Duramax Diesels Forum Truck of the Week
  #31  
Old 12-27-2016, 01:47 PM
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Originally Posted by JSA View Post
Add me to the list. 2016 Chevy 2500 with Duramax and 12,000 miles. Injector pump blew up. Dealer is going to replace pump, lines and injectors. Truck had Duramaxtuner Sport/Eco installed. They claim they do NOT increase pump pressure.

The only reason I bought a Duramax was because I have a friend with over 1,000,000 miles on his 2006. But obviously he doesn't have the same shit pump on his. I would be livid if I had to pay $10,000 over a German pump built in Mexico exploded in my Japanese powered US built truck. What the **** has happened to this country??
Wonder what actually happened, it's out of the year range for problem cp4 and its way lower mileage then the others reported on here
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  #32  
Old 12-27-2016, 02:10 PM
LML6600DMAX LML6600DMAX is online now
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I would bet bad fuel mixed with a 110hp tune didn't help it any


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  #33  
Old 12-27-2016, 03:50 PM
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This forum is exactly why my truck was converted with fleece stroker an conversion kit. Same time happy bridge kit. Too many horror stories I took pump out an actually threw it in the garbage. My truck had 65,000 on it an no problems. Just a pre caution, simple job doing cp3 on lml.
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  #34  
Old 12-27-2016, 05:23 PM
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A buddy of mine has a 15 that he started smelling fuel & brought it to the dealer, it's getting a new pump
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  #35  
Old 12-27-2016, 06:40 PM
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Originally Posted by LML6600DMAX View Post
You're very lucky they are covering it.


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Why? Because of the tune??
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  #36  
Old 12-27-2016, 06:50 PM
LML6600DMAX LML6600DMAX is online now
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Yes. Most dealers won't warranty a fuel system after its been tuned.


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  #37  
Old 12-27-2016, 06:59 PM
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Originally Posted by LML6600DMAX View Post
Yes. Most dealers won't warranty a fuel system after its been tuned.


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Fantastic.

The only reason I bought the tune was to remove the annoying high idle during regen. Duramaxtuner said they could remove it - lie. Then they told me I would get better mpg - lie again. And now I can't return their tune after my truck blew up and lit $10,000 on fire. For all you guys that like to play with fire and tune your trucks, more power to you. But I'm done with this BS. As soon as I get the truck back the stock tune is going back on it.
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  #38  
Old 12-27-2016, 07:14 PM
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IOWA LLY IOWA LLY is offline
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Originally Posted by JSA View Post
Fantastic.

The only reason I bought the tune was to remove the annoying high idle during regen. Duramaxtuner said they could remove it - lie. Then they told me I would get better mpg - lie again. And now I can't return their tune after my truck blew up and lit $10,000 on fire. For all you guys that like to play with fire and tune your trucks, more power to you. But I'm done with this BS. As soon as I get the truck back the stock tune is going back on it.

The tune didn't cause the failure. CP4 pumps are junk. Just because the newer ones are better, doesn't mean they are worth a dam still.

You either picked some really raunchy fuel, had a fuel filter fail, or got a defective pump.

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  #39  
Old 12-27-2016, 07:17 PM
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Originally Posted by IOWA LLY View Post
The tune didn't cause the failure. CP4 pumps are junk. Just because the newer ones are better, doesn't mean they are worth a dam still.

You either picked some really raunchy fuel, had a fuel filter fail, or got a defective pump.

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Then why does it matter to the dealer if the truck was tuned or not????
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  #40  
Old 12-27-2016, 07:20 PM
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Because gm will look for any excuse to deny warranty. And the technicians will gladly rat you out because warranty work doesn't usually pay enough labor.

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2003 GMC CCSB LLY
Built by me, tuned by me.

2009 ECI Diesel Truck Points Champion
2010 ECI Diesel Truck Points Champion
2011 ECI Diesel Truck Points Champion
2012 ECI Diesel Truck Points Champion

Big thanks to everyone who helps me.

Best 1/8th, 7.29, 98.6MPH (Street tires, fuel only, single Journal bearing GT42 charger) (2010)

Best 1/8th, 6.93, 104.24MPH (Street tires, fuel only, single HX60 turbo) (2016)
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  #41  
Old 12-27-2016, 07:24 PM
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Originally Posted by IOWA LLY View Post
Because gm will look for any excuse to deny warranty. And the technicians will gladly rat you out because warranty work doesn't usually pay enough labor.

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I can not wait to get my truck back (fixed) and remove the tune and forget about all of this nonsense.
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  #42  
Old 12-27-2016, 07:27 PM
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Originally Posted by JSA View Post
I can not wait to get my truck back (fixed) and remove the tune and forget about all of this nonsense.
Sad thing is, it's too late. They can see in the ECM that the truck has been tuned. So consider yourself lucky if they cover this warranty job, get a CP3 conversion done, delete it, and let the truck love a long happy life.
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  #43  
Old 12-27-2016, 07:31 PM
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Originally Posted by Harbin_22 View Post
Sad thing is, it's too late. They can see in the ECM that the truck has been tuned. So consider yourself lucky if they cover this warranty job, get a CP3 conversion done, delete it, and let the truck love a long happy life.
I'm not doing a damn thing else to that truck. You guys are bored and have too much money to waste on modifying a truck. smh
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  #44  
Old 12-27-2016, 07:36 PM
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Quote:
Originally Posted by Harbin_22 View Post
Sad thing is, it's too late. They can see in the ECM that the truck has been tuned. So consider yourself lucky if they cover this warranty job
Too all the new guys thinking about tuning your truck - READ THIS.

If I had it all to do over again I would have never fell into this idiot trap of tuning a $65,000 truck.
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  #45  
Old 12-27-2016, 07:41 PM
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I'm not doing a damn thing else to that truck. You guys are bored and have too much money to waste on modifying a truck. smh
You're on the wrong forum.
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