Best Head Gasket Sealer For Headgasket Leaks





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CORVAIRWILD: I used K&W nano in my wife's '95 diesel 6.5 Sub w 260k. It was using 1 qt every couple hundred miles. since winter was coming, and a rebuild is thousands of $$$, I tried the K&W, followed directions to a T, and water consumption is way down and engine rumble/misfire is gone. It's been about 4k, so far so good. I made a video of the entire procedure, it may show up beside yours. Thanks for the nice video, well explained

OldskolFan: You should recommend only using distilled water because regular water can leave calcium deposits?

dtv4334: my 460 v8 78 lincoln engine smokes white and shakes when i first start it. after like 10 mins it runs fine. do you think its the head gasket? it is not leaking coolant 

OldskolFan: My car is leaking coolant and I was told to replace the coolant temp sensor. But they want to do a valve cover gasket and intake manifold gasket replacement as well? Aren't those for oil leaks? I know I have oil leaks but will sealing those help my overheating and leakage problems? I have a new water pump and radiator but sill leaking coolant? 

Ǥ: omg

Paul Deebo: Will k&w liquid do anything to the thermostat if I dont remove it

Lindsey B: Hello, I have a 2000 Oldsmobile intrigue and the head gasket is blown. When the problem first occurred I took it to a mechanic and he checked my hoses and changed my thermostat (after we changed it we seen it was bad, so glad we did change it). After doing that the car was still running extremely hot, and also began leaking coolant and water. He told me it was the head gasket. I bought some K&W sealant that your taking about in the video however, I have yet to use it. I no longer have the mechanic, doo I would need to do it myself and well the instructions call for what seems like a lot of work. My questions are, 1. There is no radiator cap in the front, so do I drain from the coolant reservoir? 2. Do I need to take the thermostat off? Thank you 

Jesse Mcnab: Help, my 05 dodge Dakota 4.7L v8 just started to over heat yesterday, noticed it when in idle waiting in drive through line, after I started back home the motor cooled back off, now today it has gotten worst to the point where the coolant completely drained from the reservoir. I don't see any white smoke, the oil is normal colored and I even took the radiator cap off, filled the reservoir and cranked the motor when cold and nothing spilled out of the overflow. So confused on what it might be.

saidee renee: Thanks for the video! I was unsure about additives and block sealers and what not. but that made up my mind. gonna give K&W a try. We have a 1999 grand am it's a good little car in great condition that we bought as a spare being my truck gets such terrible mileage, everyone in the family likes it so it is actually used daily, I'm positive at this point it's the head or gasket. I've changed thermostat, reservoir cap, checked for external leaks by pulling it on ramps and letting it idle about an hour, not a single drop on the floor, will hold pressure all night and we DO have to add coolant daily as long as you add coolant it doesn't overheat just getting rather expensive, checked the dipstick several times and not any sign of water but today i took the oil filler cap off and sure enough the cap had that same ol foamy whitish build up I've seen before. normally I'd just bite the bullet and have the gasket and the head work done it just doesn't seem very cost effective to put $1500 in a car that's only worth about $1500 lol so I'm gonna try the sealer today or tomorrow keep our fingers crossed and let you know it goes. thanks again!

Dana Stamey: Austin, I have a 2000 Subaru Forester...I've been having to put 1-2 quarts of water every time I drive 50 to 100 miles...don't see any water on ground when driving...it recently started overheating...with just a little white smoke out the tailpipe every now and then...it's been overheating some...thought it was the thermostat...got one bolt out of thermostat housing and couldn't get other one out...and decided to wait on thermostat replacement...also no water on oil stick...my friend also done a Burp test and it bubbled a lot...he also thinks it could be the head gasket..."where do you buy the K & W Block Repair"...the one you were talking about that has the copper in it? Please help...do you think thermostat or head gasket...can't afford a head gasket job since I'm just working part time...Thank you! 

Arturo Pavon: Thank's for the info great tips...

john whitelow: I got a 2002 Buick Rendezvous. New Spectra Premium/Radiator, New Duralast Thermostat, New A/C Condensor, New Upper and Lower Hoses and Clamps. Still has Cooling issue... Tested water pump when replacing radiator and seemed to be working. Now it does have white smoke coming out the tailpipe and the check engine light came on.

