water where the midpipe connects to the manifold. No biggie, but it is water.
Did you check your coolant level ? Is it going down ?
Did you check your coolant level ? Is it going down ?
There is no need to replace the head bolts on the 302.
Until they break, they are just fine.
ARP's would be better, but unless your gonna spring for them, the stockers will work well.
Perform a Coolant Pressure test.
With the engine off, pressurize the coolant system.
You will find leaks with in a few minutes.
Normally, coolant doesn't leak from the exhaust, but rather from the heater lines or maybe the back of the block.
Most likely, the midpipe flange is where you first noticed the coolant.
It is probably getting there from somewhere else.
jason
Until they break, they are just fine.
ARP's would be better, but unless your gonna spring for them, the stockers will work well.
Perform a Coolant Pressure test.
With the engine off, pressurize the coolant system.
You will find leaks with in a few minutes.
Normally, coolant doesn't leak from the exhaust, but rather from the heater lines or maybe the back of the block.
Most likely, the midpipe flange is where you first noticed the coolant.
It is probably getting there from somewhere else.
jason
Now, if coolant does leak from the passenger side exhaust pipe during a coolant pressure test with the car off what could that signify
A bad head gasket is the most likely culprit.
Other possibilities are way worse.
Pull your plugs and see if any of the cylinders are wet from your pressure test.
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