So I changed my water pump in my
1989 Pontiac grand Prix because I
thought it had went bad but after I got it
changed there's still a leak somewhere
and I can't see where its leaking from or
anything any ideas
Just follow the drip, I can't do it from here.
If the leak is really tiny I would try Alumaseal but it is better to trace it out and fix it.
The plastic elbows (if it has them, I'm not sure on a car that old) leading to the heater core are prone to failure. Even if they are not leaking they should be replaced. They all fail eventually and will leave you stranded. Adding a sealant to the cooling system is an excellent idea. The engine is prone to gasket leaks and fixing them is expensive. On a car that old you don't want to be spending all kinds of money. It's a cheap fix and if it works it will likely last the remainder of the car's life.
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