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supercub's avatar
supercub
Explorer
Dec 18, 2014

Front Airbags not filling at idle??

I start the motor home in the morning and let idle to let it warm up. The rear bags inflate to above 100PSI. The fronts only go to about 60psi. As soon as I go about 100 feet the fronts inflate to above 100PSI. Just started having this problem. I don't know if it's extra power or moving the motor home. Tomorrow, I'll try giving it a little power before moving to see what happens. Once the pressure comes up, it holds stable. Is there a sensor that might be sticking? or ?? Any help? Thanks
Brian
  • They have always filled the same amount, up to a couple of days ago. The still are the same after I drive for a 100 feet or so. I have two gauges, front and rear gauges, I assume there's two tanks.
  • Are the air gauges for the pressure in the front and rear air tanks or are they for the air suspension? I haven't seen gauges for telling you the pressure in the air bags - but then I certainly haven't seen every type of MH!

    And then do the rear air bags fill off of the rear air tank and the front air bags fill off of the front air tank? Do both sets of air bags fill off of one tank? Do the air bags even fill off of the brake air tanks or does their air come straight from the air compressor? I ask these questions because I don't know and maybe someone with more knowledge can give an answer.

    Never the less, I would expect that if the rear air tank is at 100PSI, the front should be a lot closer than 60 PSI. Every MH or truck that I've driven with air brakes always fill the tanks a lot more evenly than that. Usually the difference is only 5 - 10 PSI which just might be the gauges themselves.

    Bill