Coolant Leak
Thread Starter
Intermediate
Joined: Jun 2007
Posts: 29
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From: Northern VA
Coolant Leak
My 2000 MN6 coupe has been intermittently leaking coolant. It doesn't appear to be coming from the radiator as the leak appears to originate further back from the radiator. I haven't noticed any fluid leaking around the reservoir cap either. The leak is not constant. I know it's coolant because of the consistency of the fluid and I have had to add more coolant to the reservoir. Any advice would be greatly appreciated as I would like to try to fix it myself and only take it to a shop as a last resort.
Melting Slicks
Joined: Nov 2005
Posts: 2,296
Likes: 156
From: Clayton New Jersey
I had the same problem on my 2000 MN6. If you run your hand under the thermostat housing you should feel some coolant. Mine had a strong odor too after a long drive. I took mine to the dealer (service contract) they told me that it was the water pump gasket. They replaced the water pump and gasket. I remember the service manager telling me something about a service bulletin regarding the gasket separating and causing a leak not 100% sure.
Good Luck
Good Luck
Thread Starter
Intermediate
Joined: Jun 2007
Posts: 29
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From: Northern VA
It's bone dry right now. Just completed a 175 mile trip about 2 hours ago. It hasn't leaked any fluid since I filled the reservoir yesterday. It can go days without leaking and then I will see a big puddle. Is this similar to your situation?
Le Mans Master
Joined: Sep 2003
Posts: 8,847
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From: Longview Texas
If it does not leak all the time, my guess would be the water pump seal is failing. They can leak off and on, then one day, coolant will pour out. See if you can tell if any fluid is coming from behind the pulley where the weep hole is.
Thread Starter
Intermediate
Joined: Jun 2007
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From: Northern VA
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Tech Contributor
Joined: Dec 2006
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From: Van Buren Arkansas
Wounded Warrior Escort '11
On my '99, the water pump started leaking a little and I didn't know it, a few years ago. I was in San Diego when I got a low coolant alarm. Replaced the coolant and no problem for another week, then on the way to work, I got the alarm again. Arriving at work, I see it dripping out of the water pump bearing/seal. Nice when I'm 70 miles from home. Cost me dearly at the dealership to have them replace plus a rental car for one night. I believe I had to shell out over $750 for that repair.
Melting Slicks
Joined: Nov 2005
Posts: 2,296
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From: Clayton New Jersey
Good Luck, Bill
Racer
Joined: Sep 2006
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My 2000 MN6 coupe has been intermittently leaking coolant. It doesn't appear to be coming from the radiator as the leak appears to originate further back from the radiator. I haven't noticed any fluid leaking around the reservoir cap either. The leak is not constant. I know it's coolant because of the consistency of the fluid and I have had to add more coolant to the reservoir. Any advice would be greatly appreciated as I would like to try to fix it myself and only take it to a shop as a last resort.
Thread Starter
Intermediate
Joined: Jun 2007
Posts: 29
Likes: 0
From: Northern VA
