A/C Only works at Idle
#1
A/C Only works at Idle
I have been doing some searching and can't find a solution to my problem. When the truck is in park idling and the truck has warmed up the A/C works great, but as soon as I move it/increase the RPM's it just blows the same amount of heat no matter what temperature setting is selected. All of my position selections work also. Any help would be appreciated.
#3
#4
#6
yeah, Im thinkin thet the orfice tube or expansion valve is clogged .. your statement about it will work @ idle and the when you giv e the engine RPM's it goes off, makes me think the high pressure switch is cutting out the clutch due to high pressure, or could be low on charge , if you can , get some guages whe you get back and post what you find out, will check back when ya post again ..
Keep us posted...
Keep us posted...
#7
Did you recently "top off" the refrigerant? It could be possible that the head pressure is too high and the high pressure cut off switch is opening. Or by the same could be the low pressure clutch cycle switch acting up. Let's see what happens after gauges are hooked to it. Harbor freight has some on sale for 54 bucks, and they work very well.
Thread
Thread Starter
Forum
Replies
Last Post
tur370
12 Valve 2nd Gen Dodge Cummins 94-98
1
05-17-2015 04:00 PM
tur370
Dodge Truck and Cummins Turbo Diesel Forum
1
05-14-2015 08:09 PM