Engine/Transmission (1998.5 - 2002) Just returned from dealer.....

[cwarner]

Well I checked my lift pump using Briar Hoppers gauge and had 5psi at WOT so I figured the pump is on it's way out. Also the truck did seem a little sluggish lately , I just figured it was the heat and high humitity.



Well the dealer checks the pump a different way and say's it's in speck and then flashes the ECM with TSB 18-024-00. The truck does seem like it has a little more low end and I guess I will have to keep an eye on the Lift pump and when it goes to 0 I will have to demand a new one.

 

[JR2]

Don't wait or you will be sorry. Go to a different dealer and get it checked or get a new pump yourself and install it. It you wait you may kill your VP44 and then you will be very unhappy.

 

[zimman20]

Gotta fight harder

Same situation you had, I just fought the dealer on their findings. How do they check it 'a different way'? If you're seeing 5 PSI at WOT then they are supposed to change it, their own spec calls for a change at anything below 7 or 8 PSI (there's some difference of opinion on what the dealer is supposed to support) but they should be getting their info from the STAR line as to what they should be seeing and where and under what conditions, testing from the same Schrader valve you're testing from. I would have and did insist on talking to the mechanic and/or the service manager and asking them to tell me what they were seeing and where, and how they were testing it. You need to be like a bulldog with these idiots or they'll blow you off. Yours is right on the borderline, give or take with the possibility of your gauge being off 1-2 psi either way, but you need to fight them if you want to get your way. :-{}



zman

 

[Bob Cochran]

What happens if you exchange the schrader valve and banjo so schrader is now on outlet side of fuel filter. I have my quage connected there. I did this as the VP was hammering the guage and did not want to add a snubber. Beside confuse the heck out of the stealer. Is that going to cause a problem? Maybe I should go buy another scrader valve for the VP so as not to confuse them!!!:--)

 

[cwarner]

I called a friend that works at the local Cummins dealer and he hooked me up with someone he knows at a different dealer.

Hopefully they will take care of me.

 

[zimman20]

Let us know how you make out... ...

 

[zimman20]

cwarner- Check out this link for my story... ...



https://www.turbodieselregister.com/forums/showthread.php?s=&threadid=50090





zman

 

[cwarner]

Well got back from another dealer.



They also said the pump was okay although this time I talked with the mechanic and he showed me were he took his readings and they were 13. 5 @idle , and 11 @WOT.

Maybe I screwed up when I tested it



Well the AC had to be repaired anyways , I guess and O-ring broke and all the refrigerant leaked out.



I had the transmission and the fuel filter replaced while it was there, does $160 sound like an ok price ?



The worst part about this is I had to borrow my friends 01 Cummins for the day ... this one has a Western Diesel chip (I think its the same as an Edge EZ), race muffler , and WD airfilter.



I've got to do some BOMBING now ... that truck ROCKS compared to mine !

 

[DonS]

Excellent price!

Originally posted by cwarner

I had the transmission and the fuel filter replaced while it was there, does $160 sound like an ok price ?

$160 for a fuel filter and a transmission sounds pretty good. Was the transmission new or a rebuild?



-Don

 

[WadePatton]

I went to the dealer too.

With my Briar Hopper readings and got the same run around. So I came home and called another dealer that sees more Cummins vehicles. He said that they'd try but DC makes it a heifer. And then I said screw this and went to the Cummins store, gots me an LP for 145-odd bucks and put it on tonight. Pressure is better, but I can still pull it below 8. But I'm not still diddlin' around with DC.



I may changing fittings next.



Raced a chevy gas with the pressure guage taped to the windshield! He couldn't get by.

 

[1tuffram]

Originally posted by cwarner

Well got back from another dealer.



They also said the pump was okay although this time I talked with the mechanic and he showed me were he took his readings and they were 13. 5 @idle , and 11 @WOT.

Maybe I screwed up when I tested it

Well where did the dealer take the test readings from?? Was it the same place you did? How does the stealer do WOT testing? Do they take it out on the road so they can see the pressures at WOT with a load on the motor, or do they test WOT in the service bay with the truck in neutral and no load on the engine? When I used my Brair Hopper guage I took readings at idle, 1000, 1500, 2000, 2500 RPM in the driveway (I couldn't bring myself to do a no load WOT test on an engine with only 1288 miles on it. Seems a little hard and unwise thing to do on a new engine IMO). I then checked pressures at the same RPM's and WOT while driving and I can tell you they where not the same.

 

[cwarner]

Don,

For that price for a trans I should have picked up two !





the Mechanic showed me where he took his readings and they were from the same spot and yes they took the truck for a ride.

 

[MJawsman]

If the pressure readings were taken from the same spot, then somebody has a gauge that is reading in error. Or am I missing something? How can you test a gauge for accuracy? Would the mechanic have let you watch his gauge during this test? How about subbing Briar's gauge during the test and showing him your readings?



I've got it! Maybe the dealer reflashed the gauges' ECM with the oil pressure sending unit TSB so it never registers below 11 psi!:-laf

 

[zimman20]

cwarner- They are not supposed to be checking WOT in Neutral or Park, they need to check it under power, i. e. while they're driving it, like we are!



You say they took the truck for a ride, so did my guy. However, they will find that the truck will 'drive fine' with a failed LP, they, just like we, cannot tell that the LP is failed by driving it. Unlesss they DROVE THE TRUCK WHILE SIMULTANEOUSLY CHECKING THE FP, they will not get an accurate number! Driving it by itself or checking it in the bay by themselves does not indicate the LP's failure to perform. I assume you taped up the gauge and drove it? What did you see while in operation?



Maybe your LP is fine, maybe not. The gauge doesn't lie. Also, get a permanent set up in the cab and then you WILL be able to see performance while you're driving it (read: so can they when they test-drive it) and then Briar's gauge becomes a back-up//confirmation of what your permanent gauge in the cab is telling you. I just hate to see you get jerked around if in fact your LP is bad. Just my . 02 worth.





zman

 

[cwarner]

I'm going to retest with Briar's gauge and if the LP still reads bad I'm going to head right back to the dealer with the gauge still hooked up and take the mechanic for a ride so he can see for himself.

 

[zimman20]

There ya go...



Stick to your guns. Them service providers, you customer. Remember that when they're jerking you around. Seems they forget it sometimes.



Good luck... ... .

 

[cwarner]

Thanks,

I will let you know how it turns out.