First off thanks for the add. Looking at buying a 2002 Dodge. Guy said everything is great but one problem. The owner now said you can cruise pulling a trailer at 70 all day but Rpms are to high at 80-90. I found the Guy who built the truck and said you could run 120 no problem before. Any guesses on what may be causing this? Truck is mildly built with a fully built trans. Below is exactly how the owner now worded it 

 

I it won't run 80-90 on the highway but I pull the camper 70 all day. It runs too high of rpms in the short.  U can hear it hit overdrive but only drops 250 rpms.   It doesn't burn fuel I get about 18- 19 pulling. 

 

Witn this being said any ideas? I've searched around and from what I've read it could be a bad solenoid? Would like to have an idea of what it could be before I purchase it. I've always had fords or duramax so want to give this truck a shot. Any help is appreciated, thanks again! 

My vote goes to getting a Quadzilla. Let's here what mods are already done to the truck. I'm sure once everyone sees what's already done to the truck different ideas will flow. Good looking truck 

15 hours ago, Milam_11 said:

Used to have an edge comp box on it now it doesn't have anything. Trying to decide between a comp box and a quadzilla. Any help would be great.

 

 

I also vote for Quadzilla. Way better fuel to boost management. Then the ability to adjust your timing curve and cruise timing is something no other tuner can do for the 24 valve Dodge Cummins.

Here is exactly what I was told is done. Only reason I want the edge over the quadzilla is simply for the cts2 monitor, i used to love mine. I just don't want to have to Bluetooth mine for the quadzilla every time. 

Any help? I've dropped it off at two shops and they have charged me enough. All they did was replace the solenoids, and after said oh yeah it's lowed geared. Is there any way to attach a longer video for y'all to see?

Well you should not run a tuner against a hotrod pump. Edge will over advance the pump being its already advanced timing in the pump. The Quadzilla you can work with the timing and set it where you like it to run.

No tuner on it at all right now, trying to figure out this transmission issue or whatever it is. 

How about figuring out what gearing it has........

Jack up rear end and turn driveshaft. Count how many turns for 1 complete revolution of tire. Instant gear ratio confirmation.

 

L8tr

D

1 minute ago, SilverMoose said:

Jack up rear end and turn driveshaft. Count how many turns for 1 complete revolution of tire. Instant gear ratio confirmation.

 

L8tr

D

 

 

Just remember to mark the tire with a tire crayon and the driveshaft so you can make a good count.

 yeah what he said.

 

L8tr

D

Change the fluid in the rear differential.  No one else did it, they were too busy poking exhausts in the hood and bed and such.     (being funny  truck looks good and looks fun!)

 

While you are letting the fluid drain, use a chalk marker and count the teeth on the pinion gear and on the ring gear.  Divide the teeth in the ring gear buy the number of teeth in the pinion.  There is your exact final drive ratio.   (I think that it should be 41 on ring gear and 10 on pinion  For the "4.10" on the dana 80.)  You can also see if there is a positive traction in the rear too and check the condition of everything. 

 

Good luck hope that helps.

 

Hag

If the cover is off there is no reason to count the teeth. The ratio will be on the ring gear lol

Are you getting 3 distinct upshifts, and then TC lockup on top of that?

 

If there was something wrong with the OD brake clutch, the PCM could be commanding a 3-4 upshift, but an actual upshift may not be occurring. You could be confusing the converter locking in 3rd gear (even though 4th had been commanded) for a 3-4 upshift.