This problem started on my Cummins late last year,then the winter came and I did nothing about it,now the hot weather is here and the problem still exists.
When I have the A/C on at about 1500 to 1700 RPM the A/C compressor makes a groaning noise and seems to suck power out of the engine. I noticed that the belt is quite tight,and have replaced it in the past.
In the past you never noticed if the AC was on or not but now you can tell as the engine is sluggish with the A/C on.It starts to happen when the engine warms up,at low rpm!s sometimes you hear it,when you turn it on at idle it does not drop the engine speed. It puts out good cold air though,has 685,000 on it.Hate to buy a new compressor at this stage so any advice would be appreciated.
When I have the A/C on at about 1500 to 1700 RPM the A/C compressor makes a groaning noise and seems to suck power out of the engine. I noticed that the belt is quite tight,and have replaced it in the past.
In the past you never noticed if the AC was on or not but now you can tell as the engine is sluggish with the A/C on.It starts to happen when the engine warms up,at low rpm!s sometimes you hear it,when you turn it on at idle it does not drop the engine speed. It puts out good cold air though,has 685,000 on it.Hate to buy a new compressor at this stage so any advice would be appreciated.