Hello and Help - B4000

[carpentr]

The rear axle has a one way vacuum valve that fell off the other day I have tried three auto parts stores and no one could help me. My check engine computer says I have a mass vacuum leak.

 

[Tbars4]

..If you had your location under your name, others in your area could possibly better assist you...

..What exactly was the code and are you referring to your canister under the bed and above the rear axle?

..If so that would not result in..

My check engine computer says I have a mass vacuum leak.