Coolant Leak underneath driver seat [Archive] - DSM Forums: Mitsubishi Eclipse, Plymouth Laser, and Eagle Talon Forum: DSMtalk.com

: Coolant Leak underneath driver seat


Beech
11-08-2010, 11:43 AM
I have a huge coolant leak underneath the drivers and passenger seat. I let the car warm up and took it for spin. I stoppped around the corner and I heard boom. Any Ideas ??, I'm geussing i blew the heater core ?

MacGSX
11-08-2010, 11:46 AM
Sounds like a heater core... Loop the lines in the engine bay and see if it goes away.

Jordan

Beech
11-08-2010, 12:00 PM
ok thanks , i'l try that and see what happens

motozachl
11-09-2010, 07:35 AM
Heard a boom? Wow. There's two coolant lines that run through the firewall into the heater core. Look around the center of the dash for leakage

Beech
11-09-2010, 07:51 AM
Under the dash looks clean, no leaks, It leaked all over my exhuast and onto the floor just near the center back of the fire wall??

GTAhot92
11-09-2010, 08:16 AM
So it's inside the car and outside?

motozachl
11-09-2010, 09:09 AM
Check the lines in the engine bay going into the firewall then

Beech
11-09-2010, 10:25 AM
No leaks inside the car, Its all dry, I checked all the hoses they seem fine as well ?? Are there any lower hoses that im unaware of ?

MacGSX
11-09-2010, 11:36 AM
Fill the fluid, start the car and watch for leaks.

motozachl
11-09-2010, 12:29 PM
Look under your seat for a forgotten about open bottle of spilled coolant. There's really no other possiblities of getting coolant in your car if you've checked everything else

TurboTrader
11-09-2010, 03:49 PM
The only other possibility could be that one of the freeze plugs at the rear of the block popped out, or is leaking somehow. That's about the lowest point there could be coolant at the rear of the block.

Also check the small rubber hoses that are at the bottom of the throttle body, those are coolant lines as well and go through the FIAV.

907gs-t
11-10-2010, 12:58 AM
Sounds like a heater core... Loop the lines in the engine bay and see if it goes away.

Jordan


I'm also thinking it's the heater core.

bertrenolds5
11-10-2010, 05:05 PM
If there is coolant in the car it can only be the heater core as mac and 907 said. Do what mac said, take the two heater core hoses and loop them somehow and see if it stops. Otherwise replace the heatercore because that is what is leaking.

GTAhot92
11-11-2010, 08:34 AM
No leaks inside the car, Its all dry, I checked all the hoses they seem fine as well

It's not inside the car! I just read several post that said if it's leaking in the car, must be heater core.

Freeze plug makes sense, especially if it popped.

Beech
11-12-2010, 06:34 AM
Ok, thanks for the help guys, But I have another question , I am led to think its the freeze plug. Has any body ever replaced them, and Do I need to remove the engine to do so ??

GTAhot92
11-12-2010, 09:00 AM
We just did some on a 1ga 2.0T. What year and motor is your car? Easiest way is to remove the intake manifold. You will need the plugs a brass bar to tap it in, and some silicone or thread locker. Fairly easy just getting there is the hard part.

Beech
11-12-2010, 09:23 AM
Ok, My car is a 1gb and it is also 2.0t 6bolt, I'm sure I will get into it sometime next week, thanks again guys.