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Does exactly what it says on the tin. Needed to remove a fair bit of header tank coolant to get a clear reading as first attempts contaminated from misting / spray and read inconclusive. After taking about 1/2 litre of coolant out I got a clear head gasket failure indication, later confirmed by a compression test showing zero on 2 adjacent cylinders. Sniff test was much quicker and easier and less messy than the compression test. Loads left for future use. Does the job you need it for, quickly and simply. Arrived very quickly and well packaged.
Verified purchase: Yes | Condition: New
I bought this product as my car was loosing coolant and the garage wasn’t available to find a leak. after trying this it worked perfectly and gave me an answer. Does as it says easy to use.
Verified purchase: Yes | Condition: New
I was very pleased that this product could confirm that i had a blown head gasket. I decided to strip the car down and replace the old gasket with a new one-this was due to my water pump in a 20 year old car failing. I had only changed the timing belt 3 years earlier and should have changed the pump as well....live and learn
Verified purchase: Yes | Condition: New
Simple to use and could save you a lot of money. Had a suspected failed head gasket. Turned out to be a faulty brand new water pump. Helped rule out head gasket failure on 10 minutes and saved lots of time and money.
Verified purchase: Yes | Condition: New
Tested 10 minutes on my car as I had a boiled coolant previously. It stayed blue, so I was in doubt, then countertested with a pet bottle kept over the gas stow for a few seconds. When plugged in the tester and pushed the bottle, it took only 5 seconds and turned into yellow straight. See photos. It works. Bargain for the relief you get at the end. Highly recommended!
Verified purchase: Yes | Condition: New
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