panic !!

[alpinachris2]

help needed Ive noticed over the last few days that my temp gauge seems to "bounce" a bit, but today from cold temp gauge went into the "red" whithin about 5mins .Ive checked the oil and water and both levels are good, Im hoping ive got a duff gauge or something, but dont want to rely on that theory. any suggestions on what it could be, causing it to get "hot so quick "or what i could test to be sure. My car is a 325mk 2 sport cheers

[doog]

Make sure you don't have an air lock in the cooling system. Also check the thermostat is operational.

[Chaos]

assuming its not an actual cooling fault it cud be the SI board on the dash

[alpinachris2]

yeh ive checked for air lock ,and i think thats ok not sure about si board ,but i had batteries replace about 12 months ago ,in the dash .is it not the batteries that cause trouble in the si boards ??

[Ant]

easy check for a stuck stat.

run car til temp is indicated as warm.

turn off, feel hoses for heat, should all be warm

check radiator is at similar temp, if none of the above is 100% then stick a new in in, few quid and worth it for peace of mind

maybe a duff sender too dude, change the brown one @ the fornt of the engine, Ԛ£8 ish dealer only though OK

if none of the above seems to cure the fault......... pull the cluster out and check the earth nuts on the back inside are tight.

[alpinachris2]

yeh cheers ant will swap thermostat and switch tomorrow .Hope it cures it .scarey seeing the temp gauge get hot so quick

[alpinachris2]

well now im stuck .Ive changed thermostat,brown sensor ive taken the instument cluster out ,and cant see any lose earth connections and my gauge still reads hot i dont think the car is over heating because it doesnt boil over even when the gauge is off the scale .can the temp gauge be changed or is it a new cluster i need ,help please

[Demlotcrew]

just the gauge can be changed, ive got one spare Ԛ£10 inc postage?

Andrew

[alpinachris2]

you think its just the gauge thats faulty if so i may need that gauge of you ,ill see if i can find someone a bit closer to me so i can pick one up i am in south wales ,if not ill get back to you cheers