Skip to main content ↑ ↓
Topic: Lost Travel Mode - Front Axle, Air Bags Deflated (Read 1154 times) previous topic - next topic

Lost Travel Mode - Front Axle, Air Bags Deflated

2500 miles from home lost air pressure to all air bags on front axle underway at 60 mph on a two lane with no where to pull over. Suspension bottoming out, hit the hwh touch pad and manually raised the front until I was able to safely pull off the road. Pulled the 7.5 amp fuse in the HWH control box and manually raised front bags to 8.5 inches, turn off system and was back on the road. This morning started to trouble shoot the issue.  Replaced the fuse and went to travel mode found air exhausting from ride height control valve deflating all 4 front bags. Replaced ride height control valve with a spare thinking that was the problem.  New valve still exhausting air defalting bags...Any ideas?
Thinking if the computer is bad and energizing the dump solenoids in travel mode that air would be exhausting out the 6 pack manifold?  One good thing I am only 270 miles from Moscow,  Iowa!
Doug W.
96 36' U270 CSGI #4946
04 Toyota Tacoma 4x4
PNW

Re: Lost Travel Mode - Front Axle, Air Bags Deflated

Reply #1 –
Doug- head to Moscow.  They are the experts, they know the system, and they have parts available to repair/replace.  Get it done right and hit the road.  Hope to see you in AZ this winter.................. ^.^d
Ted & Karen
2001 U270 36' - sold after 12 years full timing

Re: Lost Travel Mode - Front Axle, Air Bags Deflated

Reply #2 –
Quote from: Doug W. –
1. Replaced ride height control valve with a spare thinking that was the problem.  New valve still exhausting air defalting bags...Any ideas?
2.Thinking if the computer is bad and energizing the dump solenoids in travel mode that air would be exhausting out the 6 pack manifold? 
Doug,
1. It is not unheard of to have a bad ride height valve out of the box. 
  1a.  Are you sure that you installed the new one with the match mark in the proper orientation?
    b.  Are you sure that the linkage is set proper and not bent?

2. This is correct. 

Mike
Pamela & Mike 97 U 320

"It's not what happens to you, but how you react to it that matters."

Re: Lost Travel Mode - Front Axle, Air Bags Deflated

Reply #3 –
Manually rotate linkage connector to see if you can find air fill, air dump, no air movement positions.

Re: Lost Travel Mode - Front Axle, Air Bags Deflated

Reply #4 –
Quote from: Barry & Cindy –
Manually rotate linkage connector to see if you can find air fill, air dump, no air movement positions.

Thanks Mike and Barry I'll try that today.  Hopefully that is the case, I was in a hurry yesterday to get to a  destination after installing valve. Internet is limited here, I'll let you know.
Doug W.
96 36' U270 CSGI #4946
04 Toyota Tacoma 4x4
PNW

Re: Lost Travel Mode - Front Axle, Air Bags Deflated

Reply #5 –
Be careful. I split my windshield from top to bottom driving while holding the HWH in raise. It was a bad travel solenoid. You might want to carry a spare.
Good luck
Chris
Chris and Tammy White  CDA Idaho
Previous owners 1997 U295 36' 3126 Cat 300 HP Build # 4998
Former Foretravel tech & RVIA certified tech
Former owner Custom Satellite home/RV satellites 
Former owner Vans LTD  van conversions
Unemployed, panhandler, drag racer NHRA #6348

Re: Lost Travel Mode - Front Axle, Air Bags Deflated

Reply #6 –
Quote from: gracerace –
Be careful. I split my windshield from top to bottom driving while holding the HWH in raise. It was a bad travel solenoid. You might want to carry a spare.
Good luck
Chris

Thanks, Yep carry 2 spares.
Doug W.
96 36' U270 CSGI #4946
04 Toyota Tacoma 4x4
PNW

Re: Lost Travel Mode - Front Axle, Air Bags Deflated

Reply #7 –
Quote from: Doug W. –
Thanks Mike and Barry I'll try that today.  Hopefully that is the case, I was in a hurry yesterday to get to a  destination after installing valve. Internet is limited here, I'll let you know.

Yes, problem fixed, back in business.  Rotated actuator 180 degrees, new ride height control valve operating like it should. 

This the second valve that I have replaced on the road along with 2 air solenoids, nice to have spares on hand. Granted they were original parts at 22 years to be expected.
Doug W.
96 36' U270 CSGI #4946
04 Toyota Tacoma 4x4
PNW

Re: Lost Travel Mode - Front Axle, Air Bags Deflated

Reply #8 –
Quote from: Doug W. –


This the second valve that I have replaced on the road along with 2 air solenoids, nice to have spares on hand. Granted they were original parts at 22 years to be expected.

Same internal ride height valve failure as my left rear a couple years ago that deflated air bags while underway. All three have been replaced with the following now but will be carrying spare.

90555105 by HALDEX - Height Control Valve - Replaces 90554241
Doug W.
96 36' U270 CSGI #4946
04 Toyota Tacoma 4x4
PNW

Re: Lost Travel Mode - Front Axle, Air Bags Deflated

Reply #9 –
Thanks for posting the fix and link.  ^.^d
Scott & Carol Seibert
2001 42' double slide U320 - Sold
Previous - 2002 36' U320

Re: Lost Travel Mode - Front Axle, Air Bags Deflated

Reply #10 –
Found an aftermarket valve on Ebay for $38,might be worth a try.
96 U270 BUILD 4810
85 380SL
Drummonds TN.
 

Re: Lost Travel Mode - Front Axle, Air Bags Deflated

Reply #11 –
Quote from: Doug W. –
Same internal ride height valve failure as my left rear a couple years ago that deflated air bags while underway. All three have been replaced with the following now but will be carrying spare.

90555105 by HALDEX - Height Control Valve - Replaces 90554241

Glad I had a spare along, my third failure while underway. Right rear this time same internal breakage.
Doug W.
96 36' U270 CSGI #4946
04 Toyota Tacoma 4x4
PNW