Q: My 99 4runner 3.4 v6 heater will go cold and engine overheats. I've replaced the thermostat and still having problems

asked by on December 19, 2016

Heater goes cold and engine overheats. I've already replaced thermostat. Still having problems. Removed the thermostat and noticed weak water flow with radiator cap off. Could my water pump be the problem?

My car has 240000 miles.
My car has an automatic transmission.

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