AutoLine Pro Universal Gas Cap Adapter For Easy EVAP Leak Testing - Includes Fuel Flap Bypass Opener Cylinder - For Automotive Smoke Machine Leak Detector

Awesome product helped me detect a fuel cap that was not sealling correctly. Really well made comes with 3m replacement stickys for re use. Not expensive at all with 1 diagnostics it paid for its self.

Worked great for finding an EVAP leak. I kept thinking it was the gas cap but it was vent canister. I was able to smoke the tank and find the leak. I timed it took me about 10 minutes to find the leak once I had the smoke machine connected. This includes jacking up the car, and putting a stand, after it was too high up to see. Worked great.

I was impressed with the gas cap adapter. I was chasing an evap leak in my 2014 Jeep Wrangler and located the leak coming from a fitting on the top of the fuel tank in just a few minutes. I don't think I would have found the issue without using the smoke machine and this adapter. Well worth the money and the extra adhesive pads included will keep me supplied for years to come.

Worked AWESOME hooked up smoke machine, placed universal cap over my filler and the cap held as if they were designed to be with each other. 100% worth it, I reused the same one sticky cap 3 times and seal still holds as if 1st time each time. Very satisfied with the item.

Very impressive and I got to use it in my class ASV 130 where I got the opportunity to smoke test my car in educational environments under masters technicians supervision this product really impressed him ... and we got a perfect seal for out test ... definitely 5 star. 10/10 . Will recommend it to my fellow technicians

Works well

It worked very well, helped me find an evap leak around my charcoal canister. Only thing I don’t like is that it comes with a limited amount of double sided tape to use to secure and seal it at the filler neck. So if you plan on using this more than 5-6 times you will need to keep buying double sided tape. Other than that it gets the job done. Only reason for 4 stars.

High quality , easy to use love this product 35 year in the industry and this is outstanding

The extension doesn’t work on a 2019 Jeep Grand Cherokee fuel fill port, conversed with Gavin in customer support, awesome person to deal with, very helpful and quick to respond. I also bought a smoke machine from these folks as well. I wouldn’t hesitate to purchase any of their products, knowing the support they provide! Strongly recommend them.