My Lonestar’s suspension won’t inflate

Discussion in 'Ask An Owner Operator' started by 2016Lonestar, Aug 12, 2023.

  1. 2016Lonestar

    2016Lonestar Bobtail Member

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    BTW: I ended up with multiple posts by trying to edit some typos in the first as well as two of the pics showing multiple times. I didn’t see an edit option so I paged back, saw I could make changes, made them then posted again. From my end I couldn’t see any but one post. Was there an edit button somewhere I missed? Maybe I should have tried more options?
     
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  3. Ridgeline

    Ridgeline Road Train Member

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    See here is the thing, you needed to go to the dealer, and have them read what's going on with the controls of the air suspension system and where the problem is, it takes maybe 10 minutes to find the problem.

    Going to a shop that has no clue what they are doing or replacing switches seems to be a waste of time.
     
  4. 88 Alpha

    88 Alpha Trucker Forum STAFF Staff Member

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    Correct. There is an edit button. When on your phone, you may have to turn your phone sideways to see all of the options. You can also go to the MORE OPTIONS button, then PREVIEW button and see what your changes look like before pressing the REPLY TO THREAD button.

    Either way, it wasn't a big deal for me to clean-up for you.
     
    2016Lonestar and REO6205 Thank this.
  5. 2016Lonestar

    2016Lonestar Bobtail Member

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    In the months this has been flashing and unable to dump I’ve had my trucks codes read at least 5 times but nothing shows up that’s obviously the problem. Trucking rates suck, dealers are costly and backed up. They’re where I go when I’m left with no choice and they won’t get to it in ten minutes. I’ll never think twice about trying to fix things myself when I can. It’s paid off plenty in the past and saving money is never a waste of time. I posted my problem on this forum to see if someone else had a duplicate problem before I did and then maybe I’d hear what it was. Obviously you’re not one who could, you take your truck to a dealer every time. Opening your reply was a waste of time but I know you meant well so thanks
     
  6. Heavyd

    Heavyd Road Train Member

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    The switch is blinking due to a circuit fault with the dump solenoids. There are two electric over air solenoid that control the dump operation. Usually what happens is the board they plug into becomes corroded. Chances are you need a new mounting board and new dump solenoids. What ever program was used to read the codes is insufficient. The body controller will certainly be logging codes. Check out this thread for some more info;
    2010 International Prostar Dump Valve Blinking
     
  7. Long FLD

    Long FLD Road Train Member

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    Chances are if you do track down the problem on your own and replace the solenoid(s) if that’s what the problem is you’ll probably still have to go to a dealer to have your cab computer calibrated again with the new parts.

    I had a pressure switch on my firewall that would go wonky if it rained while I parked. The suspension gauge would read way light, like set off the traction control alarm when bobtail because it would read under 5psi. I ordered the switch, swapped it out, then had to take it to Peterbilt so they could make the cab module play nice with the new part I plugged in.
     
    2016Lonestar Thanks this.
  8. 2016Lonestar

    2016Lonestar Bobtail Member

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    Very useful advice. Thanks again
     
  9. 2016Lonestar

    2016Lonestar Bobtail Member

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    Update:
    I’ve not done anything else except put the dash back to normal. Yesterday (Sunday) I pressure washed the underside of the truck to clean the differentials, tranny etc.
    Now I’m not suggestion that had anything to do with changes of status I have seen since. After a few hrs from when I finished washing I noticed the dump switch went back to flashing as it had for months before I installed the new switch panel. I thought “maybe the bags inflated like they would be all those months too” I checked…Nope
    Then I went to work for 11 hrs today. My truck stayed parked the whole time. I started it up to move it just now and the bags are inflated ‍♂️. The other change is the yellow warning triangle and the check engine icon are lit in the dash. It’s evening so I’m not interested in checking what codes are active yet but asked a mechanic that has the laptop and program to check and clear codes to see what he can see when he gets around to it. No rush. My guess is I’ll see something making mention of the BCM but just the guess of a novice. To be continued
     
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