HELP: Truck Wont Start After Pretty Big Upgrades - Dodge Cummins Diesel Forum
07.5 - 09 3rd Gen 6.7L Performance Parts Discussion Discussion of Performance Parts For the 6.7L Trucks...NO ADVERTISING

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post #1 of 54 (permalink) Old 10-04-2016, 03:04 PM Thread Starter
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HELP: Truck Wont Start After Pretty Big Upgrades

Hello,

I put the following things on the truck.
1. GDP intake horn
2. Hamliton springs
3. Hamilton push rods
4. ARP 625 studs
5. Firepunk compounds.

Originally I went to start the truck and it would run but sounded strange, like the timing was off. I then realized that I forgot to plug in the air temp sensor and (what I think) is the maf.

After plugging in those two sensors and cranking again, the truck ran better and sounded better for about 2-3 seconds and then stumbled and died.

Then I used efi live to remove the factory VGT since it was the only code that I had.

I cleared the codes and tried again but the same result. The motor is shaking alot and puffs of grey smoke is coming out of the tail pipe. The motor turns over but the engine never fires. After it is done I go back to the tail pipe and I can see white smoke coming out.

Please help!


2007 6.7L - FP Compounds, Carrillo, Hamilton cam/pr/springs, QSB, ARP, GDP, ATS fuelers, Aeromotive LP, 350% overs, BTS 4r100, etc. -
2001 CDT 24V Auto BHAF & shield, Edge, FASS
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post #2 of 54 (permalink) Old 10-04-2016, 03:08 PM
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Check your valve lash. It would have to be WAY out, but with the parts you installed, that's the first thing I would check.

04 CCLB 4x4 DRW... Short rod 6.4 build, treated peened and polished England's, 80%S&S, 10mm S&S CP3, AirDog 4g, 58/65/14 - 75/96/132, 103# springs, HD pushrods, ARP's EVERYWHERE, Fluidamper, ATS Stage 6, 5" one PC driveshaft. HPTunners by Larson Miller. 674hp & 1,369 TQ. Old 5.9 numbers.
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post #3 of 54 (permalink) Old 10-04-2016, 03:11 PM Thread Starter
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Funny you mentioned that because after installing the springs, push rods and putting the rockers back on, I had to back every one of them off a fair amount. Is this normal after installing springs/push rods. I did check the push rods and they were the same length as the factory

2007 6.7L - FP Compounds, Carrillo, Hamilton cam/pr/springs, QSB, ARP, GDP, ATS fuelers, Aeromotive LP, 350% overs, BTS 4r100, etc. -
2001 CDT 24V Auto BHAF & shield, Edge, FASS
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post #4 of 54 (permalink) Old 10-04-2016, 03:43 PM
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I would say that's not normal since your new pushrods are the same length as the OEM... But even if they were longer/shorter, you would still need to actually set your lash correctly anytime you work on the valvetrain.

04 CCLB 4x4 DRW... Short rod 6.4 build, treated peened and polished England's, 80%S&S, 10mm S&S CP3, AirDog 4g, 58/65/14 - 75/96/132, 103# springs, HD pushrods, ARP's EVERYWHERE, Fluidamper, ATS Stage 6, 5" one PC driveshaft. HPTunners by Larson Miller. 674hp & 1,369 TQ. Old 5.9 numbers.
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post #5 of 54 (permalink) Old 10-04-2016, 03:50 PM Thread Starter
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I did set the valve lash to .010 / .020

i thought the new springs would have thrown everything off.


I also had to remove the injectors to install the new springs. I made very sure that each of the injector holes were orientated towards the feed tube and that the feed tube 'clicked' into place. tube nuts were torqued to 37 flbs except for the back one that I had to guestimate

2007 6.7L - FP Compounds, Carrillo, Hamilton cam/pr/springs, QSB, ARP, GDP, ATS fuelers, Aeromotive LP, 350% overs, BTS 4r100, etc. -
2001 CDT 24V Auto BHAF & shield, Edge, FASS
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post #6 of 54 (permalink) Old 10-04-2016, 04:08 PM
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We're you careful when tightening the electrical connections on top of the injectors ? I know if they are over tightened it will damage the solenoids. Torque is very minimal. Like 10 inch pounds or so IIRC.

