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Check fan the hub just cause it’s turning don’t mean it’s working

Oh ya that’s the plan the pan sensor( level ) as well all sensors are dollar store quality on most new HD vehicles specially volvo .

FOR NOW? You can repair it anytime you like / but it will never be fixed , with out Volvo admitting that they have a problem with these heads and actually Doing a TOTAL redesign of the head this will be an ongoing issue . they seem to like beating YOUR head against the wall ! AND after all, after Warranty ! Comes YOU PAY and that's what Makes EM happy! AND why build something dependable , you can't make any money that way! 👿

JUST MY OPINION! If the truck is not under warranty it seems pointless to change the ECU unless your still having grief with it throwing codes just hose out the connector a couple of times and resemble it and see what happens! Its and extra 1000- 2000 bucks that you won't have to give TO THE VOLVO TRASH PEOPLE! We have done this dozens of times with good success rate!

Sorry MT I Don't qualify on that one!

They got as far as casting there name in the block anyway! Now with the exception of the external parts Volvo is etched into all the internal rubbish!

Your bro there is the lucky one ! You drew the short straw for sure!( If I were to " like any of them" ) I would say the MP8 Design over MP7 MP10 for less "complication" THE lesser of 3 Evils! can't comment on the CR yet had the valve cover off only one for a sensor change!

Its unfortunate how ever These engines has moved forward or backward which ever way you want to view it with out first addressing the original issues injector cup to injector seal ECT they seem to have accepted this situation as OK for what ever reason OK is good enough for Volvo! So now LETS ADD INSULT TO INJURY. Put more shit under the valve cover on an already compromised set up! Just shows you what the mind set of the management is really like in Volvo land and what kind of a company it really is! KScarbel has been preaching this since the the Volvo thrashers took the brand over and I had similar thoughts as well ! However they are creating work for people and in more that one way . by building and adding to an inferior unit adds more work for us guys that have to deal with the crap !Unfortunately, we can make it work again for awhile But it will never be fixed! Inspiration for a song Hotel VOLVO TRASH!😀 ( we can make it work again ,but it will never be fixed!)🤣

Well that’s predictable ! We haven’t had a lick of problems so far however we only got a few running here so far! Nice heads up thou ! all low kms so far!

https://www.google.ca/search?q=mp8+common+rail+engine+pics&rlz=1C1PRFI_enCA788CA798&tbm=isch&source=iu&ictx=1&fir=xHbxFaAquNcsnM%3A%2CIA9tYRP7RjgZrM%2C_&usg=__ZhcIgkn8Z0_8FqH3lE3nHVBa4L0%3D&sa=X&ved=0ahUKEwixnvfE_cvbAhVDMn0KHYPMB9sQ9QEIKTAA#imgrc=99FKgWY4_jIkWM: google mp8 common rail engine pics

An observation ! There is a spacer under the valve cover with two wiring harnesses entering mid way LH side of the engine on a common rail engine just above the ecu.

compression in the fuel usually!

Was there any timing codes ?

Amen!

In my opinion the pump was likly installed to overcome failing injector cup issue common issue with these now its to the point you need to address the real problem

( Good call V8 ) being an unknown truck if it has dropped a seat and been driven for some length of time the pounding sound will have gone away and you end up with a miss rough running and smoke ! I Also had this happen ! bad news is if this is the issue your repairs will likley include Minimum At least 1 piston a head maybe a liner or two and a turbo aint goin to be a cheap fix these days ! Let us know what ya find!

Bud thanks for keeping us up dated Good find!

aftercooler cracked or turbo or AIR FILTER ??? when you get home and after u check the air filter make a plug for the turbo out put side disconnect the hose from the turbo to the after cooler put regulated air to it 30 psi to start should find any leak you need to worry about! sometimes intake gaskets shit out as well this method will find ALL the leaks. Note you may have to turn the engine a bit by hand to get the valves to close enough to build preasure! MAKE SURE THE STOP IS PULL OUT!!!!! THESSE ENGINES START EASY USUALLY!

What color is the smoke! ? this may help us trll you what is wrong!

well it sounds like ya need to look into the blo by situation that don,t sound good is it puffing at the fill tube? if so you lkly got a bad hole!

Bud its been along go And I don't remember the full parts change sheet did you replace the damper!Is it possible we have an over fueling situation on 1 cylinder!

YES I believe the sensor is mounted on the lower rad just behind the bumper I am not positive why with park brake on either we have trucks that do it at a stop light foot on the brake . jf may be its tied in with the brake lights switch if this is the case this would be the answer to that question!

yup a tee you can use a quick release in both locations there if you cant find that! I highly doubt that will be a stocking item!

Maybe have the truck looked at have them check ambient air temp sensor! and inlet air temp could be getting a false reading from one or more sensors! also make sure the boot is sealing on the hood to the air cleaner!

Periodic heat ? Mode? We have several customer trucks that do this our climate is cool at times only once and a blu moon and have never nailed it down to one thing other than something in the programming telling the truck the incoming air needs to be heated for regening we were told by tech support that that this was periodic heat mode! could be the same instance in your case.