Just bought my 2004 Dodge Ram 1500 Quadcab 4x4

2004 Dodge Ram 1500 Problems - RepairPal

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loose connection on the grip behind the display.

scan for codes first. sounds like a shorting wire. has vehicle been lifted?

Yes, it does.

I have noticed that a lot of similarities between the 98-02 Dodge Ram line so this may or may not help. I have a 1999 Dodge Ram 1500 Quadcab and have taken pictures of the diagrams, you can check them out and see if they are the same...please post back and let me know so I can put that on the site anyways here is the link www.afreeland.com/index.php?page=DodgeRam

check engine light

They make a machine to do this, but it is too expensive to buy for just one use. The best thing to do it to take off the power steering lines where the connect to the steering rack. Then start the truck and it will pump out the fluid in the reservoir. Feel free to keep adding fresh fluid to it while its running just to ensure all is out. Then, to get the fluid out of the steering box, connect the lines back up, fill the reservoir, and with the vehicle running, crank the steering wheel back and forth from lock to lock. This will take the fluid from the rack and eventually bring it back to the reservoir. You must then again disconnect the lines and flush it out of the reservoir. You may want to repeat this several times, it may take a long time, but will be cheaper than replacing the steering rack, box, pump, and lines. Good luck, and have fun. :-P

Should have to remove a couple of screws, unbolt the door handle, then lift upward. It is held in by slots.

usually sits on passenger side on the inside of frame follow fuel lines from motor to tank ,its usually at the half way point between motor and tank inside frame rail

take it to autozone they will check why the light is on for free