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Thank you. I won't steal your idea for a video. Since I turned this into a whistler turbo story time thread I might as well tell another. Pistolnut bought a Whistler truck near Boerne, TX in 2005. I helped him get it road worthy enough to drive the 130 miles to his house. It ran good, but...

I did some more research about engine braking with the 4L80E. Then I read through my Compushift 90 page manual and found an option for locking the torque converter in any gear. That made me curious so I called them up. I bought their transmission control module 5 years ago mostly based on the...

Sermis, Kwai and I arrived at the 2007 Georgia Rally early. It was held in a state park on top of a mountain. We were looking around thinking we had the wrong spot until we heard a whistle in the far distance. Very faint at first but we knew what it was and just settled in to wait. About 10...

There are no springs inside the caliper to pull the piston back. If you can open the bleeder and not have fluid come out under pressure. Then it seems to me your hydraulic part of the system is correct. Yes, the "new" calipers could have scored or rusty bores that are limiting the pistons...

Easy swap as already written. Just be aware hearing protection is really, really, really needed with the C turbo. Everyone within a mile or more of you will know where you are and what you are doing as well. I love my Whistler but wanted to make sure you are aware of the side effects.

You are fine as Keith wrote. They probably put that label on because of the British positive ground vehicles of the past. Think Land Rover. My 1967 Cooper S was like that until I converted it to negative ground. Made hooking anything up a science experiment.

The interior Buss bar is great if you are a coffee or tea person and get an armored vehicle water warmer. Good for MRE eating and Mountain House meals too.

Yes, the 6 legged ground on the parking brake mount is a great ground for 12 volt stuff. While you are there, unbolt it and clean the contact surface with the truck before bolting it back on again. There are 3 places on your truck that have easily accessible 24 volts. The firewall Buss bar...

Your truck is still 12 and 24 volt, right? If you still have the 12/24 volt set up the rear battery is the 24 volt part of that system and totally isolated from the 12 volt part of the truck until you connect something like a CB radio to it. Then, the 24 volts will let the magic smoke out of...

The safe, no worries way is to wire it to the front battery.

The CUCV alternators have a tachomoter output on the back for the STE/ICE system. Your tach might work off that signal. The best way to make it work and be able to get calibrated is to by the Dakota Digital diesel alternator tach adaptor. I have one on my CUCV engined and wired M715 and one...

That looks good. I started making a plate to do the exact same thing many years ago. Then realized as little as I drive it the oil was going to age out before I wore it out and just let it be. Nice work.

The relay solenoid uses 12 volts to connect the 24 volts from the battery to the starter solenoid. If it is chattering then it is most likely a problem on the 12 volts side of the relay or the relay is failing internally and not giving continuous flow of 24 volts. The only way I can think to...

Glad you got what you wanted. One tip for summer driving the M35. Raise the windows and close the side vents. Then open the windshield as much as you can stand. Once you get above 20 mph it will feel cool. I know it sounds counter intuitive, but it works. I drove a M35 down I-10 from Las...

If you have the FMV paper filled out and the pictures it requires. Nothing else needs to be done legally with a clerk who knows what they are doing. Kindly suggesting they call Austin is your best bet the next time this happens. I have to use that suggestion every time we get a new clerk at...

You are correct that someone switched some wires around. Probably. You are going to have to look up the wiring diagram in the back of the -20 TM and follow each wire going to and from the controller and relay. Something isn’t hooked up correct.

The batteries are in series for the 24 volt part of the truck. However, the 12 volts for the 12 volt side of the truck is pulled from the ground wire of the back battery. I know that makes it as clear as mud. The -20 Technical Manual has a great 75 page electrical trouble shooting section plus...

You hit on the main reason I haven’t even search for exhaust brake information yet. Intuitively it seems turbo damage is a very real possibility. That is why Jake brakes are preferable in my opinion.

Keith, the 4L80E coast in over drive. If 1, 2 or 3 are manually selected it will bring the engine rpm up. But, with no throttle valve or exhaust brake. The diesel just revs but doesn’t really contribute to slowing my 7-8K pound truck on the steep grades. 1st selected would have the engine up to...

Thanks for watching. The Cowdog did do good and I still need to get 1300 miles home with it. But, after the first 90 miles it will all be a gentle decent of almost 5,000 feet.