Ok, so last night I was driving and I see a 05 GT, so me and this GT were racing a little (i was ahead..), there was a truck in front of me so i slow down. Me an my friend start to smell coolent. Then I look down and see my coolent light came on. So we pull over to a gas station and see a puddle of coolent under my car, so we pop the hood and there is coolent steam every where. I turn off the car and open the coolent resevoir (sp?) and its bone dry. We put some water in it and fill it up again. Start the car and no leak. Then I turn my heater on (it was on b4). and It still doesnt leak. My friend said to give it a little gas, then a little bit after that it starts leaking, only after i revved it up. So i shut it off again, put more water in, turn off the heater, then drive it down the street to my friends apt. It didnt leak on the way back but i kept the rpms very low and didnt use the heater. He has a 97 GT also and his heater core went out on him, but it leaked all the time, on or off, and usually when heater cores go its wet in the passenger side floor. Any help will be appretiated? Thanks.
Coolent leak problem...
- Thread starter Mazubee97
- Start date
Could be the infamous cracked intake. 96-97's were silently recalled i think and dealer fixed. Proably expired though and needs to be cracked at the crossover thingy.
Mine cracked at the heater hose just above cylinder 4. It would only leak at higher rpms due to the pressure put on the coolent( makes sense to me anyway).
I see Pi intake and Heads for 50+ hp in your future...
Mine cracked at the heater hose just above cylinder 4. It would only leak at higher rpms due to the pressure put on the coolent( makes sense to me anyway).
I see Pi intake and Heads for 50+ hp in your future...
Mine leaked in the back, most will leak somewhere under/near the alternator. do you have an aluminum crossover on your intake? If so yours has already been replaced by the dealer.
Proably didn't leak because of the low RPM's. Doesn't rule out that the heater core is messed up.
Preformance wise, just overheating is the issue. Mine wouldn't leak as fast as your descibing.
Pop the hood and rev it a bit, try to check some spots for a leak, gl. then again i didn't see any leak doing this. Must of not revved it high enough.
Proably didn't leak because of the low RPM's. Doesn't rule out that the heater core is messed up.
Preformance wise, just overheating is the issue. Mine wouldn't leak as fast as your descibing.
Pop the hood and rev it a bit, try to check some spots for a leak, gl. then again i didn't see any leak doing this. Must of not revved it high enough.
ive been trying to find out what is wrong all day with little tools. so far we found out it leaks when the heater is on or off... we bypassed the heater core and it still leaks. it will only leak when i rev it. when i squeeze the upper radiator hose i hear a noise in the intake manifold area... looking more and more like it could b a crack in the intake manifold. or something wrong with that coolent runner under the intake manifold... still dont know tho...
Mazubee97 said:
Do a search on cracked intakes and you will find hundreds of posts about it. It will happen eventually on every intake that has the plastic crossover. Some last longer than others but hitting high rpms are going to trigger it. It is usually behind the altenator and the coolant will squirt on the alternator and into the valley of the block. Open up your hood and have someone slowly rev the car up higher and higher and you will eventually see where it is. I did that only I put a video camera in front on my engine and revved it myself then reviewing the video could easily see where it was coming from. You need to replace the intake with one that has an aluminum runner. Non PI or PI it's up to you. Sometimes the hose from the water pump that travels between the heads to the firewall will leak at the firewall. Mine does this also when I hit 5000 rpms.
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