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Valve Adjustment

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I agree with you walter. A "good wrench" would be much appreciated, but we all know finding a good DC diesel mechanic/tech is hard. I feel DC does not train their diesel mechanics enough for them to be qualified to do more than basic to moderate difficulty repairs and trouble-shooting. No offense Dodge-tech, you are one of very few that know what you are doing and we are lucky to have you on the board help with problem. I know this is getting off subject, but Dodge tech do you feel DC adequatly trains their diesel mechanics to be fully qualified to work on the Cummins? I purchased all those training manuals from Chyrsler-tech when the warranty on my '95 expired. After reading them I did not feel any more qualified to work on my truck, I found the training manuals to be rather disappointing. Maybe they are suppose to just supplement the classroom, and going to class is where all the real learning takes place.

What I don't understand is since Chrysler contracts with Cummins to purcahse their engine, then why not the same with warranty repairs? Seems DC could make more $$ since the problem could be taken care of the first time instead of repeated service calls tying up the shop and labor for engine warranty related work.
 
David,

It sounds like a lift pump problem. Check the fuel pressure again. Don,t just check it at idle,but also why,ll test driving it. I think you,ll see that when the truck starts to miss it has low fuel pressure. If you test the power supply to the pump you will likely fine that the volt jumps up and down. Probably why there is so many lift pump failures. If this is your problem just hook up a relayed,switched 12volt supply to the pump.
 
OK, the truck had 77K miles on it, and it is only 2. 5 - 3 years old, why did you have to pay for anything related to this motor not running? I thought both pumps were covered under the Cummins Warrantee?

Originally posted by DavidTD:
We'll she's been to the dealer for an injection pump. She came out running fine. 200 miles +/- later she stalled/quit running just like the last time. Towed it back in and the dealer said they had no codes but would change the transfer pump. This one was not under warranty and cost be BIG bucks.
David
 
Tow pro. Dealer said Lift/transfer pump is not covered under 5/100 warranty. Said it is under 3/36. I think it might be covered under the emission warranty but honestly have not had time to look it up. Need the truck!!

Picked up truck a little while ago. Tech says STAR wants to remove all injectors and have them tested before authorizing replacement. About a week to do that. Just to save the bucks for injectors my truck sits for a week. And could they really be the cause of the truck dieing???? I think I have a flaky ECM at this point. So I guess the big question will become which one is under warranty and which one will be broken.

Truck is dead again in the driveway. Just quit. Lovin it!! #ad


David
 
TD - yes the VA is off and has been off. It is not the VA we know. I am beginning to think it is sucking air somewhere or has a ECM problem. Truck quit again today then after a while I was able to get it fired. Runs real smooth until it warms then starts missing.

Keep the suggestions coming.

David
 
Thought I would pass along an update.

Truck is still not right. So far, new VP44, new transfer pump, new APPS and valve adjustment. Only the VP44 was covered by warranty. Now the truck is sitting at the dealer without injectors as they sent them off to be tested for pop off pressure. I asked if they were going to check to see if I needed the newer style injector tubes. Blank stare..... I said the old style tubes should be replaced with the newer ones that can be reused. If my truck falls in the catagory of early 98's, it will need them. Blank stare then... . I've never of that one before!!

For the life of me I cannot figure out my dealers logic. After they replaced the APPS and adjusted the valves, I heard it runs great, pulling hard all the way to redline now..... but it still has the miss at idle. I guess this was their way of making me feel good about an estimated $600 for the adjustment and APPS.

I'll keep you guys updated. My truck is bone stock now so there are no mods causing this problem.

Argh!!!!

David
 
DavidTD,

What is APPS? My truck also has a miss at idle but it is only when hot. I'm contemplating swapping out some injectors to see if it goes away. Let me know what happens with yours, If anything.

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98. 5 2500 QC LB 4x4 5spd, white. BFG 285x75x16
Cummins 24v w/ TST PowerMAX w/EGT and Boost gauges on A-Pillar. VanAaken CPC. K&N In the factory air box. Stock Injectors, Stock Exhaust (Geno's Muffler Eliminator). Re-routed breather stink tube, 2WD-low kit, SnugTop, JJ Stainless Running boards, Tow Hooks, Bushwacker Street Flares, and a Cup Smoothie.
83,000 miles (1/10/01)
 
Sean - APPS or also known as the throttle position sensor. I was thinking that your problem was fixed.

