Can anyone help me as my 57 plate puntos engine is overheating but my temp guage is sayin its ok. I only have to drive a short distance and the heat off it is unreal ive had a new cam belt and water pump fitted last year and am not loosing any water so am at a loss on whats wrong. Am scared to drive any distance incase something happens like catchin fire. Any help id be greatful thanks
Technical Engine overheating but temp guage ok
- Thread starter Skyline55
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Technical Engine overheating but temp guage ok
What makes you think that it's overheating? Obviously engines do get hot, in excess of 100 degrees C. If your temp gauge is reading OK, but the coolant was overheating then it would be expanding beyond the limits of the system (as steam) and escaping. If you're not losing any coolant, I don't think there's a problem, particularly if your temp gauge is OK. Under normal conditions, does your temperature gauge rise gradually, or do nothing for a few minutes and then all of a sudden rise to ~90 degrees and stop there?
Any warning lights on the dash? I'd be inclined to get the codes read.
Nope
cmosfxx
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You do realise that the heat is coming from the heater right?
Check for stuck/broken heater flap.
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it should warm up quite fast, few km
If you are afraid of driving your car call a flatbed and take it to a shop, simple as that.
Option1:
Running hot, and low power, might suggest cambelt timing wrong, so power is being lost as excess heat. Cooling system is coping for now.
Option2:
Heater stuck on hot, despite moving controls.
Make sure you can get cool air when set on cold.
Option3:
Thermostat sticking.
From cold, start engine and allow to tick over.
Hose from thermostat should get warm, due to heat conduction along it, then suddenly get hot as stat opens.
Then radiator should get hot from top down, as hot coolant travels down it to be cooled.
Without burning yourself, or getting hit by the electric fan, check that the whole radiator gets hot evenly, so not blocked.
Option4:
New water pump has a slipping impeller. Difficult to diagnose without removing it. This is often a problem with plastic impellers, can you remember what you fitted? Metal impellers rarely let go.
There may be more options.
Running hot, and low power, might suggest cambelt timing wrong, so power is being lost as excess heat. Cooling system is coping for now.
Option2:
Heater stuck on hot, despite moving controls.
Make sure you can get cool air when set on cold.
Option3:
Thermostat sticking.
From cold, start engine and allow to tick over.
Hose from thermostat should get warm, due to heat conduction along it, then suddenly get hot as stat opens.
Then radiator should get hot from top down, as hot coolant travels down it to be cooled.
Without burning yourself, or getting hit by the electric fan, check that the whole radiator gets hot evenly, so not blocked.
Option4:
New water pump has a slipping impeller. Difficult to diagnose without removing it. This is often a problem with plastic impellers, can you remember what you fitted? Metal impellers rarely let go.
There may be more options.
