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So... many years ago i chased this issue. I could drive the truck fine around town at low RPM's. I would get on the highway and at about 1600 RPM's or 28 PSI of boost, the truck acted like I shut it off. It would dump boost. It was the new boost sensor. It was the wrong part number for that VIN. turns out there are a few of them and all of them have a different voltage range on its 5 volt circuit. The one in my case was 1.5 volts (if I remember correctly) different than the correct sensor. Its been about 17 years ago.. Maybe Heinze can figure out the part number, and Mackpro is great with these sensors and such..

Ive been at the top in spring time and it was snowing. What an amazing place.

Thanks a lot for response.

Yeah I replaced it about a month ago

Weather on top of the rock pile at 2300. Frez Fog / Blowing Snow 1.3in. 60mph winds / 93mph gust Temp -13.6F with wind chill of -53F. .....Hippy

I think we need a little more information on what engine he has. terry could be a 673, 711, or a newer transplant 🤷‍♀️

What is the status of your other fuel tank. I gave Aaron Tipton of Burnsville NC the spare 75 gal (??) I had when I sold him my 71 358.

I was just thinking about that thing short while back

lol I’m expecting back burner… Bob

I’ve got a 2015 Mack Pinnacle CXU613 with the MP8 in it. The previous owner had the truck deleted when he first purchased the vehicle. I am not sure how they deleted the DEF system but it does look like the one box had been cut open and welded back closed. There is a CEL on, everything is related to the DEF system. The regen light has recently been coming on and off while driving and the exhaust temp gauge has been running high, not sure if there’s a correlation there. The problem I’m having is when under load and even empty just pulling a flatbed the truck feels like it hits a wall when getting on the highway and doesn’t want to pick up speed. I’ll be in 7th gear and I’ll get up to 40/45 and it feels like it doesn’t want to go. It takes a while to get up to 65 and if I have to climb a hill forget it I’m dropping down to 35/40, even empty I’ll drop down to 55. I just had the gaskets on the exhaust manifold, the turbo, and the egr all replaced along with new piping from the turbo back to the one box. No leaks. I’ve talked with a mechanic he believes it could be something with the program they put in when deleted the truck and or the truck needs a valve adjustment. Any insight would be much appreciated. Thanks

So you need one 675 Jake housing? They are out there, but only needing one will likely be tough to purchase as most as sold in a set.

That too . I was referring to the yellow one.

@h67st what ever happened to this project? Was going through the Brockway threads and remembered this one from a while back….

Top notch work on the bumper,looks great.Finnishes the front off nicely... Paul

i dont think they came with one,welcome aboard, ,bob

I guess im doing something wrong i tried 4 times to get somewhere on this site I am computer illiterate lol I say but im using my phone i have a 61 B 61 with a missing Jake

Hi guys it was the hot pipe leaking guess the clamp didn’t quite seat. I worked the truck today and it worked great all day then to night just before I parked it engine light came on and have the p0403 code again what else should I do I need to do looking at?

Oh my God that thing looks like it belongs on dark shadows something they dug up in the backyard

Starts at 1:17 Q & A at 2:38 .

Hi Mark, you got that right, there is a brown one under the work bench!

Tom, You move to Conn this one here can be your elected Democrat Federal Rep! This is Rep. Rosa DeLauro! .....Hippy

I swapped the old lock down style for the screw down version in my 300+. No issues. I did end up buying a screw down model as things are tighter around the pump on the 300 and that bailing ring would be a nuisance. I never needed to pump it, the original pump was broken and I just needed something to screw into the transfer pump.

Still looking

Yeah, I did have her too except she had blond hair. Mrs. Smith, English teacher, total bitch. English teachers were the worst for me, I had a couple of them that I just couldn't seem to get along with.

She's giving you the " you're paying attention to another dog " look.