Orlando Ferrassoli: I have a Dodge Grand Caravan 2003 that overheated, now lost a lot of its original power. There is no white smoke coming out of the tail pipe, but just what it looks like water. My mechanic did a quick check and saw that there's fumes coming into the radiator and it won't pass the smog test (that I need right now). He said it is very likely a blown head gasket. But, could it be a crack in the engine too? I have some oil on the floor too. Would K&W work for both engine (if it is) as well as the head gasket. I am willing to try, but would like to hear from you first. Thanks :)

Huud Warsama: Had a head gasket leak a week ago, followed your instructions and it seems to be working fine so far. Two questions, when I drained out the radiator there was still some antifreeze residue in the reservoir pump, but it was a very small amount, could it affect the sealer? And am I better off doing this in comparison to just replacing the head gasket which could just very well blow again? Thanks.

SolarUmbra: I have a subaru with an external headgasket leak. will this work well for me? if so, how long will it hold for?

bluecanoe17: Two issues: Many Silverado trucks had heads cast by 'Castech' that have porosity failures, resulting in coolant leaks into oil or combustion chamber, or both. Will this product repair that problem as if it were a standard blown head gasket leak? ALSO, Is there a capacity issue with this product? Meaning, if I am putting it in an 8 cylinder engine, which has a much larger volume of total coolant than a 4 or 6 cylinder, should I use more than one jar of the K&W? I have gradual coolant loss on a 6.0L 2004 2500HD. No oil/water mix. Some white smoke in exhaust. Should I try this product, or just get new heads?

moises lopez: Hi ..will the radiator gets blocked with that product ?.....Thank You.

Jayanath gampalage: I have Toyota Vitz / Yaris SCP10 1.0L (Year 2000) hatch back. Recently I flushed the radiator and added coolant and water. Few weeks ago it showed the Heat Bulb (Blinked) and I stopped the car and checked the coolant level, and it was dropped. I filled with water and came home went to mechanic and it shows bubbles in radiator coolant. There is no sign of miss or compression loss.. but small / Tiny bubbles like foam pops out from the radiator coolant. Mechanic said there is a head gasket leak. Could u please give me some advice 

Ken Tseng: Awesome video. Thanks for sharing. May I ask : I never overheat my 95 Nissan Maxima , I only drive like 3~4 miles from school to home, and local use less than 50 mile per month, I would say. But about two months ago, it starts to leak coolant somewhere, so, I have to add coolant + water like a half gallon every 2,3 days. This morning, my car started to act up. Engine idle gets very low, but still stable @ around 500 RPM. I don't see any white smoke coming up, but I can see the oil is muddy color, like brown, or coffee color actually. Do you think I have a blown gasket? and does the K&W would work on my case? Like you say, the mechanic wants to charge me 1,400 for blown gasket, that's absurd! Thank you in advance for your answer.

Jason Henriques: great explanation, i just had a question regarding my 97 Mitsubishi eclipse gst i have a problem with my head gasket theres oil leaking along the top to the bottom and theres spots on the floor and the engine light doesnt determin anything wrong with the car can you help me out 

Frist Last: Great Vid. Wish you were in Australia!

King Burns: My 2002 malibu doesn't smokes it just runs hot. But its the heads. Could blue devil fix the leak.

CrzyNV Miles: How would you rate their pour and go product? Is it a just as good you think?

Karen Admire: I would like to know if you remove the thermostat when you use your directions? 

007secretspy: Thank you the informative video. My 2001 Nissan Xterra 6 cylinder seems to have some symptoms of a head gasket leak but not at the same time. When I start my car and start increasing the RPMs, there is a little white smoke and water coming out of the tailpipe. This only happens for a few minutes and then it does away. I checked my oil dipstick and there is no milky substance. My engine seems to overheat sometimes. It's rather inconsistent. Today it started to increase in temperature after driving on the freeway for 45 minutes (no traffic) and wouldn't go down even when I wasn't idle. There was no steam/smoke coming from under the hood. When I stopped the car I could hear boiling sounds coming for the radiator. (Radiator and resorvior we're NOT low on coolant). Again, the car temp was completely normal for the first 45 minutes or so of freeway driving then all of sudden the temperature shot up. I'm getting mixed signals from my car.

mike p: You forgot to mention; exactly how much tap water do you mix with the engine block sealer? I don't want to mix too little or too much water.

