trying to find out why my coach sags on the drivers side - Printable Version

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+--- Thread: trying to find out why my coach sags on the drivers side (/showthread.php?tid=621)

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trying to find out why my coach sags on the drivers side - encantotom - 03-21-2013

hi all,

my coach drops on the drivers side overnight. i have played with different things and today i used my ultrasonic leak detector but didnt hear anything anywhere.

richard gave me the idea to create a test/isolation setup. it has a pressure gauge and a ball valve. i took off the line on the back of the rear 6 pack manifold and put this setup in between the six pack and the line going to the rear drivers side ping tank for the airbags when.

i measured all 4 corners and noted the air pressure and will check in the morning. last nite it dropped 2 inches on the drivers side overnite.

i have already changed all the rear airbags and checked everything over and over.

here are the pictures of the setup

tom

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RE: trying to find out why my coach sags on the drivers side - folivier - 03-21-2013

Is it dropping with the leveling on auto?

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RE: trying to find out why my coach sags on the drivers side - Gordon - 03-21-2013

Were you able to check the 4 valves for the tag that are mounted to the inside of the frame.

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can you determine if it is the drive, tag or both?

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RE: trying to find out why my coach sags on the drivers side - encantotom - 03-21-2013

dont know.

i have been keeping track of each corner and both front and back drop on the drivers side. rear passenger side stays steady as a rock.

what i dont know is if the rear is so heavy it takes the front down too

when it was up on a lift we checked for leaks and didnt see any. i have replaced all 6 rear bags.

i am trying to eliminate one thing at a time.

tom

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RE: trying to find out why my coach sags on the drivers side - folivier - 03-21-2013

Could it be the o-rings on the solenoids leaking?

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RE: trying to find out why my coach sags on the drivers side - encantotom - 03-21-2013

i replaced them all

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RE: trying to find out why my coach sags on the drivers side - Gordon - 03-21-2013

I just don't see a leaking rear will drag down the front, unless on a severe angle down toward the front. If level, or close, weight transfers diagonally.
Think we need to wait till AM to read the gauge.

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RE: trying to find out why my coach sags on the drivers side - encantotom - 03-21-2013

yea. it is puzzling.

tom

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RE: trying to find out why my coach sags on the drivers side - encantotom - 03-21-2013

yea slides seem to make it worse

tom

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RE: trying to find out why my coach sags on the drivers side - tuga - 03-22-2013

Tom,

What kind of Height Control Valves do you have on your coach?

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