Review on 🧪 Dorman 47149 Vacuum Check Valve: Ensuring Optimal Functionality and Performance by Andre Bennett

Name: 🧪 Dorman 47149 Vacuum Check Valve: Ensuring Optimal Functionality and Performance
Item: 🧪 Dorman 47149 Vacuum Check Valve: Ensuring Optimal Functionality and Performance
Rating: 1

September 01, 2022

one of three for exhaust and emissions

I added one to replace the factory valve. It started leaking after a few months so I bought two more. One was ok, the other I could suck in both directions. I took it apart and there was a waxy stuff inside, probably to lubricate the caulking rubber patch, but it dried up and turned into little rocks. Let's hope the "good" lasts longer. Every third entry and (possibly) very old stock leads to a bad rating.

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