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1 hour ago, HarryBiron093 said:

That’s a great idea I will check the vecu tomorrow. I do remember there being dampness on the passengers side floor so I will see if I can replicate the symptoms. 

The fuel pedal has a close relationship with this also !

7 minutes ago, Joey Mack said:

The fuse panel in the cab, right side

Another place you can look here is the Vecu check the plug to this its under the  mid dash and unfortunately its mounted wire side up and if the windshield leaks it can cause gremlins if water gets into the plug or The ecu itself!

5 minutes ago, Joey Mack said:

Dumb Me..... I see the outline of the cab where the hood comes down..  R model it is..

Nope not dumb !  I just think your glasses were smudged ! 🤣

5 minutes ago, Joey Mack said:

That is the starter relay, the ground breaker is all black and looks like the starter relay. Look on the fire below the center of the windshields.  Is this truck a CH or CX?

look down by the cab mount Joe!!! nit switch! ground fault has black wire I believe  you are correct on the relay! looks like an R model!

12 hours ago, mechohaulic said:

Thanks to all the replies .I was very hesitate about asking what's a grade gripper . always willing to learn new stuff .knew it was a "bad thing" when explanation said ;;new age idea. new age phrase came in during the '70's  and it meant bad news then and still today I guess. 

Yup mechanic is our pronoun  ! Not a technician! How ever there are a few here that qualify as Techs ! 🙄

did you clean the connections to on that night switch? and the battery's?

2 hours ago, Joey Mack said:

Mech,  grade gripper replaces the driver using his trolley as a hill holder.. just more crap.  

Layers of it Joey! They had to implement this or the 10000 dollar clutch would burn up! As much as this trans works amazingly well when it screws up its pricey ! Provided all is working in harmony all is good! BUT if anything is out of tune get your wallet out ! I stopped by the shop last week the boys were doing an Mdrive clutch and front section re and re as it was to expensive for us to replace and input bearing they exchange the main box! Parts changing not mechanicing

35 minutes ago, 67RModel said:

It is a new age nanny device to help "drivers" who don't really know how to drive a manual transmission actually drive a manual transmission. It keeps air pressure applied to the service brakes for a period of 2-3 seconds after releasing the foot valve. This is supposed to give someone time to get their right foot over to the throttle and start giving the truck fuel and not roll backwards if stopped on an incline. Hence the name "grade gripper" 🙄

Yep ! the New Age! If you stomp to hard to fast it will likely  derate on you 🙄! 

1 minute ago, Joey Mack said:

Yep, and the tool set for M-Drives is very expensive. We had to buy it, however, we were not allowed to repair the main box. We had to send it out as a core and install a new reman box. So the tools just sit there on the shelf

EXSATLY 

9 minutes ago, Joey Mack said:

Mech,  grade gripper replaces the driver using his trolley as a hill holder.. just more crap.  

Layers of it Joey! They had to implement this or the 10000 dollar clutch would burn up! As much as this trans works amazingly well when it screws up its pricey ! Provided all is working in harmony all is good! BUT if anything is out of tune get your wallet out ! I stopped by the shop last week the boys were doing an Mdrive clutch and front section re and re as it was to expensive for us to replace and input bearing they exchange the main box! Parts changing not mechanicing

21 hours ago, mechohaulic said:

now there's a positive for my morale; I still remembered it was an 1 1/8th lock nut. ambitious  person could take an old short screw driver attach (almost said braze it ) a piece of 1/16th ? flat stock long enough to reach across the exhaust adjuster to end of screw driver . some times it was challenging to use flat screw driver to hold only one side of adjuster while tightening 1 1/8 lock nut. as with many fancy/expensive tools today = not using them regular why spend the $$$$: make one.

They offered up lots of special tools over the years most never used by me! Always had a work around for most! to this day they make the dealers buy" essential " tools many of them virtually not needed  for everyday use! The first tools they sent us when the Volvo guys took over was brackets to remove the engines with! This instilled confidence that the product was going to have longevity I guess🤣 ! 🙄

4 minutes ago, steve r said:

In Enfield from what I understand the grade gripper is on auto trannys it  is tied into the ABS system the tranny and air system

like you this is to new a unit for me to understand. 

Correct! its all inter connected when the Mdrive is used!

if it were the griper you would think all the brakes would stick! Modulator valve comes to mind here for me! Try some brake line antifreeze !

On 2/19/2024 at 8:08 AM, Kolehamilton said:

 

Sprayed WD40 into the compressor intake and blew air into it with a shop compressor. It’s building now. 

Good job! The unloader on these used to stick common issue! You can buy a head replacement kit for the single cyl compressor!

20 hours ago, Vladislav said:

So do E9's drop a seat just after the engine shut off with no a few minutes idling before that?? Honestly dropped seat idea sends shivers up my spine relating to any vehicle. Regardless I've never experienced such "luck". BTW if it's fallen could it hang on the valve plate for some while before fracturing and meeting the piston and liner walls?

