03 still missing - Page 2 - Competition Diesel.Com

Jballou · 09-11-2017, 10:30 PM

How did you find the problem? Remove the head?

dummins · 09-12-2017, 06:25 AM

I pulled the head. I have studs, valve springs, and push rods for the truck so I figured what the hell, I'll find out one way or the other what the problem is.

SPEEDSHIFT · 09-12-2017, 06:56 AM

Quote:

Originally Posted by dummins

Found the miss. Appears to have dropped a valve seat on #5. lol it's always something thanks for the help. I don't know how to post pictures but it's pretty funny.

So how was the lash good if it has a dropped seat?

Glad you found it though, its always a relief when you find out what the problem actually is. Now just find yourself an 06+ head to rebuild, they have better seats.

dummins · 09-12-2017, 07:02 AM

The push rod had a bend to it must've given it just enough to have some lash.

Striper · 09-12-2017, 06:34 PM

Just be happy that it didn't do more damage. When I dropped one, it wiped everything out. It was ugly.

dummins · 09-12-2017, 08:55 PM

Oh it's getting a full rebuild, heads junk, piston has eaten the cylinder walls and even #1 has an exhaust valve impression. But stuff happens, fix it and move on no sense in dwelling on it.

SixOhh · 09-13-2017, 09:59 PM

knowing is half the battle...

dummins · 09-13-2017, 10:08 PM

Now time to build it, 12 valve rods, later model head, bored .20, balanced rotating assembly, 188/220 cam, springs and pushrods, arp everything. Should be a good combo.

Red Sleeper · 09-14-2017, 12:36 AM

Quote:

Originally Posted by dummins

Now time to build it, 12 valve rods, later model head, bored .20, balanced rotating assembly, 188/220 cam, springs and pushrods, arp everything. Should be a good combo.

All this over a valve seat failure? I like your thinking sir.

dummins · 09-14-2017, 05:03 AM

Well it's gotta come out so why not put some better pieces in. Plus I like rpm. I'm afraid my little gated 63 and 60horse injectors aren't gonna be up to par for the rest of the build. But will see.

gododge99 · 10-30-2017, 05:14 PM

i have a similar issue, stock 04.5, ran really rough so i replaced the injectors and crossover tubes. went to fire it up and have the same issue. like its running on 4 cylinders. no excessive blowby, no cel... i had the engine running and pulled the injector plug for 1 and 2 and it made no difference. is it possible that the injector harness for those cylinders is bad?

RandomHero · 11-04-2017, 08:59 AM

Quote:

Originally Posted by gododge99

i have a similar issue, stock 04.5, ran really rough so i replaced the injectors and crossover tubes. went to fire it up and have the same issue. like its running on 4 cylinders. no excessive blowby, no cel... i had the engine running and pulled the injector plug for 1 and 2 and it made no difference. is it possible that the injector harness for those cylinders is bad?

Yes, the 3 plug connectors are known to have issues.

biggy238 · 11-04-2017, 09:31 AM

Injector connectors exposed to oil are prone to wick, and then the oil in the plug causes a resistive connection.
The ECM will not always fault because circuit diag still has a return path, but then can't flow enough current to actuate the armature.

This is why newer designs use wire impregnated seals for the injector harness.

Sent from my XT1575 using Tapatalk

gododge99 · 11-08-2017, 03:13 PM

alright, were somewhat at a loss. its still missing when its cold. so far we have changed the injectors, lift pump, cp3, injector harness, flushed the fuel, compression test on all cylinders, double checked lash... not sure what to do at this point. im starting to lean towards the ecm being bad?

dummins · 12-24-2017, 01:01 PM

Got it rebuilt and running great.

dummins · 12-24-2017, 01:02 PM

Head, springs, cam from Hamilton

09-11-2017, 10:30 PM	#21
Jballou Name: Jballou Title: FNG Status: Not Here Join Date: Feb 2012 Member`s Gallery Posts: 28	How did you find the problem? Remove the head? __________________ 04, 4x4 short bed 4 door, 48re with 3 disc DPC, billet input, intermediate. HPt by Firepunk. Exergy BMS 50hp

09-12-2017, 06:34 PM	#25
Striper Name: Striper Title: Wildlife Tormenter Status: Not Here Join Date: Mar 2008 Location: Long Island, NY Member`s Gallery Posts: 446	Just be happy that it didn't do more damage. When I dropped one, it wiped everything out. It was ugly. __________________ 03 Dodge-gone... Let’s Go Brandon!!

