Today i replaced the #3 plug and wire. truck did run better but now the compressor will not kick in and it worked fine on friday, does anyone know if there is a switch or a fuse that i could have bumped on the pass. side of the firewall, I have looked at most of the connections on the compresser and on the firewall,.this is a 98 150 with the 4.6l any suggestions would be appriciated. I would like to see if anyone has a owners manual i could buy for this truck,(fuse block diagram) Thanks again

 

Owner's manuals are available free of charge as a downloadable pdf file from several of Ford's websites including www.fleet.ford.com under the MAINTENANCE heading.

The low pressure cycling switch is attached to the top of the accumulator can near bank 1 on your engine. Check it for solid connection as it may possibly have been disturbed.

Also, check fuse F5 in the underhood fusebox. It runs the HVAC system.

Steve

 

Steve,
Thanks For The Info I Checked The Fuse And The Connection..... Still No Luck Compresser Will Not Engauge, Is There Something Im Missing... This May Be A Job For A Ac Shop Or Dealer, Is The An Inline Fuse To The Compresser That I Could Check?

 

tHANKS FOR ALL THE HELP EVERYONE I DO LIKE THIS SITE,
BACK TO THE COMPRESSOR THERE IS 2 PLUGS ON THE COMPRESSOR 1 ON TOP AND ONE ON BOTTOM, I GOT TO LOOKING AROUND AND 1 OF THE CONNECTORS WAS PULLED OUT OF THE COMPRESSOR THIS WAS THE PROBLEM, I MUST HAVE PULLED IT LOOSE WHEN I WAS REPLACING THE PLUG WIRE, EASY FIX AND NOW MY WIFE HAS AIR AGAIN... THANK GOD