The sequince idea looks realistic. So lay outs of the same kind with car engines.

Vlad AS I mentioned the situation compounds and any number of scenarios is possible ! not sure this about other engines the 8 665 866 also had the same issue BUT it was two valve ! The seat would just come loose and make a pop pop sound when being shut down , being a bigger seat it would not break up or fall out the four valve seat was much smaller more fragile ! It is defiantly not pretty when it happens and the chain of events expensive!  

You have all the tools you need!               
man 11/8 wrench a flat blade screw driver and your thumb!

42 minutes ago, Mark T said:

I don't get this one (lol)  Haldex slacks work very well. That one's serviceable life has come to it's end. The nylon bushing is worn , you can see where the clevis was on it and it's been greased.  It even has black paint left on it.  It's just worn out, and likely had a long life already. 

I am also a an auto slack hater just an excuse for dumb ass people to not know what to do in some cases these guys are hearding  tanker bombs down the highway if they are relying on auto slacks that aren’t working they are flirting with everyone’s life!

10 minutes ago, Vladislav said:

Do you mean bad spray pattern? 

Sorry for the dumb question.

yes bro! running Bad timing can cause this to! this engine has appeared to have run low on coolant the liners are All scuffed and the  end result it took out the bottom end! Just abused ! In my opinion in order of failure>  Valve seat dropped they kept running it and then it likley cracked a liner and lost coolant and over heated kept running it GAME OVER! Seized a rod! So many things can compound when a seat drops and you keep running it If your luck you don't grenade The engine like this one! Most often when these seats dropped  it happens as your shutting the engine down it leaves just enough time for a piece to fall out  so when you go to start up next cycle your engine has a pounding knocking noise! and you Say WTF!😡

16 minutes ago, dogg rescue said:

I failed to mention, the cable is brand new. 

So if the cable is new did you replace it? Or was this done prior to you Owning it! If this truck was born with an air assist and it was removed before u owned it look for any random Capped off air line tucked up in the frame on that side! The levers on the trans and pedals have different  geometry  Shorter arm on the trans! Also the Clutch itself May be A non Easy Pedal Clutch ! Or is incorectly set!

https://www.eaton.com/us/en-us/catalog/clutches-and-brakes/easy-pedal-advantage-clutch.html#:~:text=The Eaton Easy Pedal Advantage,Contact Eaton

Above is the usual clutch used in the application with out an assist! Try stay away from a solo auto adjust if you got to replace! They tend to fill with clutch dust and cease to adjust them selves properly! 

Mark nails this one ! In my opinion ! Replace the cable ! But there is a slim chance it has an air assist in which case you may have a bad slave!

Yup injector spray will cause that !

So look at the power tower where the pump mounted! This is and 89 engine Correct ? Does the power tower have extra un used plugged off holes?  Some where in this era they were transitioning to Inline pumps and the power tower was drilled either or and plugged off accordingly to the Pump installed! they also did this on E7 when they transitioned to R Bosch!  It was only a short period of time this happened!

11 hours ago, Supermutt said:

Fred, Iam not sure how long it ran. I just picked up the engine yesterday for parts. The head looks ok so far after pulling the pieces of piston off it lol.

 Here’s a pic of the head that was on the broken piston/liner. I will continue stripping the engine tomorrow. Not sure if you saw my message I sent you on my truck and rad psi issue ? 

sorry I Didn't see your reply ! I once ran across one of these that the engine ran so long after the failure the only noticeable thing was a miss ! no banging sound! The piston was in similar condition !the peices were pounded into What was left of  the piston The picture you show there it almost looks like a cracked liner as well ! They tend to crack near the top also   

10 hours ago, Supermutt said:

Fred, Iam not sure how long it ran. I just picked up the engine yesterday for parts. The head looks ok so far after pulling the pieces of piston off it lol.

 Here’s a pic of the head that was on the broken piston/liner. I will continue stripping the engine tomorrow. Not sure if you saw my message I sent you on my truck and rad psi issue ? 

sorry I Didn't see your reply !

Did it come with a Fuel pump?????

I once ran across one of these that the engine ran so long after the failure the only noticeable thing was a miss ! no banging sound! The piston was in similar condition !the pieces were pounded into What was left of  the piston The picture you show there it almost looks like possibly a cracked liner as well ! And likely a cracked counter bore! They tend to crack near the top where the  top ring stops ! That is my concern for your running engine ! the only way I know of  to isolate this  is to remove the cross over at the rear of the water manifold and fab up some riser tubes with drain cocks on the top (  WE actually built a set of theses)  and run the engine and watch which side develops bubbles!  By the way! Did you check the head bolts on the running engine bottom corners ??? The problem with a v eight is you can't take the Water pump out of the equation like an e6 / e7 !  Makes it harder to nail down!