Temperature gauge reads low

johnnyoxford · Oct 15, 2010

My 200 tdi 1993 90 temp gauge has always never even got off the white at the start, it does mnove a bit, and I have so far tested it with a meter - ruliung out a faulty gauge, and replaced the sender unit with a brand new original land rover one, but the reading is the same, even on long journeys or sat in traffic.

I am wondering if it might have something to do with the thermostat?

Any advice please?

The heater is OK ish, nothing to write home about, but from what I have read on here they are all like that?

Many thanks

Griffdowg · Oct 15, 2010

have you replaced the coolant? have you flushed the system? have you removed the stat and tested it in a pan of gradually increasing temperature?

thought so.

maybe a blockage? do the above before anything else.

G

toutie · Oct 15, 2010

I would check that there is a thermostat in there - the day I bought my 90 it overheated on the way home so i whipped the thermostat out to get me back in one piece - it didnt go above the white after it was out.

If its not there you might have a fun time working out why it overheats with a new thermostat in.

- if it is there, it would be worth testing like Griffdowg said

reg aldershot · Oct 15, 2010

maybe its got a disco sender in it they read low

johnnyoxford · Oct 15, 2010

thanks mate, this is helpful

where is the thermostat supposed to be? sorry to be ignorant.

toutie said:
I would check that there is a thermostat in there - the day I bought my 90 it overheated on the way home so i whipped the thermostat out to get me back in one piece - it didnt go above the white after it was out.

If its not there you might have a fun time working out why it overheats with a new thermostat in.

- if it is there, it would be worth testing like Griffdowg said

johnnyoxford · Oct 15, 2010

I dont think so, I bought a new one, using the LR part number, and it reads exactly the same as the old one.

I def have a defender 200 tdi engine, so I am pretty sure it is notthe sender unit

reg aldershot said:
maybe its got a disco sender in it they read low

Pikey · Oct 15, 2010

thermostat is on the top front of the engine where the rad hose fits on. .

lickyourowntoenail · Oct 19, 2010

i changed my engine from the old 2.5 to a 300 tdi, when changed the temp gauge didnt even move past the white. I was convinced that it was the thermostat cause the heater didnt warm up, it just got slightly warm, changed the thermostat and the temp gauge works so does the heater.

Temperature gauge reads low

johnnyoxford

New Member

Griffdowg

New Member

toutie

New Member

reg aldershot

Active Member

johnnyoxford

New Member

johnnyoxford

New Member

Pikey

Dummy Ejection Facilitator..

lickyourowntoenail

Member

Similar threads