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low air sensor

Discussion in 'Peterbilt Forum' started by azbraindamage, Dec 6, 2012.

Dec 6, 2012 #1

azbraindamage Light Load Member

136

33

May 24, 2012

Kingman Az.

0

the pop out brake valve isn't popping out til 25 psi, is this a sensor or do I need to test something?

azbraindamage, Dec 6, 2012

azbraindamage, Dec 6, 2012

#1
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Dec 6, 2012 #2

BigSam Light Load Member

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241

Mar 23, 2008

Illinois

0

azbraindamage said: ↑

the pop out brake valve isn't popping out til 25 psi, is this a sensor or do I need to test something?
Click to expand...

Most likely a bad tractor protection valve

BigSam, Dec 6, 2012

BigSam, Dec 6, 2012

#2

azbraindamage Thanks this.
Dec 6, 2012 #3

azbraindamage Light Load Member

136

33

May 24, 2012

Kingman Az.

0

where is that? plz n thnx

azbraindamage, Dec 6, 2012

azbraindamage, Dec 6, 2012

#3
Dec 7, 2012 #4

bubbanbrenda Road Train Member

1,388

650

Feb 27, 2011

Middletown,Oh.

0

Thats the valve thats not popping out until 25psi,thats the way mine is light and buzzer @ 60psi pops @ about 28psi.

azbraindamage said: ↑

where is that? plz n thnx
Click to expand...

bubbanbrenda, Dec 7, 2012

bubbanbrenda, Dec 7, 2012

#4

azbraindamage Thanks this.