09-13-2017, 09:59 PM	#27
SixOhh Name: SixOhh Title: EPA unfriendly Status: Not Here Join Date: Aug 2008 Location: Magnolia, TX Member`s Gallery Posts: 1,108	knowing is half the battle... __________________ 07' Silver 2500 5.9 4x4 LWB Goerend 48re-csp5/EFI- T&C Mild Cp3-F1 Apex 7.5 -S369sxe Amsoil Coolant Bypass -Airdog-D&J- Hamilton 188/220 -AFE-ARP Opti-Lube H-Town Off-Road

10-30-2017, 05:14 PM	#31
gododge99 Name: gododge99 Title: Truck In Shambles Status: Not Here Join Date: Feb 2009 Location: Nor Cal Member`s Gallery Posts: 242	i have a similar issue, stock 04.5, ran really rough so i replaced the injectors and crossover tubes. went to fire it up and have the same issue. like its running on 4 cylinders. no excessive blowby, no cel... i had the engine running and pulled the injector plug for 1 and 2 and it made no difference. is it possible that the injector harness for those cylinders is bad? __________________ P Pump 24V Allied Diesel Performance

11-04-2017, 09:31 AM	#33
biggy238 Name: biggy238 Title: Too Much Time Status: Not Here Join Date: Aug 2008 Location: Just North of Wrong Member`s Gallery Posts: 10,859	Injector connectors exposed to oil are prone to wick, and then the oil in the plug causes a resistive connection. The ECM will not always fault because circuit diag still has a return path, but then can't flow enough current to actuate the armature. This is why newer designs use wire impregnated seals for the injector harness. Sent from my XT1575 using Tapatalk __________________ Check out @bdmaximusworx 05.5 Campanella White TDi Jetta 5spd 45.5MPG -Little Sexy '10 Silver F250 CCLB 4X4 6.4L cummins Swapped Insta @trash.panda250

09-12-2017, 06:25 AM	#22
dummins Name: dummins Title: Another moron Status: Not Here Join Date: Jan 2012 Location: Beaver Lake Member`s Gallery Posts: 262	I pulled the head. I have studs, valve springs, and push rods for the truck so I figured what the hell, I'll find out one way or the other what the problem is.

09-12-2017, 07:02 AM	#24
dummins Name: dummins Title: Another moron Status: Not Here Join Date: Jan 2012 Location: Beaver Lake Member`s Gallery Posts: 262	The push rod had a bend to it must've given it just enough to have some lash.

09-12-2017, 08:55 PM	#26
dummins Name: dummins Title: Another moron Status: Not Here Join Date: Jan 2012 Location: Beaver Lake Member`s Gallery Posts: 262	Oh it's getting a full rebuild, heads junk, piston has eaten the cylinder walls and even #1 has an exhaust valve impression. But stuff happens, fix it and move on no sense in dwelling on it.

09-13-2017, 10:08 PM	#28
dummins Name: dummins Title: Another moron Status: Not Here Join Date: Jan 2012 Location: Beaver Lake Member`s Gallery Posts: 262	Now time to build it, 12 valve rods, later model head, bored .20, balanced rotating assembly, 188/220 cam, springs and pushrods, arp everything. Should be a good combo.

09-14-2017, 05:03 AM	#30
dummins Name: dummins Title: Another moron Status: Not Here Join Date: Jan 2012 Location: Beaver Lake Member`s Gallery Posts: 262	Well it's gotta come out so why not put some better pieces in. Plus I like rpm. I'm afraid my little gated 63 and 60horse injectors aren't gonna be up to par for the rest of the build. But will see.

11-08-2017, 03:13 PM	#34
gododge99 Name: gododge99 Title: Truck In Shambles Status: Not Here Join Date: Feb 2009 Location: Nor Cal Member`s Gallery Posts: 242	alright, were somewhat at a loss. its still missing when its cold. so far we have changed the injectors, lift pump, cp3, injector harness, flushed the fuel, compression test on all cylinders, double checked lash... not sure what to do at this point. im starting to lean towards the ecm being bad? __________________ P Pump 24V Allied Diesel Performance

12-24-2017, 01:02 PM	#36
dummins Name: dummins Title: Another moron Status: Not Here Join Date: Jan 2012 Location: Beaver Lake Member`s Gallery Posts: 262	Head, springs, cam from Hamilton