Did the system work before you installed the compressor?

That climate unit could be at fault. Also, the SDLs use a speed sensor on the back of the compressor to turn on/off... if it's bad it could be causing your problems.

Also, when the compressor was replaced the dryer was replaced too correct?

__________________
I'm not a doctor, but I'll have a look.

'85 300SD 245k
'87 300SDL 251k
'90 300SEL 326k

Six others from BMW, GM, and Ford.

Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG]