Coolant leak

[jkelley]

Where else could coolant leak from if it is NOT from the radiator, all hoses, or water pump?

I can kinda see a little coolant puddle up top by the intake.. It only leaks to the ground when the car is started up and running. I can probablly loose close to a quarter of a gallon per day

[LETZRIDE]

Re: Coolant leak

plastic elbow that runs under the intake manifold, or when my thermostat housing was leaking it would pool up on the driver front side of the UIM.

[jkelley]

Re: Coolant leak

I guess I should of been a little bit more specific. Sorry. I have a 2000 camaro 3.8

The leak seems to be apparent on the passenger side intake... there's a little puddle forming under the passenger side injectors

[Bonemaro]

Re: Coolant leak

Lower intake manifold. Just had to do mine. Same symptom as you. Got to where I was loosing 1.5 gals a day.

[jkelley]

Re: Coolant leak

Lower intake manifold. Just had to do mine. Same symptom as you. Got to where I was loosing 1.5 gals a day.

Are you talking about the gasket?

[Bonemaro]

Re: Coolant leak

yup...

[jkelley]

Re: Coolant leak

so I have a coolant leak, and its not leaking from the radiator, hoses, water pump, water outlet or heater core; the leak seems to be coming from my intake manifold, but not for sure. Now I am aware that there is a lower intake manifold gasket and an upper plenum gasket. Can coolant leak from either gasket, or just to the lower? Is the upper just strictly to prevent a vacuum leak or does coolant flow through there also?

[LETZRIDE]

Re: Coolant leak

it can leak through the upper as well...although I believe it will usually only leak through the front portion of it

[jkelley]

Re: Coolant leak

I believe it's leaking in the area under the TB.. what would be your diagnostic?

[cam98aro]

Re: Coolant leak

I believe it's leaking in the area under the TB.. what would be your diagnostic?

im pretty sure coolant runs through the TB, so it could be the TB gasket, or one of the hoses that bring coolant to it

its a guess, i have never messed with my TB before, so i could be completely wrong here

[jkelley]

Re: Coolant leak

im pretty positive coolant does not run to the TB

[mtscorvette]

Re: Coolant leak

no, coolant does run into the throttle body a little bit, right in the bottom part.

[jkelley]

Re: Coolant leak

okay.. well im losing massive coolant

[Blizzard242]

Re: Coolant leak

Well if it's dripping when it runs that should be pretty helpful in finding the location it's coming from. When the car is off and cooled down, clean up as much coolant as you can then start it up and look for where it's coming from. Pretty straight forward..

And yes, like they said, coolant does run through the throttle body.

[jkelley]

Re: Coolant leak

I've tried that.. and my description is the best I can see.. it's not a definitive spot but I see nothing dripping from the TB itself..