Quote:
Originally Posted by cool breeze
Mileage and history, please.
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~148K
I bought it with 103K on the ticker about 4 years ago. The previous owner bought it as a Toyota certified used vehicle with complete service records. He had it for a short time before selling to me. It had a couple red flags. The engine showed evidence of an oil leak front and rear. The advice here on Mud was seeping oil pan arches.
The other issue was green coolant in the radiator. It didn't seem like too big of a deal so I bought the truck. The green coolant however has turned out to be a big problem.
The overflow reservoir had a small layer of sludge which typically results from silicates dropping out of solution when red and green coolant are mixed. I flushed the system several times and switched to red coolant. Flushed again 6 months later just to be sure.
The truck ran hot on a road trip about a year and a half ago, so I replaced the radiator, hoses, thermostat and changed oil in the fan clutch. I cut the old radiator in half and found more sludge in the bottom two inches. I'm convinced that this previous cooling system problem accelerated the failure of the head gasket.