D2 Governor

Topic: D2 Governor (Read 6382 times) previous topic - next topic

Re: D2 Governor

Reply #50 – October 30, 2021, 11:32:03 am

And it's a pain in the butt because I'm also having air pressure issues with my Jeep Grand Cherokee that has air suspension on it. I've got a leak in one of the connectors for the front shock and while I thought I had a spare connector I can't find it. I've got Parts on order but they won't get here until Monday night and the Jeep needs to go to the dealership to get the nitrogen tank refilled. I've got an appointment Monday but now the parts aren't due to come in until Monday night so I'm going to have to change it to Tuesday. Otherwise used Mopar Parts which are going to be three times more expensive at least. I'm just hoping they don't tell me that I need to change out the air compressor because that would be a very expensive job.

Re: D2 Governor

Reply #51 – October 30, 2021, 11:36:13 am

Quote from: Journey, Roam, Explore – October 30, 2021, 11:30:03 am

Well I changed it out the day before up in Nebraska and initially at idle and at 1500 RPMs while not moving the PS I stayed at 1:30 or below. But once I got on the road yesterday that quickly changed and I was hovering between 130 and 150 psi again. finally I stopped and got out and cranked the wet tank open partially. What came out was water mixed with a white chalky substance so I'm pretty sure that my air dryer is kaput. I left the wet tank ranked and drove on down the road and I was able to keep the pressure is down around 130 PSI. Although there were times again when it would go up to 150. The air dryer was remanufactured haldex from find it parts that I installed last year in Arizona. So not even a year old. I've got a rebuild kit coming to Mark's house in Uvalde and I'll have in a couple days but today I am out for the parts to do the bypass. I think that when I was in Wyoming and dispersed camping and I made a u-turn that I may have jammed that end of the coach where the air dryer is into some dirt and that clogged up my purge valve. I'm not sure if that would be connected with this or not. I guess there's a possibility that my governor was bad but I don't think that was the issue. If anybody has any other ideas I'd be happy to hear them. The biggest question is whether it's the actual compressor but my understanding is that the governor should control that. I have a new governor on order as well just in case.

The compressor unloader valves are sticking if the governor is good and you have too high pressure. Take off the governor and squirt Corrosion X in the compressor out port and let it sit awhile. Might save buying a compressor.

Re: D2 Governor

Reply #52 – October 30, 2021, 11:56:57 am

Quote from: Journey, Roam, Explore – October 30, 2021, 11:30:03 am

I stopped and got out and cranked the wet tank open partially. What came out was water mixed with a white chalky substance so I'm pretty sure that my air dryer is kaput.

Certainly wouldn't hurt to try Chuck's (craneman's) Corrosion X idea (above).

But, even with the D2 governor and the air compressor working correctly, if the air dryer is plugged up inside (due to junk from failed cartridge) then your "high air pressure" problem may still remain.

If you see "water mixed with white substance" your air dryer is most certainly kaput. Fix it when you get the rebuild kit, then see how your air system responds. Pretty sure will make things right.

Highly unlikely you would need a new air compressor.

Re: D2 Governor

Reply #53 – October 30, 2021, 01:12:05 pm

Yeah I agree I'll try the corrosion x idea of craneman when I install the bypass tomorrow. I'll rebuild my air dryer in Uvalde when I get there. I don't think it's the compressor either but twig mentioned it and that scared the heck out of me cuz I know that would be a much pricier fix. I'll let you know.

Re: D2 Governor

Reply #54 – October 30, 2021, 02:13:15 pm

The unloader valves are upstream of the dryer. When working the governor pressurizes the unloader and it tells the compressor to stop making air. I

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Re: D2 Governor

Reply #50 – October 30, 2021, 11:32:03 am

Re: D2 Governor

Reply #51 – October 30, 2021, 11:36:13 am

Re: D2 Governor

Reply #52 – October 30, 2021, 11:56:57 am

Re: D2 Governor

Reply #53 – October 30, 2021, 01:12:05 pm

Re: D2 Governor

Reply #54 – October 30, 2021, 02:13:15 pm

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