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Is there a secondary air problem in my truck?

Is there a secondary air problem in my truck?

Also I hear pretty good and don’t hear any other leaks when truck is parked. When driving the truck Primary air stays right at 125 doesn’t move unless braking then builds right back up and stays right on money.

How to fill air tanks in a Freightliner?

Rudolph Diesel : With the tractor off Rudolph Diesel : after the tanks are drained fill the tanks with a air hose at the tanks you might have a brake chamber on the spring brake bleeding back threw the system you canhear it better if the truck is off and you fill the tanks with a air hose with the tractor running its hard to hear air leaks

Why is there no air in my secondary tank?

You can bypass the dryer and drain the tanks, that wouldn’t explain the secondary not building. Get it into a shop before your on the side of the road without any air. Big Don, Dave_in_AZ, Lepton1 and 1 other person Thank this.

Why is the air pressure in my truck not building?

Usually you follow the sound. It may be hard to find with the truck running. If it won’t build at ALL than I would suspect the air compressor itself. rabbiporkchop Thanks this.

Rudolph Diesel : With the tractor off Rudolph Diesel : after the tanks are drained fill the tanks with a air hose at the tanks you might have a brake chamber on the spring brake bleeding back threw the system you canhear it better if the truck is off and you fill the tanks with a air hose with the tractor running its hard to hear air leaks

Also I hear pretty good and don’t hear any other leaks when truck is parked. When driving the truck Primary air stays right at 125 doesn’t move unless braking then builds right back up and stays right on money.

You can bypass the dryer and drain the tanks, that wouldn’t explain the secondary not building. Get it into a shop before your on the side of the road without any air. Big Don, Dave_in_AZ, Lepton1 and 1 other person Thank this.

What to do if your truck has no air pressure?

There should be a double valve between your dry tank and your wet tank. There are two tanks for air on your truck. Get a hammer and tap that #### thing. Drain ALL tanks. Crank and build air to pressure governor again. If your sec fails to build.

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Ruth Doyle