I have a ford explore when you start the truck up the temperature gauge goes too hot and th.e alarm go awesome
can anyone help mean
Check your coolant level, you might be very low or none at all, also check the coolant surge tank.
Check the wire going to the temperature gauge sending unit. It may be shorted to ground. This can happen if the insulation wears/rubs off the wire then the wire tpuches something metal. If the wire checks out good then replace the sending unit. HTH. -Jim
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