2000 Cadillac Deville Had Coolin Leak Put Two Types Stop Radiator Now Car Tryin

2000 CADILLAC DEVILLE

139,410 MILES

ANONYMOUS

MEMBER
1 POST

i had a coolin leak and i put two types of stop leak in my radiator it stop the leak but now the car tryin to run warm now what should i do it wasn t runnin warm until i put the stop leak in the names of the stop leak was
prestone super radiator stop leak and the other one was bar none stop leak for intake and radiator

Dec 24, 2012 at 10:45 PM

WRENCHTECH

✓ASE Certified Mechanic
20,761 POSTS

That's why you should NEVER add that stuff to your system. There is no such thing as "Mechanic in a Can". All that stuff does is plug up the rest of your system. You're probably going to have to replace the radiator and thermostat now and possibly the heater core too. When you have a leak, repair whatever is leaking.

Jun 9, 2020 at 12:55 PM

ASEMASTER6371

✓ASE Certified Mechanic
52,796 POSTS

sealers are very bad news. they rarely work and cause all kinds of problems. it clogs the radiator and heater core causing bad circulation.

i would have that crap flushed out of the system, pressure tested for leaks and repair the leaks correctly.

Roy

Jun 9, 2020 at 12:55 PM

WRENCHTECH

✓ASE Certified Mechanic
20,761 POSTS

Flushing may not help at this point. that stuff tends to harden.

Jun 9, 2020 at 12:55 PM

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