Look and see if there are sensors on the front wheels.

 

HA! i think i need a signature that says "COMPLETE NOOB WITH AUTO MECHANICS"!

and what would said sensors look like

 

2 wheel (rear) ABS is standard on all of these trucks im pretty sure. Look at your rear drums, on the back, facing the differential, youll see one hose going in for the brake fluid, and youll see one other wire set going in for the ABS.

Now look at your front brakes, if you only see the hyraulic line, you have 2 wheel ABS, if you see the line + a wire connection, you have 4 wheel ABS.

 

he will only have one sensor in the rear. Right on top of the pumpkin......

 

Maybe you should just explain lol, my advice sucks, I was told thats how you tell if you have 2/4 wheel. (What I said in my post).

Whats the correct way to tell?

 

That's where you get into the difference between 'fake' 4wal, and "real" 4wal..... the "real" systems will have sensors at all four wheels, and the rear brakes will each have their own fluid circuit. (hard lines and such.) so the motor control can individually vary pressures at all four wheels. The system on ours, if the computer 'thinks' you have a wheel locked, it drops pressure on the rear circuit, and, since we have only one, BOTH rear brakes will see the pressure drop.

If you have front wheel speed sensor, (it's just be a wire going to the front wheel.... rwal won't have any wires at all up there...) then you have the dodge 4wal system. In which case, it gets a lot more complicated, as, instead of just a solenoid valve to dump pressure for the rears, there will be a motor controller, that the way they are priced, you would think were assembled by 50 virgins, hand carved out of solid gold, in a monastery in tibet somewhere......

 

well im at work and of course the 2 people on both sides are parked close so this is the best pic i could get. hope someone can tell. if not i'll grab a better one tonight.

again, thanks for all the help guys! if anyone ever has computer/electronics questions i'll return the favor since im well versed in that field

 

Turn the wheel to full right lock. Look at drivers side wheel well, and find the brake line. If there is a skinny line coupled to the thicker brake line running in parallel, you have 4 wheel ABS.

 

Take pic again from the other side of the wheel where the brake line is.

 

All I see is a brake line. So, RWAL for you.

So, check connections at the rear sensor, and if it looks clean and tight, replace the sensor. Common problem on these trucks.