Talca

I called into the dealer yesterday there auto elec bypassed the aircon switch which made no difference but it could still be a faulty wire in the loom somewhere. So I have booked it in for the end of next week and hopefully they can solve the problem.It does have a fan override switch on the dash but no APADS. Thanks Again..

Thanks for that Mackpro. I will take it back to the dealer again and mention what you said. Is there any way the A/C high pressure switch can be by passed.The coolant temp makes no difference to the problem. have checked fuse 41 as suggested by rhasler and it has power to the air switch on the radiator but no ground.

Thanks for your help. I have checked the fuses in the EPDM box.I checked fuse 40&41 again they look clean but hard to see the back of terminals inside box.The problem appears to be electrical because the air switch on the side of the radiator is not getting an earth when the fan is engauged &getting an earth when disengauged.If the fan is engauged and you give it a earth it disengauges as long as you hold the earth.This should eliminate a fan hub problem. thanks again....

I have a 1999 CH with 470 Etec engine. I was on this site a little while ago and had some suggestions to help with my problem but no luck yet.The problem is every time I use the accelorator the fan engauges and when I take my foot off the accelorator most times the fan will disengauge.If I use the cruise control to increase revs the fan stays disengauged .This problem happens weather you are moving or stationary .The dealer has replaced the vechile ECU and all senders that supply ECU. There readouts give no listed faults and the copilot is not showing any faults.Every thing else works perfect. have had auto elecs look and they say every thing tests okay. Some times it will have a good day and the problem is not so bad.This happens weather the engine is hot or cold. thanks for any suggestions....

I have had a auto elec check the air con high pressure switch which was replaced by the dealer. he said the switch and wiring was all ok but I proberly should get it checked again .Thanks

have 1999 ch fitted with a 470 e7 etec engine. having trouble with the fan engauging every time I use the accellerator pedal then most times it will disengauge when take foot off pedal .the dealer has had 3 goes at fixing it they have replaced the vechicle ECM ,air solanoid ,water temp senser , manifold temp senser ,air con switches .this problem has no relation to water temp.regards hoping someone else has come across this problem.