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About the ABN Cylinder Leak Detector Engine Compression Tester
Find worn piston rings, valves, cylinder head cracks, and blow gaskets with the ABN Cylinder Leak Detector & Engine Compression Tester Kit.
A Closer Look
FITS YOUR VEHICLE
It is compatible with gasoline 4-stroke engines and 12mm or 14mm spark. As long your vehicle has a standard spark plug socket, this set will work for you.
COMPARE CYLINDERS
It best tests cylinder leak down and compression when comparing a suspect cylinder to a known good cylinder on the same engine.
EASY TO USE
Remove the Schrader valve and turn the regulator off before applying shop air. Install the hose to the cylinder, the unit to an air supply, calibrate the leak gauge, and connect the unit to the cylinder hose. Diagnosis is made by observing the amount of leakage indicated on the cylinder leakage gauge and listening for leakage at various points of the car system.
Who We Are
Auto Body Now is a family owned company based out of South Dakota. We have an exceptionally strong Internet presence, sending out over 50,000 products each month. In fact, if you have purchased any of your auto body supplies or car care supplies online, there is a good chance we have had the opportunity to serve you.
Shane
Reviewed in the United States on June 3, 2025
Grand Total:$20.35How much will it cost to have a dealership do this check?More than Grand Total:$20.35 . Guessing.
Seth2281
Reviewed in the United States on February 4, 2024
It works just fine I didn’t see anything wrong with the one I got at all it did the same as more expensive models
leota
Reviewed in the United States on August 28, 2021
I've had this thing for almost 2 years now and used it 3 times.First time (Almost 2 years ago) it gave me some readings, just enough to understand whats wrongSecond time (Juts over a year ago) I had so many problems getting a accurate reading that I thought it was meThird time (Just hours ago) I couldn't get any real reading on it at all. The gauges move but the reading is so sporadic that it tells me the engine has no cylinder leak but when I repeat the test in the same cylinder just seconds apart it tells me it has major problems in the cylinder. When I tried another cylinder it repeatedly told me it has less than 10% leak but you can hear lots of air coming out of the throttle body and exhaust, way more than 10%. More like 50% if not higher
jesse james
Reviewed in Canada on August 20, 2021
doesnt even go past 150psi
eplante
Reviewed in Canada on March 21, 2021
A la première utilisation, il y a un cadran défectueux:/// piètre qualité
René Cyrenne
Reviewed in Canada on April 16, 2021
Le connecteur mâle sur l'appareil n'était pas du b on diamètre
Timothy Zelenka
Reviewed in the United States on November 5, 2020
Why pay more for a Cylinder Leak Detector elsewhere? This was a quality product which I used to test for compression leakage on my 2003 BMW Z4 3.0i... (minimal with over 160,000 miles) ;-) Now I have peace of mind that I can spend more $$$ on maintaining the car without worry of having to junk it because it would cost more than the car is worth to rebuild the engine. This ABN Cylinder Leak Detector & Engine Compression Tester Kit was well worth the investment!
Aaron
Reviewed in Canada on May 5, 2019
Gauges need to be upgraded
David Amescua
Reviewed in the United States on March 3, 2019
Works just as good as a very expensive tester. It’s not a tool I use constantly but for the times I do need it, this gets the job done. Easy to use and fits almost every motor I work on. I do wish they included different air coupler fittings but it’s a minor complaint.
Trav
Reviewed in the United States on March 19, 2019
I don't recommend trying to remove the air chuck fitting from this gauge if you need to adapt to the other style like I had to do. I tried to at first by using a bench vice and a rag against the plastic regulator body with no more than firm pressure from the vice. I used a 9/16 deep socket and a 3/8 wrench attempting to loosen the air chuck to the point where if I pushed any further I felt the regulator body would be compromised by the force. Use a quick connect and the air chuck needed for your compressor to adapt, problem solved. It even fits nicely in the supplied cheaply made plastic case. I hope this helps!You get what you pay for so honestly I'm not surprised and this is to be expected for a light duty tool for home owner use. I grew up around SnapOn and Mac tools all my life but in some instances cheap for the desired use makes the most sense.Who knows, maybe this Chineseium product will surprise me in the coming years while I walk my neighborhood leak down testing all my neighbors cars! Joking........
Carl A. Zayatz
Reviewed in the United States on March 12, 2019
As an ex-automobile mechanic, I have great confidence that this tool will help me diagnose (& ultimately repair) engines that exhibit cylinder leakage & loss of power. The ABN cylinder leak detector kit arrived undamaged and ready to use. I am pleased with the kit and the excellent price I paid for it.
Jeff
Reviewed in Canada on October 26, 2019
leak down compression test on a lawn tractor. it did a good job
Florida Man
Reviewed in the United States on April 15, 2019
*Requires 45-100 PSI to use - others have incorrectly stated you cannot exceed 20psi.*Cons: For whatever reason, the coupler did not fit in my air compressor hose. I clamped down (trying not to damage) and was able to remove the original coupler and replace with a standard one (already switched in photo). Calibration was a little confusing but very simple once you understand.Usage: The device easily screwed into my motorcycle's spark plug spot. Once I had my bike top dead center on the compression stroke I calibrated the gauge (use the psi control knob and adjust to 0 [takes about 15-20PSI]) and it worked perfectly. My top end showed no leakage. I did it a few times and when I was not top dead center the gauge showed 80-100% leakage and you could hear the air passing through the valves and into my air intake.Pros: Box is very secure. Easy to use. This is well worth the money, as I have already saved myself from having a mechanic do this and I know what's not wrong with my bike.
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