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Don’t know which vim relay specifically but you can probably figure it out. I would start with pulling connector PX33 on the VIM and seeing if you have 24v on pin F1 Of the vehicle side connector. That comes from CB21 via TB1 pin 34. since the VIM relays are the same as the other relays, you...

I don’t know that I would go to the trouble to fit the PTO hydraulics unless I needed high volume hydraulics For a crane or backhoe... Maybe if all the parts were free:) I would put self recovery winching and a lift gate ops into the intermittent category. I am pretty sure I could fit a 24v...

the start button provides a pathway to ground When pushed. That ground path passes thru the start lockout relay K24’s energized contacts. K24 energizes when the main switch is turned on and de-energizes when oil pressure goes over 15PSI To keep you from cranking a running engine. the ground...

you can connect your air compressor to the front red emergency gladhand. It will charge the whole air system thru that port. It also releases the park brake so chock the wheels:) you can unscrew the vent nipple off of a vented gladhand cover. It is national pipe thread port on the cover and...

S is the air supply line in from the wet tank. D is the deflate port you will see a little pressure relief valve in that port. C connects down to the dump/quick release valves and wheel plumbing. The control solenoid vents the manifold into that bottom plastic cover. The line connected to...

I had an annoying slow leak. I pumped the lines full and capped one end and put a regulator on the other and pressurized it to 5PSI And let it set. My primary bowl was the only place I found fuel weeping. It was also looking pretty sad so I replaced the 2 piece unit with a one piece Baldwin...

You might have a little fuel leak/loss of prime... a little air just makes a cold start worse:)

If you havn’t had any brake issues, your 2way check valves must be in good shape...

I don’t think that cover is vented, if vented, it would have a hole in the middle of the domed part of the cover, which is clearly visible, and it doesn’t...

Yep, wrong covers on the front. Just leave them off until you get vented ones... you should also note how much air, if any is venting out those front glad-hand connections. in a perfect world, it should be none, but check valves occasionally leak. If it is a lot, you will need to find the...

The pressure control unit is the manifold that the controller manipulates to control the system. It is located under the passenger dash, an aluminum block with hoses connected to it and a black plastic cover on the bottom. It has 3 solenoid valves under that plastic cover. One is the control...

I don’t think accessing the CTIS controller with software is going to narrow down the trouble code any, as the system only has one sensor And a supply tank pressure switch to report air supply status... 5 flash means the controller did not see something within a set time, or it preformed a...

take some of that red stuff, put it on a plate, heat the plate till it vaporizes and see if it has an odor? What does the bottom of your tank look like, any other material in there that could be causing rust? Next time you get fuel take along a clean clear container and fill it at the same...

The blue brown wires are for the fan control solenoid. That plug connects to PX34... In your video that is the CTIS pressure control unit(PCU). The little part jiggling is the deflate pressure regulator/relief valve. PCU basics: it has 3 solenoid valves 2 closed 1 open, that relief/regulator...

like Coffey said the bolt sticking out is a caging bolt, used to mechanically compress the park brake springs to release the park brakes for towing when you don’t have air to compress the springs...

both front glad-hands need to be vented. If the blue one is sealed and you have a bad 2way check(common issue), it will pressurize all the service brakes just like you stepped on the pedal... If the red one is sealed a leaking 2way check will prevent you from setting the park brake...

that is not the p/n we are talking about. Take the 18 at the end and turn it into an 81... and the 81 is for a 44mm hole... 3500015 is the 1000w version, 81 is the 1500w version. https://www.napaonline.com/en/p/TWR3500081?keywordInput=3500081 those are also pretty expensive, you can find...

Not for this heater. P over IE 1500w(P), divided by 120v(E) = 12.5A(I) of current draw. You need something rated for 15A and an appropriately sized power cable...

Well the video above clearly shows Dave installing a 3500081 in a 3116 block. There are other videos showing others installing the same model in their 3116’s... the documentation with the one I have, like the one dave shows in the video clearly says it is for 3114,3116 and 3126...

The excite voltage superman is talking about is only present when the engine is running/has more than 15PSI of oil pressure. It comes from the de-energized contacts of relay K11, so K11 must be a 5 pin relay... Your battery voltages don’t sound right. The 12 should be almost exactly 1/2 of the...