Geo: will it work as a preventative fix.. Some people suggest using Steel Leak as preventative measure to extend the life of a head gasket, I wonder if this will do the same thing..

MisterNifty: It is already steam before it leaks into the cylinder or, being water is incompressible, it would ruin the engine. Ditto for the Anti-freeze. . 

Konnor Rice: I have a question about our air conditioner. it only works whenever we are driving and it takes forever to get cool. We have tried free-on and it doesn't work. whenever the compressor kicks in it makes the engine idle rough... do you have any ideas?

Tamara Rowe: I am wondering if this is what my problem is...I am losing coolant from the overflow reservoir. There are no issues when it's pressure tested...The water pump, clutch fan and thermostat have been replaced. 

Rich Grome: I have an '06 Hummer H3 5 Cyl. My mechanic has now suggested I might have a head gasket leak after we replaced the radiator and thermostat twice, the water pump, the serpentine belt & tensioner and the fan clutch too all to get the engine temp to normal as it was running hot. With the A/C on it was pegged at 3/4's. If I turn the heat on it goes back to normal. On warm weather days it goes past the centerline but stays below 3/4's. There is no outward coolant leaks, and no coolant in my oil. He only charged me for the 1st radiator and thermostat and did the rest of the work for free since he was embarrassed for not figuring out what was wrong sooner. Now he says a head gasket job is about $1700.00, he instead recommends I just get a new engine (rebuilt) since my engine has 170K on it anyways. An engine replacement he says will cost me about $3200. Should I try this sealant out first? Any advice/thoughts on the matter I would appreciate. Thanks

Rajan Haridasan: Hi, please advice if there is any other product other than K&W that works .. (ford focus 2002) also I have had my engine gauge in the car heat after my radiator was re-done and a new thermostat put in .. Now the heat of the engine in the dashboard reached the red mark and I shut down the engine and waited till the temperature came down. When I opened my bonnet the coolant tank was boiling. Kindly help ..

Danny Rorabaugh: TrustMyMechanic.com just wondering.. I had to replace my rad iator. So Ipurch ased one, installed it, and burped the system. Now the temperature would go up, down, up, down.. and when I shut the truck off it bubbles out of the coolant reservoir. So I replaced the radiator cap, thermostat, and water pump. Temperature is now running correctly. Heat runs like it's supposed to. But still having bubbling issues. Bubbling is not near as bad as what it was. Pressure tested system, and tested fine. So.. I guess next step is to have the it chemical tested for exhaust gas in the coolant? If it is a head gasket, will running the K&W water mix seal up water ports in the heads? Just not sure about it. But I'm also not made of lots of cash to fix the gasket at this time as well. Any info would be much appreciated! 

mcarino98: My radiator hoses gets really hard when engine gets hot. my engine doesnt overheat but bubbles comes out of radiator during cold start. No coolant on oil and vice versa,no coolant on tranny fluid as well.coolant looks clean.my exhaust is kinda moist too even after driving. Do I have a blown HG?

TRUTH4U2NO: Alright so dont follow the manufacturers directions on bottle. So you you answered the question are you a rep for the product...I gather not. Sorry I think Im gonna follow the directions.

saidee renee: by the way do you use the same procedure you spoke of when using the k&w NanoTechnology

Arturo Pavon: HI great video I have a 95 saturn i change my water pump a termostat and its still over heating ha ve a new radiator what can it be if you could please help

Nj Medic: Any difference in your process with the newer "nano". Since the nano has no metal in it, do you really want to run it for 500 miles, especially since the bottle says don't drive at all, just idle. Not to mention 500 miles on a car running on 3 of 4 is almost painful, may take you years just to get where you are going :-)

PZtheDrummer: So I replaced thermostat radiator plus water pump and still losing coolant I believe it's internal I see white smoke not a lot but def some also when I fill coolant and check a week later it looks like coffee the symptoms so sign of warped gasket. This is a 94 ford ranger with 214k on it is k&w ok to use

eladio beltran: Thanks I find the instructions !

Vedric Jordan: Hi, I have a 2002 dodge stratus coupe SE, 6 cyl my exhaust started to shoot white smoke and my car acts like it want to turn off, i stopped driving due to being worried. my mechanic said it is a blown head gasket because when i drove the car began to smoke due to gasket leaking oil as well, I noticed there are several brands to engine block seal k&w, which do you think would be best for me. the mechanic said blue devil but i would love to try this one. what is the general price range so i can know which one to buy. Thank you sorry for the long question.

