I replaced the frt brakes a few weeks ago, and replaced the frt tie rod and when I first turn the truck on no lights stay on, as soon as I pull away, botht he brake light and abs light come on and stay on.

Brakes works fine, fluid is good, nothing seems out of the norm.

What would cause them both to come on and stay on?

 

Does the speedometer act up, especially in the lower speeds, say 0-30 mph? If so, it will be the speed sensor on top of the rear differential.

 

not that I have noticed, i thought of that also, but everything seems to be ok just the lights stay on

 

You check fuses?

 

Yes checked the fuses, it is weird because I can sit there in the truck for ever and the lights wont come on but as soon as I start driving they come on.

Very weird

 

Did you check to see if the speed sensor is loose a bit?

 

Where is the speed sensor? and thank you for taking the time to help me figure this out.

Rich

 

The sensor is on the top of the rear diff. And the speedo does not always act up if it's bad. Also check the brake line running along side the fuel tank, it commonly gets pinholes that are hard to detect. You don't have 4 wheel antilock brakes do you?

 

did you reset the porpotioning valve assuming the line blew out on you just had that on my 98 2 weeks a go

 

You might want to add how to do that.