I have a coolant leak somewhere...

MarTTy4653 · 12-16-2008, 12:51 PM

Hi, Guys...I have an '86 MRII. This morning when I was on the road on my way to work, the temp needle pegged at maximum. It's about 20 degrees outside now, and we just had an unseasonably cold couple of days. I noticed a lot of steam coming out of the area under the coolant overflow tank near the oil cap.
Since I'm a newer MRII owner, I don't know the car as well as I should yet...I did put some more coolant in, but the overheating started up shortly after I started up the car. What / Where are the things I need to be looking for? It seems like there's a loose or cracked water hose leaking somewhere, but I just can't see it yet. (Too much steam in the way on a cold day)
Thanks in advance for any help, Marty

devildog · 01-07-2009, 01:36 PM

I have an 85 that had the same problem. I love this car!

Put in a dose of radiator sealant, I used the cheap stuff and it worked! 4 days later I had to replace the thermostat. Now I add 1/2 cup a week when checking the oil.

Teado · 01-14-2009, 02:37 PM

Do you notice any coolant on the ground after it's been parked a while?

Timon · 01-15-2009, 12:30 AM

Quote:

Originally Posted by devildog

I have an 85 that had the same problem. I love this car!

Put in a dose of radiator sealant, I used the cheap stuff and it worked! 4 days later I had to replace the thermostat. Now I add 1/2 cup a week when checking the oil.

No offense, but that isn't a fix, just a bandage.

To the OP, what you should do first is check for any leaks. Next thing is to burp the coolant system.

12-16-2008, 12:51 PM	#1 (permalink)
MarTTy4653 No Skills Join Date: Apr 2008 Posts: 7 Thanks: 0 Thanked 0 Times in 0 Posts iTrader Rating: (0/0% )	I have a coolant leak somewhere... Hi, Guys...I have an '86 MRII. This morning when I was on the road on my way to work, the temp needle pegged at maximum. It's about 20 degrees outside now, and we just had an unseasonably cold couple of days. I noticed a lot of steam coming out of the area under the coolant overflow tank near the oil cap. Since I'm a newer MRII owner, I don't know the car as well as I should yet...I did put some more coolant in, but the overheating started up shortly after I started up the car. What / Where are the things I need to be looking for? It seems like there's a loose or cracked water hose leaking somewhere, but I just can't see it yet. (Too much steam in the way on a cold day) Thanks in advance for any help, Marty

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01-07-2009, 01:36 PM	#2 (permalink)
devildog No Skills Join Date: Oct 2008 Posts: 5 Thanks: 0 Thanked 0 Times in 0 Posts iTrader Rating: (0/0% )	I have an 85 that had the same problem. I love this car! Put in a dose of radiator sealant, I used the cheap stuff and it worked! 4 days later I had to replace the thermostat. Now I add 1/2 cup a week when checking the oil.

01-14-2009, 02:37 PM	#3 (permalink)
Teado MK1 = My Daily Addiction Join Date: Jun 2008 Location: Oregon Posts: 272 Thanks: 11 Thanked 9 Times in 8 Posts iTrader Rating: (2/100% )	Do you notice any coolant on the ground after it's been parked a while?