[khanacross]

hi all ,i have a v6 20ltr 95mod vitara ,problem i have is aircon is not working ,if i push button on dash the car idle changes but the compressor and extra fan DOES NOT start ,, i have checked the under bonnet fuse and its ok ,if i run power to the compressor it does start up ,so that seems fine , any ideas would be greatly appreciated .. thanks khanacross

[christover1]

On my vit theres a sender on the thermostat housing at the back.
If that is faulty, or has a poor earth, a/c won't come on.
It is a fail safe, if motor is too hot, a/c wont work.

Good chance it is a similar problem.
To check, pull wire off, and earth it,
then a/c should work

[khanacross]

thanks for the idea christover1... i just had a look and couldnt see a switch or wire connector on housing ,, is yours a 20ltr v6 ? thanks khanacross

[christover1]

no mines a 1.6 but theres bound to be similarities.

I ended up putting a switch on my dash, to bypass the sender.

[weelz]

Hi, khanacross.
On the left hand side of the radiator you'll find a couple of relays. Check both of these, as one's for the compressor clutch and the condenser fan. Mine had dropped off it's bracket and hung upside down, filling with water & crap when I washed the motor. This fritzed the unit. Replaced it with another, all good again. Good luck finding one though. It seems to be a jap spec unit, and the local suppliers don't carry them. It's a 12v 30amp resistor protected unit. Check your local jap wreckers, that's where I got mine. Maybe grab a couple while your'e there.
They both live in rubber sleeves.(helps to trap the water when they're upside down....)

Hope this helps,

weelz.

[khanacross]

thanks heaps for the info guys .will check those relays tomorrow ... much appreciated .. khanacross

[Jester]

is it cold when you start it bridged? cos it may be a pressure switch cos out of gas too

[khanacross]

big thanks for all responses ,turns out WEELZ was on the money ... checked those relays mine also hung upside down ,filled with crap ,cleaned them up including terminals and away it went . thanks guys ... khanacross

[christover1]

I love a happy ending.

[weelz]

Nice when it's an easy fix, eh?
Happy it worked. Mine was beyond repair.

weelz.