SickDuck: I have a 98 ford explorer I have white smoke coming from my exhaust pipe. I have to add coolant almost every other week. I'm not sure about the head gasket and I don't think I have any over heating problems. Should I try this?

fatwan munaser: Hello, Thank you for the video Jeep Cherokee Loredo 2005 110,000 miles Cant say that I did much in terms of maintanance besides oil change and coolant flush. I know I seriously need to learn more to keep my vehicle maintained. History: 1.Coolant flush last year. 2.1 Month ago my car overheated and the waterpump was making noise and shaking. Took to the Mechanic and he replaced the waterpump since it was bad. He took the radiator cap off and seen the coolant was "caked up" on the cap. He mentioned that the caking up of the coolant is probably due to the radiator is cloged with 'gunk'. 3.After the water pump replacement I have had no Overheat problems it looked like my overheating was indeed due to the waterpump since I have no overheating now over a month with no problems. 4.I recently noticed that in the morning (after the vehicle has been sitting overnight) when I start the vehicle that white smoke appears from the tail After driving for a few minutes there is NO MORE white smoke at all. 5.I decided to take it to a mechanic to get it checked out. He did a block test and after a few minutes the color remained blue. After a few more minutes it started changing to a bluish green color with a hint of yellow. He mentioned that this means that there is a blown head gasket. Side note, with the radiator cap off and engined cooled down a little the machanic started the car. The coolant remained put and DID NOT overflow. Suddenly after about 5-10 minutes the coolant began bubbling and overflowing. Again note radiator cap was off the whole time. question: Is this suppose to happen when the vehicle gets hot enough that the coolant will bubble up and start overflowing? Or could this also be a problem? Please let me know your thoughts. Question: 1.I am confused how this is a blown head gasket for the follwing reasons: -No Over heating at all -coolant appears to be full -White smoke only when starting the car in the moring when the vehicle has be sitting overnight. Also White smoke clears up after a few minutes of driving Does this sound like a blown head gasket? If so, will the sealant you mentioned in your video work for this case? Your details are much appreciated since I don't know a lot about cars. 2.How do I have caking up in my coolant on radiator cap if I flushed the system last year? 3.How can I tell if the radiator is bad and needs to be replaced vs. radiator just needs to be flushed? Thank you in advance I learned a lot from your videos and hope to learn more!!

Jeremy Damsgard: I have a 2000 Cherokee with the 4.0L. I'm pretty sure it has the 0331 cylinder head crack issue as the coolant is magically disappearing from the overflow tank. I have a bottle of the K&W in the green plastic bottle. 1) The bottle says to simply add it to the radiator. Should I disregard and follow your instructions even though it is a different product than the one described here? 2) Have you tried this stuff on any of the Jeeps with this issue? 3) Any further advice? Thanks in advance!

theundergroundhits: so does nano technology also apply the 500 mile theory as well?..

Demetrius Cole: Mix it with what?????

allsaw31: I got my radiation replaced on my 06 equinox but still having an overheating problem. And coolant is leaking from overflow hose. Would you recommend the k&w block seal for this problem? 

cynthia camacho: Hi. I have a 2005 Pontiac vibe. I went in for an oil change and they took me to my car while up in the air and showed me I have an oil leak on the back of my engine. They said there was no milky look in my oil but said i may have a head gasket leak. I don't recall overheating my car and i don't have to put water in it very often and there is no white smoke

Ashmoh91: I have an 89. Honda civic and I do not have milky oil or the bubbling in the radiator I do how ever have white smoke. And I little bit of roughness to the engine. I am so concerned that any sealant product will damage my car. I have had mechanic friends tell my to kljust replace the gasket but I do not have the money right now. I truly need to know that this or any other product will not clog or ruin anything else be for I use it. 

eric beauchamp: This video has been quite helpful, thanks! My 04 focus is on its' last leg anyway so I don't mind if I mess up a few parts BUT what is the significance of removing the spark plugs and/or thermostat or leaving them in?
Rating:
Best Head Gasket Sealer For Headgasket Leaks 4.6 out of 5

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Best Head Gasket Sealer For Headgasket Leaks