2004 dodge ram 5.7 liter hemi... speedometer bounces sometimes does not work at all ..abs light and brake lights are on..check engine sometimes comes on.. i changed te rear speed sensor its still not working...any solutions.. cuz now my truck doesn't want to shift right either

ABS and Brake warning lights intermittent may be caused by a failing wheel speed sensor(ABS Sensor) and /or its connector. You may have one on each wheel hub(4WD) or if 2WD, a sensor may be on the rear axle differential center.

check speed sencor on transmission

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

i just had the same problem w/ my 04 ram.......after replacing the sensors that the abs computer codes gave me it still had the same problem....then i unplugged the abs module only to find water in it.....apparently its a problem w/ dodge.....i dried it out with an air hose and it works fine now... hope this helps.......Chip

Problem: I have a 2004 Dodge Ram 1500 5.7 L HEMI. My ABS and Parking Brake lights were illuminated, and my speedometer needle would "bounce". Also when sitting at a stop sign or just sitting idle, the engine would stall, and often times stop running.

Solution: After long research on this problem, I decided to dig in and try to find the problem myself. I replaced the Rear ABS Sensor
($35) that's located on top of the rear differential. Still no fix. I then unplugged the ABS Controller (or Module) that's located directly behind the battery (You should see the metal brake lines running into the top of it.) When I unplugged it, I noticed LOTS of moisture in the plug. Using an air hose, I blew out the water and let it dry good. When I plugged it back in, and hooked the negative battery terminal back up THE PROBLEM WAS SOLVED!! Simple fix. Hope this helps.

P0573 is for your brake switch stuck. It means you either have a bad brake switch, or a bad wire.

my 99 had a sensor go bad that had similar symptoms. sensor is in rear "pumpkin". mounted on top. $41 at autozone. look at dodge truck forum, do a search.

The first place I would do is check the battery cables, both ends, then check that the body to engine ground cable is intact. Back in the 70s and 80s, Volkswagen Rabbits, Audi Foxes, used a negative cable that ran from the battery to the left fender to the engine. Every once in a while, one came in on the hook or limped it with an intermittent body accessory problem, or frozen speedometer or throttle or clutch cable. In every case, somebody had replaced the negative battery cable with a conventional cable so there was no body ground connection except through the throttle, speedo or clutch cable. these could not carry the body current demand and eventually melted or welded into the cable casing.

No definately the speedo....