Header banner
Revain logoHome Page
Keith Aluguvelli photo
1 Level
1347 Review
56 Karma

Review on 🌑️ Dorman 47170 HVAC Control Vacuum Check Valve: Reliable and Versatile Solution for Efficient Climate Control by Keith Aluguvelli

Revainrating 1 out of 5

Complete Waste - PCV Valve and Bleed Bushings

These vacuum check valves are junk. I ordered two and tested them with a manual vacuum pump before installing them in my car. One of them holds no vacuum at all, and the other drops the pressure from 20 inches of mercury to zero in about ten seconds. Absolutely useless.

Pros
  • Functionality Restoration - This valve is designed to install and fully restore the functionality of a part following failure of the original valve.
Cons
  • Reliability