Quote:
Originally Posted by Old Mechanic
If it was my car I would replace the radiator after I knew the cooling fans were working properly as XYZ pointed out.
regards
mech
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Thanks.
On a Toyota I once owned it had a very similar problem. It only overheated when under heat stress, such as on very hot days or climbing hills. It ran fine with no overheating in every season except summer. Rather than diagnose which sensor was bad, I wired
both the A/C fan and the rad fan to come on instead of just the one rad fan, as was intended. That was a practical solution, but it didn't ultimately get to the source of the problem, which was apparently that of the fan control circuit.