i have a 1999 vw new beetle 2lirtre we replaced the radiator the water pump because it was over heating and replaced the cooling fans they worked at first and now they quit and the cars over heating again and theres bubbles coming up in the coolant tank what can i do about it
Did you replace the thermostat ? Try that cheap fix first, then fix the cooling fan and try again.
Do what Fordtudor stated to do first, and make sure the cooling system is air free, then recheck to see if you still get bubbles. Bubbles in the coolant tank is not a good sign, they usually indicate that compression gasses are entering the cooling system, if you still get bubbles then you will need to run a block check to verify this, if the block check is positive then at the very least the head is going to have to be removed and hope it is just a headgasket and not a cracked head.
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