I've got a hole in mine, stop leak worked for a week. Wondering radiator to go with. I'm going dual electric fans, anything helps. Thanks.

 

I bought my last two radiators from The Radiator Barn. Very competitive pricing, fast delivery, and they are good people to deal with. I got 3 row all brass radiators for both my 90 and 91 XJ's from them. They seem to be very good quality.

 

aluminum.

now you've probably clogged up your heater core using stop leak. it should be called "stop heat".

 

rockauto

radiatorbarn

Be sure to flush your cooling system (use a flushing chemical) to try to get as much of that stopleak product out of your cooling system BEFORE you install the new radiator.

And when I install a radiator, it is always a good time to review other components of the cooling system as money spent on cooling system maintenance is money well spent.

Hoses, thermostat (195 degree only), fan clutch, radiator cap, and especially water pump as it is completely exposed. None of these parts are particularly expensive, if you are doing the labor yourself.

Finish with a 50-50 mix of conventional (green) antifreeze and distilled water. Verify concentration with a hydrometer.

 

I had a feeling that crap would come back and bite me in the butt, heater hasn't pumped out heat as is use to. Dang it! Thanks for the info.

 

Thanks for the reply. I just did all the maintenance prior to this and then a hole shows up on a road trip, stop leak was the choice I had to get home. It did it's job, but I guess it doesn't say what it also does. Thank you again.

 

Hmm, I've never had any problems with clogging the heater core or anything else in the cooling system using the powdered metal type radiator stop leaks. And they work really good at stopping cooling system leaks too.