coolant Temperature Sensor - HELP!

[davelittlewood]

Evening All,

Just tried to replace the engine temperature sensor (has some shunting problems so I thought I'd rule this out as a possible cause before I start hunting else where)

Bought a new Lucas part from a reputable TVR spares shop and tried to fit it this afternoon.

It took some force to break the old sensor free but then it came out OK. I checked the threads and no sign of aluminium threads on the sensor, so far so good.
It was stuck in with some glue/sealant.

The new one went in OK but I couldn't even get it finger tight with the socket. It just never got there.


First thought was 'Oh C**p, I've stripped the thread in the manifold' so I carefully took it out and had a look.
Threads are all fine!!

I gripped the probe part of the new sensor in a vice (with some rubber to protect it) and the plastic cover part simply rotates on the brass sensor body!!

Anyone else had this happen??

I'll get a replacement next week.

Should I seal the new sensor back in place and if so what with?

Cheers,

Dave

[davelittlewood]

Yep!

Measured the threads on both.

The plastic isn't bonded to the brass part on the new sensor so I'm pretty sure it's knackered

[davelittlewood]

Odd, it says Lucas on the part

[davelittlewood]

Sardonicus said:

davelittlewood said:

Odd, it says Lucas on the part

OK then your right im wrong

Wasn't arguing with you just saying that it's a bit odd for the part to say Lucas if it can't be.
If it isn't a Lucas part then surely it's illegal to market it as a Lucas part??

[davelittlewood]

Dealer is sending me a replacement unit.

Said that they have had a dodgy batch in the past but no recent problems.

I'll try the replacement unit and see what happens. I can get the brass version from a local auto electricians so I'll get one of them too

Dave