98 F150 runs hot when ac is on

[quote:ea2c5c6c1c="jaym"]It has a v-6 and 5 speed manual. Only when the ac is on does it run hot. I have replaced the waterpump, thermostat, and had the ac serviced. What could possibly cause this? Any help is appreciated.[/quote:ea2c5c6c1c]

AC fan does it come On? When the AC is on

Blower runs fine, only other fan is on water pump has no elec. fan

[quote:0379d8017e="jaym"]Blower runs fine, only other fan is on water pump has no elec. fan[/quote:0379d8017e]

Run the engine atleast 1 min. at 2K rpm,off it -go spin the fan on the water pump upfront does it spin easily like spinning an electric house fan when its off.

Could be a slipping belt check that too.

[quote:3953f3b1fd="justanold"]HELLO! What you describe is a lack of airflow thru the radiator. you will have to start by cleaning those fins.
Remove the shield covering the top of the radiator. look between the rad. and A/C condenser. see that fuzzy blanket? it has to go bye-bye. read this link. in it i describe how to make and use a tool to do it properly. i can make and ship one to you for $20.00 if you want. your access is from the top.once done you will notice a big difference. if you still have a concern during city stop/go operation you will have to replace the fan clutch. let me know if you have any ??s and how you fare. 8) 8) 8)
https://www.2carpros.com/forum/2003-sable-stops-at-hwy-speeds-when-hot-outside-vt35632.html[/quote:3953f3b1fd]

Can I get one free this is the 2nd time I heard about this magic tool if yes my home addy will be forwarded to your attention. Make sure its insured there's a lot funny/monkey business going on when things get shipped to the pacific side.

Thanks. It seems to have worked. Now I have a brake problem. front left caliper seems to be locking up. rotor gets very hot. I was told that the fluid is bad. If thats the case, wouldn't everything stick??