Temperature guage

[T-Cut]

Originally Posted by Phill_190

Could it be anything else other than the thermostat that needs looking into before I get it replaced?

It's the only explanation for the low running temperature. Unrestricted coolant flow keeps the engine too cool. The stat moderates the flow to the radiator. This maintains the normal running temperature near 90C. It's unusual for a V6 stat to 'fail open' in the usual way of things. It would be interesting to see it if you can ask the garage to save it for you.

TC

[Phill_190]

Im going to run the obd temp thing again on the way home from work later... as it used to always go to the 9 o'clock position after a few mins of driving, now it fluctuates up and down depending on speed a lot of the time

[T-Cut]

Originally Posted by Phill_190

now it fluctuates up and down depending on speed a lot of the time

Maybe worth checking for air in the cooling system before spending money. If a bubble is circulating around the head it can cause a false temperature drop on the gauge. Perhaps a good bleed will help matters?

TC

[p2roverman]

Originally Posted by Phill_190

Hey,
Ive noticed my zt 2.5 v6 the temp dial seems to stay around the quarter way up mark for ages sometimes not even going halfway for my 8 mile drive to work, will also drop when going faster. I done obd dash temp thing and was at 76 or less driving at 70mph! What could be the problem?
Cheers
Phill

This problem also scared me when driving my new purchase home last year as low or zero temp reading can also mean NO water. Have concluded it's the stat failed open, and as it's currently a spare virtually unused car I'm not bothered about it yet.

[Phill_190]

Originally Posted by p2roverman

This problem also scared me when driving my new purchase home last year as low or zero temp reading can also mean NO water. Have concluded it's the stat failed open, and as it's currently a spare virtually unused car I'm not bothered about it yet.

Is yours also the v6?

I done the obd reading it does get upto 90-94 but only when sitying in traffic and takes ages on a drive. When i pull off tho it quickly drops down to 70s and occasional low 80s
Cheers
Phill