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The vacuum was created by a leaking air venturi affair in the under bunk storage. I don't think it would go thru a DOT check now a days. Wouldn't pass, audible air leak! This unit was built using leftover car parts from the fifties and sixties! As Glenn described, the heater controls ran on vacuum. And the switches were from a 66 F-150. I'm surprised they didn't use vacuum for the wipers as well. Good example of using what you have on hand to build something for sure! The MH design blew this out of the water! The MH was the best cabover built by anyone at the time and since in my opinion!

Nothing! You got boost leaks or a lazy turbo in my opinion Have the charge air system checked for leaks and if you find nothing replace the turbo! also depending where the truck is from some trucks were built with a cold weather charge air bypass for quicker warm up if it has this make sure it aint stuck in by pass mode!

Yup 5 speed pto driven off the center section of the trans! pto mounts on the lower counter shaft the lower rear section shaft is hollow to eccept the thru shaft of the pto!

Still needs fuel add as mentioned 70 psi under load min! after that injector up grade!

Wouldn't it be nice if this fixes his problem for good! Yup If your an O/O these days You Don"t dare NOT Buy A super Warrenty And hopfully you earn enough to be down while its being repaired Don't matter whos truck you own! Cummins is everybit as bad for not giving the rats ass if your unit is down . unless you happen to have a fleet! then THEY MITE kiss ass a little!

check to see if air is getting to the RIGHT side! Plugged hose bla bla !Its likely not the foot valve!

Keep the 53s Put more trucks on the road, more employment for everyone! double 33s are counter productive ! for job creation!

WELL Looky there a performance six pack GOOD JOB just pop those babys in there! Like I said AND there's your proof! Only six grand! cheap a twice the price! Are we doing a complimentary Cup Job to top it off!

Usually noticed in the higher rpms! Know engine codes but anything is possible like MPro said lots of different symptoms! You may have injector or injector harness issues If its coding / hard to tell till you look!

Yup amen to that!

The only ones bending over backwards here are guys like MP And myself and others in the field that care about having customers ! The Volvo turds don't give a rats ***

I think MP was looking at the wrong post when he wrote the above ! It is possible that your transfer pump may cause this symptom ! How ever sounds like an injector issue to me!

That's pretty unit MP Hope your right about the C Rail would be a nice change ! Would be nice to have a somewhat Trouble free engine , There's more than enough to do just with after treatment crap!

Collectors item Now ! Bud Its going to be worth millions in twenty years or so if your willing to wait! Funny thing is the Volvo site hasn't removed the D16 we Will have to c how this unfolds!

The symptom you post is the same as if you start the engine with the throttle unplugged! Just sayin!Check the throttle plug!

In my opinion I would lift the lids and check the set due to quality concerns of parts theses days !Before volvo took the raines the quality of reman parts was way better! I do not like remac heads particularly they tend to be sloppy and do not follow wear limits for replacement of guides and valve stems and the quality of the replacement valves and seats them selves are in question! Way back when Mack was mack you could count on getting decent stuff NOT These days!

If it is still building air its likely a lifter failure I believe the compressor inlet it plumbed into the inlet manifold on that year

Yup we've sold quite s few titans here it's a shame to loose the only heavy haul beast we got duno what or if we can replace it we need a heavy unit and the horse power for this area! Its truly A shame they are heading this direction We have some pretty loyal customers here some I have Known for going on 35 years ! Another shame is IF they do Revamp a truck for heavy haul the only power source that will be available Will be the ISX Cummins we will then be in the middle of the its not my problem its your problem game BUCK passing crap that goes on when programing issues come up! And no one accepts responsibility For! All THE CUSTOMER wants is his truck to work! We a then are caught in the middle of this BS AGAIN !

Don t wait to long to have it looked into! Keep us up to date so others can benefit from your findings!

Vmac 2 is one ecm but you still need the harness

Nope THE RD is a tough unit Cams sometimes fail Rocker bolts sometimes break on the newer engines with power leash! I recommend replacing ALL the unit pump bolts if you got the bucks Get the proper bolts from the dealer!

You can give the wd forty penetrating oil thing. it is possible to to free up by removing the pin from the actuator and put needle nose Vice grips on the lever and try and get it working back and forth to free it up IF you do have to go that route and it works out for you. you may need to go back to the dealer to calibrate the vgt How ever if this don't work for ya In my opinion your best to go the two year warrenty route install the turbo your self its a heavy lump by the way! You still are well advised to take it to the dealer recalibrate it! Just my to cents

Not normal! just happens some times!

Thanxz for the post MP No MP I hadn't seen that . All I got to say is what took them so long we've been having issues with this for three years or more All models ! As for the price this may be a record as well we have been repairing them with out the tools for so long they better make it worth while !Ya got to do what ya got to do!

Another indicator related to slaves is more frequent regens if the set gets real bad!