Can K-Seal Really Fix An Engine Coolant Leak? Watch And Find Out. 

Aye!!! Hope this works for me

@@attuneofficial I think I have a head gasket leak and it definitely has worked for me. My vehicle is 20 years old. Like I said, if I get another 2 years out of it and it works, it definitely was worth it!

Do I make sure my radiator is empty before using k seal. Plus how long do I wait before adding coolant after using k seal

@@positivity374. No, put it in your radiator. If your radiator doesn't have a cap, put it in the overflow tank. Drive the vehicle for about 20 minutes. That's all there is to it. Never seen stuff work like this! I have a 2001 Pontiac Sunfire with over 200,00 miles. Sealed up my leak in one 20 minute drive!

Same here ..I had a bad water pump leak .. I mean pouring ...K seal worked for me for 1 year and a half .. just put a new bottle in

Thanks for sharing

@@MountainManMo NP I actually had to put two more lots into it because it still leaked a bit after the first, no leaks at all now. Just my oil leak lol

@@MUSIC4TRUTH....I put one bottle in about a month ago and today I saw that it was leaking again. Should I put in another bottle? Also, I put it in the reservoir.

@@Blickster i put about 5 bottles in and eventually scrapped the car. Not a permanent fix.

@@MUSIC4TRUTH.... 👍

It worked fine with the coolant in the radiator.

Says hot or cold engine on bottle

@@HondaBikerDad i used it didn't work for me guess crack on radiator was to big

I think it would work best on rigid sections. I think that if it is just a hose it would be better to replace the hose. It may work for some time, but anything flexible if moved could open up the crack as it is heated, cooled, heated, ... through multiple cycles.

Did you ever put more or did you just stop with the one?

It is only meant for small holes. I believe that it is made to not clog up hoses and heater cores, but I would only use this on an older vehicle that is near the end of its life and a repair is more than the replacement cost of the car (5 years) I would replace whatever part is leaking. As vehicles get older there will be rust and other build up in the heater core and if there is a restriction from the build up this could potentially make the build up / clog worse.

@@MountainManMo yeah my Fiero may have a bad head gasket so imma try this. Smokes quite a bit.

Sorry to hear that. Products with solids like these are good temporary fixes for small leaks, but can cause restrictions such as heater cores and other narrow sections to become clogged if they are already fouling. I had an old ford ranger that had direct flow through a heater core that became clogged just from rust and it would not provide heat inside the car. I removed the hoses and back flushed the heater core to remove the clog and was able to avoid replacing the heater core. The other question to ask is why was there a leak to begin with, could there have been overheating and over pressurization caused by a stuck thermostat or a bad water pump? Thermostats can also make it seem like a hose is clogged and are easy / inexpensive to replace (2 bolts, gasket, hose clamp to replace). Also, if there is no flow the water pump could be the cause. If there are any issues with the product I would also suggest contacting K-seal.

Still works ..first time I ever used it I forgot to shake

some of the solids may not come out of the bottle so just rinse the bottle out to get the rest out if needed.