"STOP" light on 405 - HELP!

1.9 non turbo diesel (1996 estate)

I posted a message some time ago about "STOP" light not working.

Shortly after I posted message about dash lights then they started working

80% on start up (After oil change and a bit of Gunk spray clean up on engine block may have caused this - who knows? Weather as been very hot as well)

Bit worried now as the "STOP" light comes on with the temp warning light at irregular intervals when the engine is running and up to normal temp - in fact showing 80C. (Peugeot handbook states 90c for normal temp) Fan operates when at 80c and even when engine switched off /ignition on, will operate down to under 70c.

It does switch off at a lower temp as I waited for 15 minutes and the fan did start but stopped after a few minutes. Unlike my earlier 405 it does not run on for 12 minutes after ignition switch off.

Could this just be a faulty sensor/faulty temp gauge or maybe water pump problem? Rad water level is ok, no sign of overheating, and no cap lift off to discharge water. No sign of bubbles in water etc.

Are the temp sensors colour coded? where on engine block?

Would it be prudent to have a compression test just to see if the head gasket is going - (New head gasket and only done 7000 miles since renewal) No sign of any oil leakage.

Thanks for your help

Reply to
sid
Loading thread data ...

Did you check the oil?

hehe

"sid" skrev i en meddelelse news:42d79fc4$1 snipped-for-privacy@spool9-west.superfeed.net...

Reply to
Reaf

Is there a 2 wired brown sensor switch on the thermostat housing ? If yes then there is a control unit to control the cooling fans & temp warning light.

It is likely that the sensor as developed a bad connecton or failed, making the control unit to go into backup mode. ( i.e. fans running all time & warning light on )

It is the same setup as the Xantia xud ( not HDI )with aircon.

Hope this is any help to you, regards......

Reply to
Reboot

op is that I have just changed the oil - level is ok

Reply to
sid

gave the brown connector a wiggle and the fan stopped - could be a bad connection or going faulty -will get a spare for the scrappie. removing the connector makes the fan go into "Full speed " mode

Hopefully problem sorted

Many thanks for your help.

Reply to
sid

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