Maxima Man

I cleaned my coolant temp. sensor plug and the cleaned the little plug on the other side of the sensor and as soon as I started the car the fans came on!

( the car had sat for atleast a day and the engine was literaly cold to the
touch!)

Both fans on high speed and it seems like they don't cut off

What do I do to fix this problem please help !!

OHH and by the way for you VG guys what does that screw hole on the back side on top of the air box for ? It has threads and i did not have a 10 mm screw in it!

Do's it need one ?

Thanks Guys ! BTW : Its a 89 max VG

Greeny

iTrader: (43)

What did you clean the sensor with???

Deken

How do you get to that sensor?? I need to do that

Wiking

The problem seems to be in the factory = correct what u did... Possibly ? now no resistance and ECU drops to safe mode =fans on.

Whattodo: Engine off. Plugoff those temp connectors, measure the resistances with u multimeter. Plugin, measure same resistances from ECU pins.

How To & The values are here: http://www.cardomain.com/ride/748507/8

If more q's, then check the site Favorite Links at left

Maxima Man

I cleaned the inside of the conecter with some electronics cleaner spray that was like 8.00 it is supposed to be good stuff, the connecter cleaned up well but the fans never turned on with the engine cold before but now they do turn on at high speed.

Wiking I read your site like it's my second bible,

I just need to know if cleaning the connecter screws things up would dirting the connecter fix things ?

I unpluged the temp sensor and I started the car again and it still had the fans on full speed. ( I guess this means it is in some safe (fan on high) mode)

What is that little black plug on the opposite side of the temp sensor for because I cleaned that plug too (would that cause fans on high speed all the time) ?

Thanks Guys >>>>>>>>>>

Maxima Man

bump...........

Greeny

iTrader: (43)

Try replacing the coolant temp sensor[$20]..You might have messed it up when you cleaned it .....

Maxima Man

bump......... anyone else?

Wiking

IF sensors , wiring ok, then fan relay stuck. There are three (3.-to.5.), one is hi speed [3.]. Snap it with screw driver head, or take out, replace. Under coolant reservoir.



"What is that little black plug on the opposite side of the temp sensor ..." see the pic NO? At right its the temp sensor.

Measure? NO? If not, take it to smbdy who will...