Question about 1986 Toyota Pickup 4WD

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I have a 1986 toyota pick-up, 4 cyl, 4wd with a 22r engine. the truck had been overheating and I found a leak in the rad, I replaced the rad and everything was fine for the past few months. Recently it started overheating again, the first time it happened I topped up the fluid and it lasted 3 weeks without overheating again. Then it started to overheat again last night and when I checked the coolant levels it was still full. The other symptom is that there's some white smoke from the exhast when I start the truck that lasts until it's heated up. What could th problem be here? Water pump? Head gasket? Any suggestions?

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L could suggest you to check your engine thermostat if is working. if it is found defective,replace. some say, yes, could be the head gasket. it causes also of overheating. but smoke you notice at the tail end, could be you have broken valve seal and eats up the oil. this another problem makes the engine's overheating. the 25 old old engine really need an overhaul.

Posted on Apr 09, 2011

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