Radiator Stop-Leak in 4.6L ?

Do not use this stuff. it will clog your heater core and only temporally fix leak if at all. Find a radiator shop to repair. If you have to go for a cheap crappy do it your self repair, I have found fiberglass/epoxy to work very well. The fiberglass works great in normally non-repairable core leaks. Just pore a bunch in and let harden.

try tightening the crimps at the location of the leak.

You might be able to take it out to a radiator shop and have them put a new gasket in it and re crimp it for 1/2 of what a new one would cost. Make some phone calls and ask some radiator shops. If the tank is cracked (i had that happen once) or the fins are leaking you need a replacement.

If you really depend on the car to get to work or such, a couple hundred bucks for a new radiator is not a lot to pay for dependable transportation. (compared to a few towing bills and many jugs of antifreeze). If your really cheap, watch the paper and small adds type papers for someone parting out a car like yours and buy the used radiator. Or maybe the U-Pull type salvage yards.

Bob

I figger less if I drop the rad. (not the car) off.

We pressure tested. All I could see was a dribble from the juncture of the tank and the fin-unit on shotgun side.

Guy at the rad. shop wrote estimate for about $500 with new hoses, etc.

I'm retired, budget's a wreck. Drive a couple/3 times a week.

I know a yard I could wrench a rad. for maybe $16, but it'd have maybe 200k mi. on it, and maybe more problems than the 1 I got. Pass on that.

I'll call around rad. shops Mon.

Much thanks, Puddin'

I have had good luck fixing various manifold leaks with JB Quik Weld. Cheap and easy try.

I have had good luck fixing various manifold leaks with JB Quik Weld. Cheap and easy try.