Coolant Leak
Thread Starter
Intermediate
Joined: Jun 2007
Posts: 29
Likes: 0
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
Likes: 0
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
Likes: 795
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
Posts: 29
Likes: 0
From: Northern VA
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
2027 Corvette vs The World: Every C8 vs Its Closest Competitor
Joe Kucinski
10 Most Common Corvette Problems of the Last 20 Years!
Joe Kucinski
5 MOST and 5 LEAST Popular Corvette Model Years in History!
Joe Kucinski
2027 Corvette Buyer's Guide: Everything You Need to Know!
Joe Kucinski
10 Things C8 Corvette Owners Hate (But Won't Tell You)
Joe Kucinski
10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!
Brett Foote
Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)
Joe Kucinski
Grand Sport & Grand Sport X Launch Alongside All-New 535hp LS6 V8!
Michael S. Palmer
5 Reasons Bad Drivers Crash & 5 Ways to Avoid a Costly Mistake!
Joe Kucinski
Tech Contributor
Joined: Dec 2006
Posts: 10,962
Likes: 29
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
Likes: 156
From: Clayton New Jersey
Good Luck, Bill
Racer
Joined: Sep 2006
Posts: 280
Likes: 0
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
