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Yup ! how ever this little issue mentioned here causes a lot of grief for the dealers as well, dam nescience phone calls asking what's this code? is it important ? Bla bla , ! There is no problem making money for the dealers with New equipment of any sort! Mother Volvo IS all about the money and I guess they should be, got to impress the share holders! SELL THEM PARTS BOYS!

Hey Bro ! brain Farts relieve pressure on brain strain !😇 They changed these 3 or 4 times extruded to intruded 9/16 to 15mm and 14mm how's a guy to remember everything your off the hook Buddy! We still love ya buddy 🥰 😂

I have an added sequence when installing injector lines! It involves tightening the the injector down snug then backing it off to just touching tight! Then tightening and torquing the line ! Theory behind this is it allows for the injector to find its happy place if there is any variance in the alignment ball in the head! Not sure if it helps on the e7 but have done this for ever! As we used to have issues with the V8 Lines back in the day, specially when they converted to the Robert bosch fuel pump and were using the ball for elinment on the injector it seemed to help doing this! just something to try if you have a leaker!

Sweet looking unit ! looks like some one looked after it!

Not saying this is the case here BUT! I ran into this years ago ! I would be having the the dealer look in to the torque limit switch on the trans if the switch is engaged when this anomaly happens there may be a short circuit in the to wires heading to the torque limit switch causing the Ecu to think its in low! This will cut the power By almost exactly half no codes ! to eliminate this possibility cut or remove the wires at the VECU that come from the torque limit switch on the trans. just a place to look if your options are running out! Just sayin!

Yup seen this happen many times with Allison equiped units just a hicup in the program settings! take it to a mack dealer have the dealer program the idle back to 650 and turn off the parameter to set the idle with switches! this parameter requires you to hit the clutch switch to set the idle ! you have no clutch pedal so your unable to finish the set sequence!

It all depends on the extent of the damage! usually the cam and the cam followers are replaced!

Egr Venturi tube!

Agree ! The turbo needs to spool to create heat for the regen if the EGR valve is held open whether being told to by the computer or by the turbo being stuck it cant do it! If the DP sensor Or The Ports are clogged under the sensor the egr valve will gradually l be commanded open by the ECU as it thinks there is not enough egr flow !this creates more soot yada yada Its a vicious Circle! this seems to be one of the most common causes of face plugging pf the dpf From what we see at our shop!

Agreed 100 percent! Forgot is a big one for me these days!😡

I Second and third that ! If the truck is running wait till the parts are in your hands and are accounted for ! Specially Worse These days the parts chain is so messed up by the pandemic shit going on! LIsten GOOD!

The other option you may have! is to back the gland nut out and stuff It with a leather shoe lace around the tap shaft and re install the nut just something to try if its leaking around the tap shaft! DO IT When the tank is low!

Could be ! Any truck chassis ! including a Mack mack used that style bumper on several models

just Create and an account under a a bogus name joe blo repairs or something like that I did that just so I can cross reference parts when the parts guys can find stuff I go look for my self! you can order I'm sure

Yes old cam and new lifters is fine ! If the Cam looks usable it probably is! The problem you have there is Your working with an unknown ! And We are working with what you are telling us! In turn we are offering up the best advice according to our experiences! An over speed would constitute anything much over governed RPM !Back in the day this would happen a fare amount specially on a V8 Because these engines were so quiet! It would sneak up on ya on a down hill with the engine brake on! It Would be easy to look down at the tach and say Holy Crap!!!!! 2500 RPM 😡 Unless you got a good ear and tuned in to your unit Its sure to happen ! Very easy to do! Answer to the question Safe max RPM is Governed RPM! the engine can probably tolerate 2600 How ever Do you want to go there??

Yup joe I didn't want to create an argument about it the opportunity arose to correct the statement here so I took it! 😇 The hundred psi statment was not an un truth just old news that had been revised!😌

The pressure started out At 100 psi when the eteck first came out They lowered it as they had trouble with the EUP orings were hard to seal As I said earlier long as the fuel pressure stays between 60 and 80 full load it will run and pull fine ! The key here is the fuel pressure should stay above 60 when under load! When you stomp on the pedal in a no load condition the pressure should Go Up Not Down! The numbers you posted are good numbers! Very reasonable from what I have witnessed over the years! just sayin

So just something to think on Here ! If indeed this engine had an over speed go on! These old style lifters didn't take kindly to being over speed conditions! The work face is brazed on and would shatter or crack! Personally Knowing what I have seen over the years here ! If indeed this engine got over sped and you are doing all this work , its worth the extra 500 or 1000 bucks to pull the cam and buy A SET of lifters from PAI and replace em! We just done a Cam here Sept 20th 2021 on a 88 RB . Mack parts was twice the price PAI did'nt have the cam at that point So we was stuck with the Volvo Criminalized pricing for the Cam but PAI had the new style lifters for a third less! and in this instance the lifters are the weak point! and if the truck has the old style lifters It may be a safe bet to change em! In my opinion Not worth taking a chance if your going this far! Just Sayin!

Build a plate to install under the egr valve ! How ever after several miles /KMs the egr code will come up due to lack of egr flow! On the older engines this didn't effect performance ! I am not sure on the later models if a derate will occur ! the one I did was an 03 - 04 the guy put 1.5 plus Kms on it with out issue!

Check the compressor inlet tube connections at the intake and compressor end!

Good to know thanx for posting your fix!

The fuel pumps on the a feable on these the shaft seal can give out and they can wear to the point they wont pump !

Sorry didn't read the whole post my bad ! no metal in the pan! So I have seen the pump drive fail on these its a fiber coupling ,is it possible for you to remove the top rear cover of the fuel pump 6 -1/4 inch bolts and see if the pump is turning! althou this has nothing to do with compression its somthing to check! But if it wouldn't fire on ether its likley a compression issue as you are saying! In my opinion your heading in the right direction checking the valve set and push rods! If you got bent rods the engine has likley seen an over speed event!

Bro (Take the advice) posted ! Not trying to be an ass here! But were trying to help! you need check the fuel pressure you need to have at min 60 psi prefer a little more how ever.........! Just sayin! Also remove the elbow at the primary fuel filter from the tank and check for debris in it I have seen rags fuel conditioner lid inserts and rocks stuck in this elbow! several times! just some more things to look for! This will likely show up on the fuel pressure check as low pressure when you stomp on the throttle the pressure will drop off if there is a restriction or a loose gear , where normally it would increase some!

Quick check of the pan plug should tell the tale on this if there are pieces on the plug there you likly have a cam failed or the engine has been over speed and bent some valves ! Just a place to start! also you can pull the valve covers and check to see if the push rods are straight!