Hey guys need some help,

Just swapped out my passenger side rotor\bearing on a 2007 4x2, cause I was getting some grinding noise. Took my time,everything went great and fixed the grinding. Took it for a slow ride and right away at low speeds I am getting a brake pedal pulse thump, it seems like every tire rotation. Took it apart, checked everything and put it back together. Went for short ride and noticed pulsing SEEMS to be gone , but not I have a ABS light. Tried to clear with my SCT tuner and it came right back. Thanks

 

Went to autozone and code came up C1297 ABS speed sensor. Whats funny when the light is on it runs and brakes great,but when its off thump city. Is there a test to make sure its that? Whatcha guys think?

 

Come on , no one has any help....

 

Your speed sensor is telling the abs brain that the shell is locking up.that's what the pulsing is.Take the sensor off and make sure its clean and you didn't nic it in the process

 

Update- took th number 14 fuse out and that kills abs etc.,right from the go ran awesome, no pedal thump. So went back to napa and got a abs speed senor, swapped ot out and still the sam problem. WTF

 

Ok here's a thought.

About 3 years ago I did the brakes for my truck with a friend. New Raybestos one piece rotors and Wagner TQ pads. Had to replace a caliper and finished the job. Took the truck out for a test drive and the brakes pulsed then light would go out and the truck would brake fine. We didn't have a code reader so I don't know the code. Ended up having Ford look at it. Patman on here called it.

The hub ring had a different/damaged amount of teeth. That's how the ABS senses the wheel turning IIRC. If it stops, then the ABS kicks in a pulses it. I'd count the teeth. I almost posted the other day but I was thrown off by your post at first. Reading again, it looks like you have the same issue I did. Light off, pulses, shortly after it turn on and brakes are fine. Each time the truck was shut off and restarted, it would happen until the rotor was replaced.

After yet another bad caliper, I ended up going to the Centric 2 piece conversion and haven't had issues.

 

I've gotten rotors for this truck from Napa before and never an issue. Do I need to go there and grab another or from another company. This blows

 

I'd tell them and see if they'll issue a new one then swap it.

 

Guys here at Napa are pretty cool. I told them I cant swap it out til next friday and they said no problem. They'd give me another one. Also, i can bring the ABS sensor back since its not the problem.
2 questions I have. Should get another Napa Rotor? Also, should return the ABS? Thanks guys

 

If you have your original rotors, count the teeth and compare to the new one. If you hadn't done the brakes I would say get the centric kit. Its well priced and allows 4x4 rotors. But since you've already done it, I'd get another. If that fixed it, I'd bring the sensor back.

 

Thanks Truckguy. Will post back with results.

 

Well after swapping the abs sensor and it still did it, I grabbed another rotor. Sure enough that was the problem. Thanks for your help

 

Very glad to hear bud, awesome