GM Guy
Manual Trans. 2WD Enthusiast
Hey all,
I have come across a 04 Reg cab 8 ft flatbed K2500HD LB7 ZF6 4wd. It is selling on a consignment auction, and is selling as-is. It belonged to an older rancher in the area who has retired, rented the ranch, and is selling off excess equipment. presumably he bought this new.
No rust, a few dents and scratches, nothing major. door hinges seemed to have been maintained, no saggy doors, appears to have been cared for somewhat.
It currently has 132K on it.
Notable service history my GM dealer pulled up includes:
There is NO injector replacement history.
My old man stopped by and checked it over, said when you fire it up, it will puff out a whisp of smoke, but then completely clean immediately after the whisp, and you can hear the engine change tone a little as it smooths out, and within 5-10 seconds of startup it is running smooth and even,
It has zero blowby at the cap.
NO CEL light on. an engine icon lights up during bulb check, and then goes out upon startup. I assume there is no written "Check Engine" or "Service Engine Soon" warning light on these?
But, here is the issue. massive vibration, hood shakes when open, shifter shakes, grille guard shakes, etc.
Is this a positive sign of a bad Dual Mass Flywheel, or could it be engine related?
Dad did say the harmonic damper does move up and down just a little, pulley seems to run perfectly true.
Clutch seems to work fine, but engages barely off the floor.
So, I ask you guys, would you be able to say with 95 percent certainty that this is a bad DMF, or should I fear engine issues? If engine issues are a possibility, what could it be?
I really dont have the need or the $ for this truck, but I want to be prepared in case they give it away due to being as-is and the shake scaring most folks away. Old man has been eyeing the project CCLB DRW for a while anyways, so I am confident I can scrape up some $ to buy it.
@tanman_2006 , you need a ZF6?
Any input appreciated,
Thanks!
I have come across a 04 Reg cab 8 ft flatbed K2500HD LB7 ZF6 4wd. It is selling on a consignment auction, and is selling as-is. It belonged to an older rancher in the area who has retired, rented the ranch, and is selling off excess equipment. presumably he bought this new.
No rust, a few dents and scratches, nothing major. door hinges seemed to have been maintained, no saggy doors, appears to have been cared for somewhat.
It currently has 132K on it.
Notable service history my GM dealer pulled up includes:
- Sleeved a bore at 1,500 miles! :O
- new Flywheel at 15K
- A new instrument cluster at 97K.
After the cluster, there is no history whatsoever. I assume it was off warranty due to age and never returned to the dealer.
There is NO injector replacement history.
My old man stopped by and checked it over, said when you fire it up, it will puff out a whisp of smoke, but then completely clean immediately after the whisp, and you can hear the engine change tone a little as it smooths out, and within 5-10 seconds of startup it is running smooth and even,
It has zero blowby at the cap.
NO CEL light on. an engine icon lights up during bulb check, and then goes out upon startup. I assume there is no written "Check Engine" or "Service Engine Soon" warning light on these?
But, here is the issue. massive vibration, hood shakes when open, shifter shakes, grille guard shakes, etc.
Is this a positive sign of a bad Dual Mass Flywheel, or could it be engine related?
Dad did say the harmonic damper does move up and down just a little, pulley seems to run perfectly true.
Clutch seems to work fine, but engages barely off the floor.
So, I ask you guys, would you be able to say with 95 percent certainty that this is a bad DMF, or should I fear engine issues? If engine issues are a possibility, what could it be?
I really dont have the need or the $ for this truck, but I want to be prepared in case they give it away due to being as-is and the shake scaring most folks away. Old man has been eyeing the project CCLB DRW for a while anyways, so I am confident I can scrape up some $ to buy it.
@tanman_2006 , you need a ZF6?
Any input appreciated,
Thanks!