2nd Gen Non-Engine/Transmission Air Conditioning Dilemma

[Wooter]

Replaced - Compressor, Evaporator Core, Drier accumulator, also fan clutch. Freon not leaking and pressures are ok.



Now, when truck is at idle and a hot day, the Compressor will short cycle.

It will run momentarily, start to cool and then cutoff.



When driving at highway speeds, it cools like it was new.



I put the new clutch on & repair shop has done all of the other work.

When I went back to repair shop, and they checked out all of the above, he now wants to replace fan clutch again (thinks that it may be a bad one)!?



Where else should I be looking before doing the clutch again?

 

[budnate]

drop your fan motor and Gentley!! reach up and feal the face of the evap... bet it's loaded with dirt and crap... its really tight... . vacumm it out and then blow it with a air hose... I did mine this summer HUGE diff in air flow in the truck... . also clean the fan wheel it will be loaded with dirt, making it work harder and less efficient, shoot a little WD in the fan motor at the bearings and button it up. I also, had the guage face off and swabbed out the ducts and got most all the old dirt out of the system.



peace, b.

 

[Wooter]

ac problem

The evap core is new and completely clean - replaced both evaporator and heater core when job was done

 

[budnate]

ok, check your motor clutch fan then, sounds like not enough air across the cond coil.

 

[scotmartin]

I also vote for fan clutch. Had the same problem.