Willit Stop Well-known member Apr 4, 2025 #1 I found this on youtube. Clever. https://www.youtube.com/watch?v=PI5bBV0ZFek
Mart Well-known member Apr 4, 2025 #3 The comments seem to be saying it can happen even with good valves.
JayChicago Well-known member Apr 4, 2025 #4 Mart Thanks for alerting us to that. The video was quite convincing. Then reading the comments I find out it's bogus, doesn't prove a thing. One of the comments said he did the test on a new car and got the same "bad valves" indication.
Mart Thanks for alerting us to that. The video was quite convincing. Then reading the comments I find out it's bogus, doesn't prove a thing. One of the comments said he did the test on a new car and got the same "bad valves" indication.