Time to clean the shop--OR--The injector pump on my truck probably grenaded.

Millwright

Knuckle Dragger
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Was up between Tulsa and Kansas and my truck died while fueling a generator.

All signs point to a CP4 pump failure, not unheard of with the LML Duramax.

Got it home last night with a $600 tow. (Not out of line for a 350mi round trip)

SOOOOO, I'm trying to clear the bay in my shop to get it in and see if the pressure regulator has the devil's fingerprints in it...metal shavings.

When this happens, you have to replace the pump, rails, lines injectors, drop the tank to clean it...and other sundry misery.

Parts run from $2800-$4000+, the stealership gets about $10K-$12K for this job.

I've put over 3/4 million miles on 3 Duramax trucks and this is the first one to fail at 165K mi, so I figure I'm fairly lucky.

There is the option of retrofitting an old style, bulletproof, CP3 pump in it, add about $1K and another layer of complexity.

I'll probably go back stock as I'll keep this truck for another 150K mi...maybe.

Worst part of the deal is pulling all the crap off the top of the motor.
 

kyrsyan

Has No Life - Lives on TB
Always hate the jobs that require pulling a dozen other, non problematic things before I could reach the problem. Just increases the risk of something else getting screwed up.
Here's hoping that you are metal shaving free.
 

Shooter

Veteran Member
yea, I blew the rear main seal on my tractor sunday, was leveling the driveway,, dumped 2 gallons of oil on the ground in a couple hundred feet . its always something
 

kyrsyan

Has No Life - Lives on TB
yea, I blew the rear main seal on my tractor sunday, was leveling the driveway,, dumped 2 gallons of oil on the ground in a couple hundred feet . its always something
Well, on the positive side, the driveway won't grow grass wherever the oil is...
 

summerthyme

Administrator
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Several hours later, a little butter on the fenders, it's in the bay...mostly. :D

To have working room in the front, the back hangs out the door.
That's what happens... vehicles keep getting bigger, garages and shops don't grow!

Our first "garage" was built for a Ford Model A. Squeezing a fastback Mustang in there, especially when winter snow drifts started filling in the driveway, was... interesting! More than once, I had to climb out the passenger door because there wasn't enough room on the driver's side. With *total* clearance of around 20 inches (total, not each side!) you just slid it in, and prayed you wouldn't hit anything, and would have sufficient room on one side or another to get out!

Summerthyme
 
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The Mountain

Here since the beginning
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That's what happens... vehicles keep getting bigger, garages and shops don't grow!

Our first "garage" was built for a Ford Model A. Squeezing a fastback Mustang in there, especially when winter snow drifts started filling in the driveway, was... interesting! More than once, I had to climb out the passenger door because there wasn't enough room on the driver's side. With *total* clearance of around 20 inches (total, not each side!) you just slid it in, and prayed you wouldn't hit anything, and would have sufficient room on one side or another to get out!

Summerthyme

Mill's vehicle is a crew-cab 3/4 or 1-ton pickup (I forget exactly which). *Most* normal house garage bays won't hold one of those (as I discovered when I had one). At best it will be just wide enough to get it in, but the back end will still be 3-4 feet out into the driveway.

Good luck with that injector pump! To hear Alfaman tell it, the quality of GM trucks has declined in recent years, so next time you might look at Ford or Ram. That Cummins 6 is a monster.
 

packyderms_wife

Neither here nor there.
Mill's vehicle is a crew-cab 3/4 or 1-ton pickup (I forget exactly which). *Most* normal house garage bays won't hold one of those (as I discovered when I had one). At best it will be just wide enough to get it in, but the back end will still be 3-4 feet out into the driveway.

Good luck with that injector pump! To hear Alfaman tell it, the quality of GM trucks has declined in recent years, so next time you might look at Ford or Ram. That Cummins 6 is a monster.

RAM 3500, yes the bodies rust out but the Cummins is a dream engine!
 

Millwright

Knuckle Dragger
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RAM 3500, yes the bodies rust out but the Cummins is a dream engine!

Yeah

About that...

'19 and '20 Cummins are using the Bosch CP4 also.

They are already starting to grenade.

As soon as it goes out of warranty, I'd spend the $250 for an Exergy-System saver. The screen on it it fine enough to save the rest of the system when the pump takes a $#it.
 

Millwright

Knuckle Dragger
_______________
Maybe 1/3 done with the disassembly.

Still have to get the exhaust pipes back by the firewall out.

Next time I dive back in, I'll lift the starboard side of the cab and maybe get clearance for those pipes.

50380193153_f95b59d2f5_c.jpg
 

West

Senior
Sounds like a cluster f... and pita.

Best of luck.

Likening my van. Easier to get to the back of the engine, and not to bad getting to the front half either. Changed all the plugs, two coil packs and cleaned up the intake housing/ports, etc..

So far so good.
 

Marie

Veteran Member
I once had to remove EVERYTHING off the top of an engine to do a tune up on a brand new car. Sold it. Back to my old vehicles.
 

Millwright

Knuckle Dragger
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New pump, buried down in the valley.

I'd forgotten how much I dislike wrenching.

50413351768_34775f3bf0_c.jpg


There are some good things I've noticed.

There are no paper gaskets, everything is O-rings and hard metal gaskets.

In the whole mess, I've seen about 4 various sized bolts holding down all the gingerbread parts. Hard to mix them up.
 

Millwright

Knuckle Dragger
_______________
Blew a boot on the intercooler pipe, going to town.

Fixed it in the church lawn.

Most inaccessible place you can imagine.

Made this margarita even better....had to wash the grit down.
 
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