so the other day it did this once, and now its a consitnat problem

the speedo jumps aorund, it does not move any higher than my current speed, but the needel will drop then spike back up to my speed. does it at all different speeds. truck seems to respond to the diffferent speeds and if it holds the needel below were it should be for more than a second, it will up shift.

at the same time i have a wired wiper problem that has symptoms that keep changing. at the moment it will go on twice, all on its own, then it stops. I started the wiper manually and went to stop it...it did not stop it kept going...then it did stop and it stopped in the middle. Then the sypotoms changed again, and i could get it to stop properly.

not sure if these are related issues, or not. just weird on the same day. this is my first time trouble shooting a 3rd gen. i could use help and tips. lots of experiance on the 2nd gen

any recommended books, or downloads for repair manuels?

04 dodge ram 2500 4x4 auto trans, hemi, 130 k on it

 

faulty grounds or possible shorts is one place to start

 

Whenever I see someone add "and YES I tried to search" I always think it's directed at AF for some reason...

 

I think they are unrelated as I have heard of the wiper issue and had it myself on my reg cab truck, you can try replacing the relays to see if that helps, if not it could be the multiswitch.

As for the speedo it could be something inside starting to give way, or maybe the speed sensor could have something to do with it, not sure.

 

Doesn't the TIPM (Total integrated power module) control the wipers? I am not sure if it also has control over any gauges, but you might have that checked at a reputable shop or local dealer. It seems that I have seen a thread or two about the TIPM failing here in the last month or two.

nateroach

 

Yeah, the speed sensor could be at fault for the speedo problem. I'd look at that and the wiring for the wipers. You may also be able to unbolt the fuse block and check under there for corrosion. I've heard of that before too.

 

rofl. quite possibly. i dont mean to come off like a ***** when i say that, and i've tried to start giving an answer along with my helpful suggestion to use the search. man it gets annoying though... haha

 

thats a good tip on the fuse block , i had a gen 2 do that. Ill have to check mine, and give it some grease, could fix the wiper problem. I belive that there is some type of switch the is activated when the wiper is at its lowest point. My thinking is that switch is not wroking correctly, or at least some point in the process the signal is getting lost.

As for the speedo. is the gauge controlled by the speed sensor on the rear end? or on the trans? is there one? i ask this becasue the truck will shift according to what the gauge reads. thus my thinking becomes that its just not the gauage thats bad, I think the trucks trans is getting fed bad info... (from the computer i assume?) and computer gets bad info from the senor?

anybody have a wiring diagram that i could look at?

 

bump for help

 

http://www.dodge.com/bodybuilder/2006/dr/drmo.pdf

Work your way threw threre and i am sure you will be able to find the wiring diagram you need.


http://www.dodge.com/bodybuilder/year.pdf

I just relised i have the year already in the first link. This one will be a bit more helpful.