My water pump belt broke, so husband replaced it. Next time I drove fast, temp warning light came on. Hubby checked water, no water lost but belt lose, so he tightened it. Got light on again when under load, belt not loose this time, and no water lost. Temp light always goes out when I drop my speed and turn the heater on.
Changed thermostat and temp sender, still got same problem. Tightened belt more, still got problem. He has checked the fan comes on when idling, he has taken out the water pump and says it is fine - what else can it possibly be!!
Could it still be the pump belt is too loose? A mechanic checked it and reckoned it was fine. Don't want to over-tighten and break water pump.
Changed thermostat and temp sender, still got same problem. Tightened belt more, still got problem. He has checked the fan comes on when idling, he has taken out the water pump and says it is fine - what else can it possibly be!!
Could it still be the pump belt is too loose? A mechanic checked it and reckoned it was fine. Don't want to over-tighten and break water pump.