East coast to West coast trip - Free part taxi - standby assistance requested

[TechnoWeenie]

Bumper and aux LEDs installed for trip..

 

[TechnoWeenie]

Left WV this morning... Made it to PA... Both primary and secondary air systems are draining... Can hear escaping air around the air dryer in front of the rear axle...

Any way to bypass?

 

[Coffey1]

Not that I know of get some WD 40 spray up into release valve and work the valve should help

 

[porkysplace]

Not that I know of get some WD 40 spray up into release valve and work the valve should help

For a temporary fix , with 2000 miles ahead the air dryer needs to be serviced .

 

[TechnoWeenie]

Pressure relief valve... Is what it looks like... Constantly popping off... Every 3 seconds or so...

Got a ride from a friendly local... Trying to source a replacement.

 

[TechnoWeenie]

Pressure relief valve failed.... Replaced and back on the road.

 

[TechnoWeenie]

Just amazing how a $30, 2.5oz part can bring a 30klb truck to a halt.

I noticed the air loss before the light and Buzzer.

I'm glad I was paying attention to my panel... I when it got to 90 I immediately pushed the emergency brake override...

Glad I did...

Buzzer and light didn't come on until around 30psi...

If I wasn't paying attention... My brakes would've locked up on me... And I probably would've been going 50mph down the side of a mountain at the time...

Yeesh...

 

[Suprman]

Was it the small safety relief on the side of the air dryer? Had one of those go bad on me once. Good to have it there though. If your ppv were to fail and you didnt have that safety air pressure would just build until something burst.

 

[Another Ahab]

If I wasn't paying attention... My brakes would've locked up on me... And I probably would've been going 50mph down the side of a mountain at the time...

Yeesh...

 

[TechnoWeenie]

Was it the small safety relief on the side of the air dryer? Had one of those go bad on me once. Good to have it there though. If your ppv were to fail and you didnt have that safety air pressure would just build until something burst.

That's the one.

I understand factory was 150...it had a 175 in it... Only one available was a 250...and I'll be replacing it as soon as I can.

The compressor has a governor... On at 100 and off at 120 iirc. And my air has been rock solid at a hair above 120.

Made it just outside Cleveland.... **** of a day so far.

 

[Suprman]

I just swapped out a bad air dryer the valve is good though. If I can get it off in one piece you can have it.

 

[TechnoWeenie]

Second blowout valve just failed.... I'm beyond pissed. What the **** is going on? Stuck open..

 

[Suprman]

Are you sure its not the expello valve on the bottom center of the air dryer getting stuck? You can stick your finger in there and push it back up.

 

[TechnoWeenie]

I'm thinking air dryer is shot... Because I just pulled a tiny speck of something out of the blowout valve that was preventing it from closing... Almost looked like fiber.. But rust colored...

 

[Suprman]

I would just replace it. Where are you? Maybe someone close by with a new one.

 

[TechnoWeenie]

Are you sure its not the expello valve on the bottom center of the air dryer getting stuck? You can stick your finger in there and push it back up.

Yes.

It's blowout valve.

I'm thinking there's an obstruction in the dryer system. On Ohio turnpike. Gotta wait til I get to toledo or something.

Popoff valve is venting every 5 Seconds again.. And no.. It's not the air dryer..

 

[Suprman]

Do you windshield wipers work?

 

[TechnoWeenie]

Do you windshield wipers work?

I have zero pressure. Primary or Secondary. Pump is working over pressure valve is popping every 3 seconds.

 

[Suprman]

I wonder if one of your check valves is stuck or the ppv is somehow stuck

 

[Suprman]

Take off the air dryer output air line see if you have good air flow. If good there follow the hose to the first tank there is a check valve there.