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[Hiace2222]

Have a 02 3.2 temp gauge seems to work when car is cold once iv been driving a while gauge drops to zero reading g and red water light on , car is 100% was wondering whether it is a fault with dash clocks or temp sensor ?? Anyone came across this ?
That's an unusual condition that would point to 2 separate faults

Gauge issues normally spade connector on sensor, or dash not fully seated.



//Edit reason - TB had fat finger trouble!

[dave the builder]

Is the coolant level topped up ?

[Chazza12]

check the connection to the temp sensor they have a tendency to come lose and give a bad connection.

[TheBoy]

Have a 02 3.2 temp gauge seems to work when car is cold once iv been driving a while gauge drops to zero reading g and red water light on , car is 100% was wondering whether it is a fault with dash clocks or temp sensor ?? Anyone came across this ?

That's an unusual condition that would point to 2 separate faults

Gauge issues normally spade connector on sensor, or dash not fully seated.

[Migv6 le Frog Fan]

Earthing problem ? 

[Hiace2222]

Checked the connection at the temp sensor and water level is on mark still the same going to check connections on back of the clocks

[zirk]

Checked the connection at the temp sensor and water level is on mark still the same going to check connections on back of the clocks

Gave the top of the Dash a good wack, that sorted mine out for about 2 months before I could be arsed to take the Clocks out and re seat them. 

    ..and if you do start kicking the crap out of it, order some more dash bulbs as well for when you get round the doing the job properly. 

[TheBoy]

Checked the connection at the temp sensor and water level is on mark still the same going to check connections on back of the clocks

With palm of hand on rev counter, press firmly and sharply and see if it reseats.  Not so hard as to crack the glass though!