Fluctuating hot water gauge for Subaru Baja

P0113 ? intake air temperature (IAT) sensor high output

possible cause: bad IAT sensor, wiring, bad ground wire, ECM bad

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These details will help.
Thanks.

It means that your oil temperature is too high. Have you changed your oil recently?

Hi,
This is a problem with the heat exchange valve which will need to be replaced, this switches the hot water flow on and off. Thanks
Jason

At idling speed an engine does build up a lot of heat and the cooling fan will kick in. In slow moving traffic or traffic jams the temperature gauge can touch the red - particularly on hot days. The reason it cools down when you start moving is because of the air flow through the radiator.

Presumably there are no leaks from the cooling system otherwise you would have mentioned it. In normal circumstances the fan will not be running as you are driving at speed, as the air-flow through the radiator is sufficient to cool things. The fan only kicks in to get rid of excess heat - and this usually occurs at idling speed or after you have parked the car.

If the fan is running all the time as you drive, this points to either a fault in the fan switch, or the car is running too hot. presumably in normal driving the fan isn't running and the temperature gauge reads normal?

It is common - in stationary traffic many cars overheat (particularly big engined models) try to stall and 'cut out'. Restarting can be difficult until the engine cools down.

Is your car overheating in normal driving conditions or just at idle speed? Overheating in normal driving conditions can be caused by things like a failing water pump, blocked radiator, collapsed hose, faulty thermostat or, in the worst case scenario, cylinder head problems.

Overheating at idling speed is 'common'. Check your coolant level. If your car isn't using/losing coolant then there probably is no major problem. You can flush out the cooling system and refill with new coolant - and also check your radiator. Are the cooling fins crumbling with age? Or maybe they're partly clogged with insects and debris from the road? A blast with a hosepipe wil sort that out ..

The question is how much does your car overheat in normal driving? If it doesn't .. it appears as though you have nothing to worry about as such. Most cars have 2 speed fans... the 2nd faster stage kicks in at some point dependant on engine temperature. Perfectly normal.

There could be a number of causes of a fluctuating temperature gauge but most commonly is the thermostat. It could also be a head gasket, cooling fan problem or the actual temperature sending unit. I hope this helps!

check the master cylinder for dirt you could have a foreign matieral in the brake line causing a clog i would also check to see if the abs pump isnt turning on by itself when your driving

I'm thinking the coolnat level is low, and this might be caused by a bad head gasket - At least $800 to fix - sorry.

Check your thermostat is working properly and maybe even flush and replace coolant. Good luck and have a great day.

make sure alignment
marks of both cams are at 12 o'clock crank alignment is also at 12,use the line on the reluctor of the crank gear as your mark ,match it with the mark on on the oil pump housing where the crank sensor is,,ok all marks at noon that's what i should have said idon't want to confuse you good luck