Help car is playing up

[Holden Chick]

Just recently on my way to work on Friday and Monday my car started beeping and the word "HOT" flashed on the dash, problem being the needle on the temp gauge was just under the middle line but then all of a sudden jumped to up to near the "red hot line", then seconds late went back down to the norm. Whats even stranger is it happened again this morning in the exact same spot (i kid you not). I have checked all my oik and water they are all okay.

Any one have any ideas what this would be?

[Ozzie]

clean the temp sensor & contacts

[Holden Chick]

Thanks for the tip...will give it a go

do you think that would be all...would not be anything serious....shes been well looked after but has reached 241,000 ks?

funny thing it is happens in the exact same place but only on the way to work????

[VN_Luke]

maybe air trapped in the cooling system? has it been bled/flushed lately?

[Ozzie]

Yep if its reading HOT on the dash and you get out to check it (feeling he top & bottom hoses) and its still cold or warm than it will no doubt be a sensor.

Mines been a company car till I got it (im the second owner) and it had 255.000kms (highway kms) on the clock when i got it. I have full service history and its been well looked after.
Its now clicked over to the 261.000 mark and Is still running like a dream.
But after a certain amount of kms or years the contacts seem to get dirty in the sensors and they play up a bit

[Ozzie]

As for it happening in the same spot, maybe its a coincidence, or maybe your parked under or over high voltage power cables and could be interfearing with the ecu

[Holden Chick]

cant say the cooling system has been done recently, had the radiator flushed approx twelve months ago...car is due for a service in a month or so...might book her in and get it done just to be safe

Thanks for the info

[Holden Chick]

lol could be that....when its occurring i am driving by massive power poles...and cables above..

thanks for the tip

[minitsbay]

mine did the exact same thing cleaned the sensors and bleed the cooling system hasnt happened again yet (been 3 weeks so far)

[Holden Chick]

Thanx guys....replaced the termostat, bleed the cooling system (as suggested) and she was fine on the way to work this morning (fingers crossed). Will be flushing the radiator just to be sure.

Thanks again !!