[rooster]

I have stopped all the air leaks but, my air pressure stays around 82 pounds. This seems low to me. Do I need a new engine air compressor or is this normal for this model. I am used to 110 to 120 psi. Thanks Pete

[Fulltiming]

Either your gauge is wrong or you have a problem, you should be seeing 110-125 psi when the blow off activates. Do you ever hear the pressure relief valve on the air dryer open?

[Chester Stone]

Do you have dual tanks or just one? If dual, do both show only 82?

[Fulltiming]

You should have 2 gauges on the dash, one brake gauge with 2 needles and one aux air with 1 needle. Are all three needles only going up to 82 psi?

[encantotom]

you might have an air gauge back by the 6 pack in the engine compartment. if you do, check and see what it says

tom

[rooster]

Thanks Guys. I will check tomorrow. It seems all three gauges on the dash show around 82 psi. There are two tanks behind the rear axle. I have not heard the relief valve release.

[Fulltiming]

I would listen for leaks around the air dryer.

[rooster]

Went over this morning and located the guage at the rear compartment. Ran tho old girl for a while and the pressure came up to about 116 and the it popped off. It must have been having a bad day. I'm Happy Camper again. Thanks for your suggestions. I located a very slight leak in the left rear bag. Anyone have the part number for the suspensions air springs on the 1988 model year. Thanks Again. Pete

[Fulltiming]

Don't know about your 1988 but my 1992 with a tag axle uses Ridewell 1003589447C on the front and drive axle and Firestone 1003588992C on the tag.