pajero 2.5 td twin batteries

[astcort48]

two solinoids on mounted on near side inner wing/chassis leg keep clicking for approx 2 mins on start up still charging at 14.75 volts any ideas not affecting cold starting in any way all earths ok new alternator two years ago many xxxxxxxxxxxxxxxxxx

[SHED]

they are the glow plug relays

[astcort48]

many thanks for your reply but glow plug relay on other side by bulkhead

[TinyTim]

Not quite

Glow plug relays are behind the front battery on the near side

Thet are cycled by the ECU in passenger footwell according to time and coolant temperature so if something is wrong with temp sensor or ECU they will continue to cycle as you describe.

[Gandalf]

Not quite

Glow plug relays are behind the front battery on the near side

They are cycled by the ECU in passenger footwell according to time and coolant temperature so if something is wrong with temp sensor or ECU they will continue to cycle as you describe.

  Hi Tim, have a horrible feeling that you have identified a newly acquired 'Clicking' on warm up. In the hope that it is CHEAP - where is the Temp Sensor on a 1993 2.5TDi SWB situated ? [in The Shop?] Mike.  

[Jynx]

dont panic hun.....if it only clicks once a few seconds after turning ignition on thats normal ...if its more than once.....then panic 

[Gandalf]

  DOH! Panic Time Jynx

[TinyTim]

It's a 2.5 Jan - bit different to yours hun

@ Mike the sensor is located on the front right of the head but you need a main dealer for it I think 

[Mudlark]

the glo-plug system on diesels are getting more sophisticated staying on or pulsing for some time after the engine has been started making sure that the engine is at the optimum temperature before switching off the circuit.

This is why fitting a bypass bodge switch is never a good idea as it only heats the cylinders on startup and not during warm up causing the black smoke 



Basically the relays clicking will carry on until the control unit (not the ECU!) reads that the engine temperature is ok. If the clicking carries on once your engine reaches normal operating temp — or doesn't click at all check out the temp sender


Temp sender on the 2.5 is the double bladed one on the top near side front of the head there is a similar one on the 2.8 which may be doing the same job — but don't quote me


So if your glo-plugs are out of sorts — check the plugs are working (use multimeter) if they are check the temp sender is working (again multimeter) — just because your temp readout in the dash is working doesn't mean that your tempsender for the glo-plugs is ok

[Jynx]

It's a 2.5 Jan - bit different to yours hun

nah...what i meant hun...my 2.5 used to click once...then i knew it was time to start engine 

my 2.8 dont make any click..... i just watch the dash lights for the wriggly wire one to go out then start him up 

[SHED]

the glo-plug system on diesels are getting more sophisticated staying on or pulsing for some time after the engine has been started making sure that the engine is at the optimum temperature before switching off the circuit.

This is why fitting a bypass bodge switch is never a good idea as it only heats the cylinders on startup and not during warm up causing the black smoke 



Basically the relays clicking will carry on until the control unit (not the ECU!) reads that the engine temperature is ok. If the clicking carries on once your engine reaches normal operating temp — or doesn't click at all check out the temp sender


Temp sender on the 2.5 is the double bladed one on the top near side front of the head there is a similar one on the 2.8 which may be doing the same job — but don't quote me


So if your glo-plugs are out of sorts — check the plugs are working (use multimeter) if they are check the temp sender is working (again multimeter) — just because your temp readout in the dash is working doesn't mean that your tempsender for the glo-plugs is ok

i have the bypass switch and still get the post heating aswell

[Gandalf]

  Thanks for all your help Peeps - Off to the Main Dealer again 

SHED: Temp Guage runs slightly low and I wondered why; combined with intermittant white smoke on starting from cold. Hom Hum!  The 'Wallet Moths' will be back in intensive care again 

Cheers, Gandalf.