04 CCLB 4x4 DRW... Short rod 6.4 build, treated peened and polished England's, 80%S&S, 10mm S&S CP3, AirDog 4g, 58/65/14 - 75/96/132, 103# springs, HD pushrods, ARP's EVERYWHERE, Fluidamper, ATS Stage 6, 5" one PC driveshaft. HPTunners by Larson Miller. 674hp & 1,369 TQ. Old 5.9 numbers.
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post #7 of 54 (permalink) Old 10-04-2016, 04:15 PM
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you could check the resistance of each injector. Disconnect the leads, and measure resistance across the injector posts. Should be .5-.8 ohms I believe.

04 CCLB 4x4 DRW... Short rod 6.4 build, treated peened and polished England's, 80%S&S, 10mm S&S CP3, AirDog 4g, 58/65/14 - 75/96/132, 103# springs, HD pushrods, ARP's EVERYWHERE, Fluidamper, ATS Stage 6, 5" one PC driveshaft. HPTunners by Larson Miller. 674hp & 1,369 TQ. Old 5.9 numbers.
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post #8 of 54 (permalink) Old 10-04-2016, 04:49 PM Thread Starter
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well I went out to check the valves and i found this which is very strange. The oil is brand new rotella.

This is very strange, I just replaced one bolt at a time when I did the studs. I never took the head gasket off.
At the moment I dont have antifreeze in the radiator, I just filled it with water to check for leaks.

I also did a fleece coolant bypass.

Radiator is clear (it is just water for now)


2007 6.7L - FP Compounds, Carrillo, Hamilton cam/pr/springs, QSB, ARP, GDP, ATS fuelers, Aeromotive LP, 350% overs, BTS 4r100, etc. -
2001 CDT 24V Auto BHAF & shield, Edge, FASS
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post #9 of 54 (permalink) Old 10-04-2016, 05:27 PM
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Damn. That's not good...

04 CCLB 4x4 DRW... Short rod 6.4 build, treated peened and polished England's, 80%S&S, 10mm S&S CP3, AirDog 4g, 58/65/14 - 75/96/132, 103# springs, HD pushrods, ARP's EVERYWHERE, Fluidamper, ATS Stage 6, 5" one PC driveshaft. HPTunners by Larson Miller. 674hp & 1,369 TQ. Old 5.9 numbers.
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post #10 of 54 (permalink) Old 10-04-2016, 05:29 PM Thread Starter
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well the hg was working great before i started this build. is that what you are thinking it is?

what could have caused this???

2007 6.7L - FP Compounds, Carrillo, Hamilton cam/pr/springs, QSB, ARP, GDP, ATS fuelers, Aeromotive LP, 350% overs, BTS 4r100, etc. -
2001 CDT 24V Auto BHAF & shield, Edge, FASS
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post #11 of 54 (permalink) Old 10-04-2016, 05:31 PM
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I don't think anything but a head gasket could cause that... Except a cracked head/block.

04 CCLB 4x4 DRW... Short rod 6.4 build, treated peened and polished England's, 80%S&S, 10mm S&S CP3, AirDog 4g, 58/65/14 - 75/96/132, 103# springs, HD pushrods, ARP's EVERYWHERE, Fluidamper, ATS Stage 6, 5" one PC driveshaft. HPTunners by Larson Miller. 674hp & 1,369 TQ. Old 5.9 numbers.
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post #12 of 54 (permalink) Old 10-04-2016, 05:32 PM
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Did you mess with the oil cooler for any reason ?

04 CCLB 4x4 DRW... Short rod 6.4 build, treated peened and polished England's, 80%S&S, 10mm S&S CP3, AirDog 4g, 58/65/14 - 75/96/132, 103# springs, HD pushrods, ARP's EVERYWHERE, Fluidamper, ATS Stage 6, 5" one PC driveshaft. HPTunners by Larson Miller. 674hp & 1,369 TQ. Old 5.9 numbers.
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