Last winter, in the dead of winter in February, the coolant level is the surge tank started going down. I had to put in a half litre of coolant every 500 kms. This only lasted for less than a month and the truck stopped using coolant after that. I carefully checked all the hoses for leaks, checked the tailpipe for wetness and found nothing. No drips from the drain pipe for the heater core compartment. I ordered a heater core from Rockauto, figuring I would replace the core come spring after the weather moderated. In April I pressurized the cooling system to 15psi with compressed air and watched the drain tube from the heater core compartment and did not see a single drop. I have not replaced the heater core yet.
I never smelled any coolant in the cab. I use Dexcool, replaced every five years. No white smoke from the exhaust. I just went and checked the coolant level, it is full and I have not topped it up in four months.
Wondering if I should just replace the heater core. It is a fairly involved job, requiring dash removal.
I never smelled any coolant in the cab. I use Dexcool, replaced every five years. No white smoke from the exhaust. I just went and checked the coolant level, it is full and I have not topped it up in four months.
Wondering if I should just replace the heater core. It is a fairly involved job, requiring dash removal.