Replace Egr cooler only?
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Senior User
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From: Roseburg, Or
Hotshot
Joined: Apr 2010
Posts: 19,055
Likes: 235
From: Saratoga Springs,UT
The cooling system Cap is Rated for 16PSI
A BAD EGR Cooler will OVERPRESSURIZE the Cooling System Same as A BAD HeadGasket/Head/Stretched HeadBolts
A Guess would be Cooilg system Pressure OVER 45PSI would be Bad HeadGaskets and a Given
Anything Less could be Either Bad EGR Cooler or Bad HG/Stretched Bolts/Heads {BOTH} ect...
Your Walking a Fine Line Here
A compression Test would be the best to Determine HG Condition IMO Unless someone has any other Ideas But that's what I would Test a Compression Test Each Cylinder for HG Health
A BAD EGR Cooler will OVERPRESSURIZE the Cooling System Same as A BAD HeadGasket/Head/Stretched HeadBolts
A Guess would be Cooilg system Pressure OVER 45PSI would be Bad HeadGaskets and a Given
Anything Less could be Either Bad EGR Cooler or Bad HG/Stretched Bolts/Heads {BOTH} ect...
Your Walking a Fine Line Here
A compression Test would be the best to Determine HG Condition IMO Unless someone has any other Ideas But that's what I would Test a Compression Test Each Cylinder for HG Health
Thread Starter
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Senior User
Joined: Aug 2006
Posts: 333
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From: Roseburg, Or
The cooling system Cap is Rated for 16PSI
A BAD EGR Cooler will OVERPRESSURIZE the Cooling System Same as A BAD HeadGasket/Head/Stretched HeadBolts
A Guess would be Cooilg system Pressure OVER 45PSI would be Bad HeadGaskets and a Given
Anything Less could be Either Bad EGR Cooler or Bad HG/Stretched Bolts/Heads {BOTH} ect...
Your Walking a Fine Line Here
A compression Test would be the best to Determine HG Condition IMO Unless someone has any other Ideas But that's what I would Test a Compression Test Each Cylinder for HG Health
A BAD EGR Cooler will OVERPRESSURIZE the Cooling System Same as A BAD HeadGasket/Head/Stretched HeadBolts
A Guess would be Cooilg system Pressure OVER 45PSI would be Bad HeadGaskets and a Given
Anything Less could be Either Bad EGR Cooler or Bad HG/Stretched Bolts/Heads {BOTH} ect...
Your Walking a Fine Line Here
A compression Test would be the best to Determine HG Condition IMO Unless someone has any other Ideas But that's what I would Test a Compression Test Each Cylinder for HG Health
So from what i gathered so far i have two options.
1) replace/delete egr cooler and replace oil cooler; test system and hope for the best, or...
2) do the whole 6.0 solution deal for $4000 quoted by a local shop.
Lead Driver
Joined: Jul 2004
Posts: 6,950
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From: Foothills, CA
The best price I got from a "recommended" shop was $6500 for the whole ball of wax (headstuds being a huge piece of the pie).
Benny knows his stuff and something he said stuck out, because I'd already been thinking along these lines but don't know squat compared to most here..., But here goes:
I think the 45psig overpressure if it's an EGR cooler makes sense, but a HG failure would be faster and higher. Not a rocket science opinion but I think cracked degas tank and HG blown goes together nicely.
The truck still runs? I've seen some posts of huge over-pressure in the coolant w/ a HG failure -- did the dealer talk specifics about how they diagnosed one and then the other?? Because if they didn't do a compression test they would have had to fallen back on how quick or high the coolant is over-pressuring.
Back to Benny to gnaw on...
Benny knows his stuff and something he said stuck out, because I'd already been thinking along these lines but don't know squat compared to most here..., But here goes:
I think the 45psig overpressure if it's an EGR cooler makes sense, but a HG failure would be faster and higher. Not a rocket science opinion but I think cracked degas tank and HG blown goes together nicely.
The truck still runs? I've seen some posts of huge over-pressure in the coolant w/ a HG failure -- did the dealer talk specifics about how they diagnosed one and then the other?? Because if they didn't do a compression test they would have had to fallen back on how quick or high the coolant is over-pressuring.
Back to Benny to gnaw on...
Junior User
Joined: Mar 2013
Posts: 54
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x2 on Benny's advice.
He's trying to have you determine the problems with the engine with the least amount of money...and if it so happens that the compression test fails and you do need head gaskets/heads and studs, at least you know what you are up against for sure. Now you can decide on taking on the job yourself or get the shop to do it. Your call...but at least you will know for certain what needs to be done.
