Having problems with your Cars & Trucks ?

05 blazer. Having prob with what I think is the transfer case vacum switch. Take off, hubs seem between 4wheel,2wheel drive...hit 4x4switch then back to 2hi noise gos away..has an evap leak(p0449) is that connected to that vacum?

Posted / edited by AnonymousUser on : 16-04-2018

Answers :

If the evap system is leaking then the overall vacuum pressure will be low. Had this same problem on my Dodge Ram 1500 4x4.
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