My truck starts out running smooth as silk. As it warms it develops a slight miss or stumble at idle. When at operating temp, the miss is a solid " thud thud thud " sound. IF you let it continue to idle, it will gradually go away after it has a chance to cool a bit. I just left a message for my service advisor tho check TSB 14-01-98 REV A for the injector tube. I'm not sure where my truck falls but it was built in April of 98 if memory is correct.

I'll keep everyone updated as the saga continues... ...

David
 
yes the lift pump is under the 5 year warranty , the dealer is hosing you big time , i want to say i can't believe they don't know about the transfer tubes , but i'm not surprised . good luck , and have them call star and refund you that lift pump cost . also when you get it back , FIND A NEW MECHANIC ...
 
David, I also have a 98. 5 with 77K miles on it, Yesterday the dealer agreed it needs a lift pump, they called "star?" who said the lift pump is covered under the 5 year, 80,000 Cummins EMISSIONS warranty.


Originally posted by DavidTD:
Thought I would pass along an update.

Truck is still not right. So far, new VP44, new transfer pump, new APPS and valve adjustment. Only the VP44 was covered by warranty. Argh!!!!

David
 
UPDATE:

Injectors are at Bosch. Tech there says the injector pop off pressure is at least 100 psi too low and that the injectors have heavy carbon build up. Carbon build up according to the tech is due to poor fuel. All of my fuel is purchased from truck stops and normally is a QT station near my house. I have requested the Bosch tech comment on QT fuel.

We'll see if this fixes the problem. Hopefully it does as I really need my truck!!

David
 
Good GOD is this still going on? I feel the pain. You're on 3 months of BS. Something is rotten in Denmark. #ad
I will be interested along with others I'm sure on the end result.

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2001 2500 tow, camper, SWB, ETH, Bright white.
 
I had a problem with my truck the other day, as I was leaving after filling up with fuel the my truck stalled and could not ever get restarted again. I have never had any problem what so ever in the first 27,100 miles except for this one. When I crank the motor is turns easily, but does not fire even after 10-15 seconds. I pulled the filter canister and it was full of fuel, I had someone check the drain hose while cranking and there was no fuel running out of it. While cranking the truck did not smoke at all. I did notice after bumping the starter I could not hear the lift pump and neither could the person standing under the hood. I cycled the ignition 3 times and no trouble codes came up in the odometer window (P Done was displayed) So my question is do you guys think it is my lift pump that died, injector pump or both, lots of air in the system? Currently it is at the dealer, but I would like to see what you guys think the problem is.

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2001 2500HD Quad Cab SLT SB 4x4, HO Cummins, 6-speed, 3. 55 gears, LSD, brightwhite/driftwood, 4w ABS, camper and trailer tow packages, HD transfer case, snow plow prep, group, cab lights, Isspro Boost and Pyrometer gauges mounted on A-pillar, 4" JRE exhaust, BD exhaust brake. 27100 miles and counting as of 1/16/01.

1980 CJ-5, Modified for off-road use, bobbed fenders, 350 TBI, NP435 trans, 4. 56 gears, Dana 300, Dana 44 front, Dana 60 reverse-cut rear axle, ARB air lockers front and rear, 15/35/15 Super Swamper TSL on 10X15 steel rims, Cobra CB, Warn 9000I winch, nerf bars, 1/4" steel rock crawler bumper front and rear, jerri can/spare tire rack, custom roll cage.

[This message has been edited by Douglas Hatfield (edited 01-21-2001). ]
 
Douglas,

I wish I could tell you what to replace but I can't. When my truck quit 30 miles after fill up, they replaced the injector pump and it still failed. Then they relaced the lift pump.

If your dealer is refusing warranty, get it in writing. They may decide to honor your warranty rather than put in writing that they will NOT honor it due to an aftermarket part. They cannot automatically VOID your warranty unless they prove the part caused the failure.

Point being, if you fix it yourself, and it is NOT possible for the part to have failed due to the aftermarket part, I would take them to small claims.

Just a thought! Man these dealers and DC don't want ot pay for anything. Are always looking for an out!!

David
 
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