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The battery is not replaceable, that is the problem. You must replace the ECU, and cat will program it based on your engine s/n...

Interesting. Because of the proportioning valve, and according to that chart, the pressure is a lot greater(3X?) on the front than on the rear, but the rear is twice the chamber volume, so it might take a little longer to release the front... did you lock them up while applying brakes...

Supposedly, you can read active codes on the 3126 using the check engine light. I believe this is done by closing the cruise control set/accel circuit with the cruise control circuit open/not enabled. Cruise control is native to the 3126 engine ECU. Now wether that feature was enabled on the...

Interesting, I would assume this would be with an empty truck, and not one with an extra ton or so of cargo in the bed, even though the initial set-up for the procedure doesn’t stipulate this...:) note the pressure diff between the 1078 and the 1080(cab and chassis only, about 2400# lighter) ...

On the A0, the TPS is a sensor for the transmission only. I believe NDT is correct that it is a 0-5V sensor...

That is what it sounds like. Did the procedure have you setting it for a particular pressure? unless they have some arbitrary pressure spec in mind, that doesn’t make a lot of sense for setting the proportioning valve. I mean the point of the valve is to byas the brakes for varying weight in...

Yea, the manufacture may have a specified duty cycle, but duty cycles are usually imposed because of an inability to dissipate heat. I would guess if this unit can maintain a steady temp when operating, it probably has no duty cycle...

That doesn’t sound right. I would hope there is no way for combustion gas to enter the airstream. But a fuel leak before the combustion chamber might allow fuel to come in contact with the burn chamber or heat exchanger and get heated enough to generate smoke/vapors which are being drawn into...

Wow, an honest 3-1/4” in the floor, I wonder whats in the ceiling? that extra insul in the floor only saves you about 300 BTU/hr at the above temps...

Thats a lot of heat! An 8x8x12 structure has 512 sq/ft of surface area. If it had 2“ of insulation it might make R10? At 70F inside and say -20 outside, crunching some numbers with say 24SQ/ft of R2 windows and one air change per hour, that is around 7000 BTU/hr required to maintain 70F...

No worries, I have gone over this circuit with so many, I pretty much have it memorized:)

How did the wife like your Christmas present?

Good information. The transmission via the neutral start relay provides 24V to the start relay K1 In the PDP. The start button provides a path to ground to energize K1, via the contacts of the starter lockout relay(K24) which disables the starter once the engine has oil pressure. That is the...

One question I didn’t notice in my rapid scan of this old thread, was what EXACTLY is going click when you push the starter button? That will tell y0u a lot about where to look next...

7.5KW is 25,500 BTU...:)

45% of that 120AH is a 54A acceptance charge for those AGM’s, so you might want a larger alt than 50A...

9W-3043 is the cat P/N used in the IT28 tool carrier. It’s 52A@24V and paired with 2 group 31 batteries(100AH/25A acceptance) In series. What batteries are you running? For the 4 battery 6TL config using wet cells 52A would be slightly overloaded trying to meet 60A acceptance charge. With 4...

No it has a low volt cutoff..., but it would be used in conjunction with a charger/maintainer, so I doubt it would ever trip unless one battery gets so bad that it absorbs all the power provided by the charger/within the limits of the equalizer... Now if you are so inattentive as to not catch...

You can get a basic 5A balancer for $25...

Mmmm Love me some magic smoke:)