Recent content by john11139

Why don't they put a drain valve at the bottom of the air tank filter?. Like I said, I just got this truck and know nothing about it's history or maintaince. Was just going over everything, changing oil, oil, filter fuel filters. I have had very little experience in taking care of airbrakes...

How can you tell when a air dryer needs changing? I took mine off and looked at it, couldn't see much. I think a new one costs over $200. It is just a large metal canister. Don't know history of truck.

On primary and secondary tanks there is a valve on each one to just twist it and the tanks drain but on the secondary tank there is another valve at the bottom that has a cable attached to it and when I pulled the cable about a half spoon of black oil came out of it, no air come out of this...

Any particular things that should be done to maintain air brakes?

If you was buying a truck under 26K gvw. Both trucks bring equal, but one had air brakes, air bags and air seat, and one did not, how much more should one with those options be worth? Also should the air valve be dumped when sitting over night?.

Problem solved. Thanks for suggestions. Took vent valve out, it was stuck and I think vent tub may have been partially plugged.

No tank was not warm. Cold outside (32%) I did notice when I screwed the cap off fuel tank it sounded like it had air pressure built up in it. (should it have pressure) Do you think that junction block could have crud in it? If disconnect the lines and blow them out how do I prevent a air...

I just bought a 2002 Fl 70 Freightliner with a Cat 3126. Went to pick it up and noticed the fuel gauge read just a little above 1/4. (it has dual tanks) I pulled into a gas station and the only pump I could get to was the one on drivers side. I put about 25 gal in it to get home. When I got...