He's trying to have you determine the problems with the engine with the least amount of money...and if it so happens that the compression test fails and you do need head gaskets/heads and studs, at least you know what you are up against for sure. Now you can decide on taking on the job yourself or get the shop to do it. Your call...but at least you will know for certain what needs to be done.
Hotshot
Joined: Apr 2010
Posts: 19,055
Likes: 235
From: Saratoga Springs,UT
Right
Any Shop that Only does a Cooling system Check will Want to do Headgaskets Too or they should to Cover themselves
To Much Room for Error with this type test with everything that's in Play at this Point
Don't be Torn do a Cylinder Conmpression Test and KNOW FOR SHURE!!!!
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Thread Starter
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Senior User
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From: Roseburg, Or
Right
Any Shop that Only does a Cooling system Check will Want to do Headgaskets Too or they should to Cover themselves
To Much Room for Error with this type test with everything that's in Play at this Point
Don't be Torn do a Cylinder Conmpression Test and KNOW FOR SHURE!!!!
Any Shop that Only does a Cooling system Check will Want to do Headgaskets Too or they should to Cover themselves
To Much Room for Error with this type test with everything that's in Play at this Point
Don't be Torn do a Cylinder Conmpression Test and KNOW FOR SHURE!!!!
Sounds like they should have done a compression test!!!
Hotshot
Joined: Apr 2010
Posts: 19,055
Likes: 235
From: Saratoga Springs,UT
Yes
Its just Really Impossible For any of us here to make any Judgment since we didn't witness the Testing PLUS either way they Both Put Pressure in the Cooling system
A Guy that's Done it A lot probably Knows the Diffrence
They could be right or Greedy theres all types out there
I know the compression Test takes Longer Diagnostic Time and may even break the GP Harness Just by pulling it off to get at the Glow Plugs so you can get those out to screw in the compression tester to the GP Hole so I seem to notice they try to sell a HeadGasket job instead of this Test
A Compression test will save you Money either way
By not having to go back in if the EGR Cooler Don't Fix
Or By saving you the Cost of HG Job that's unneeded
Cargo Master
Joined: Jun 2007
Posts: 2,723
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From: Roseburg, OR
Listen to Benny. Don't throw parts at these motors that they don't necessarily need if you are on a budget. Remember that new parts are not always 100% perfect, they can fail too. I understand that you are trying to be proactive, but first find out what is actually wrong with it and start there.
Hotshot
Joined: Apr 2010
Posts: 19,055
Likes: 235
From: Saratoga Springs,UT
Also when you Crank Engine Over
Is the Crank Even Sounding???
If the Crank Jumps Fast then Slow sounding Over and Over again Then that may Lead to a Cylinder Down On Compression Due to Head Issues
Steady Crank is Best
But Again just a Guess or Piece of the Diagnostic Puzzel
Where is that Video Guys???
As far as Size IDK for the Fitting IDK Im Shure they all have a Spark Plug Size
We Need to Check the threads on the Glow Plug size adapter
Is the Crank Even Sounding???
If the Crank Jumps Fast then Slow sounding Over and Over again Then that may Lead to a Cylinder Down On Compression Due to Head Issues
Steady Crank is Best
But Again just a Guess or Piece of the Diagnostic Puzzel
Where is that Video Guys???
As far as Size IDK for the Fitting IDK Im Shure they all have a Spark Plug Size
We Need to Check the threads on the Glow Plug size adapter
Fleet Owner
Joined: Apr 2012
Posts: 27,307
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From: Spanaway
To do the compression test you need a tester + this
adaptor to reach into the glow plug hole
The price on Amazon was better than Ebay
The tool you want is an OTC tool part number OTC 6660.
Sean
adaptor to reach into the glow plug hole
The price on Amazon was better than Ebay
The tool you want is an OTC tool part number OTC 6660.
Sean
Posting Guru
Joined: Jun 2012
Posts: 1,171
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I've known many engines (OK, one) to survive being hydro-locked - it's when the EGR cooler is letting coolant in, the engine is being run fairly hard and the added coolant raises the compression ratio above what the gaskets can take that they actually blow. Hydro-locking when the engine is off, and then cranking, can do no damage at all to the gaskets, so each case is different. EGR coolers can absolutely fail on their own, just like a radiator or an external trans cooler, or anything like that. What the OP isn't telling us is what is the oil temp doing, which is step on in deciding if the oil cooler is bad. I am with Blade35 - I wouldn't be changing no gaskets without a compression test if the diagnostic isn't totally obvious. If there is a question, diagnose until there is an answer, don't just drop the rent money on gaskets for a whim.
Brian
Brian