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Coolant Leaking problems of the 2006 Honda Civic

33 problems related to coolant leaking have been reported for the 2006 Honda Civic.

car   Coolant Leaking problem 1
Failure Date: 02/24/2017

Was driving my 2006 Honda Civic home from school and suddenly noticed coolant leak/smoke. Took to Honda dealer who told me there was recall for cracked engine block but has since expired and now want $4500 to repair - more than the value of the car! I can't believe there's ever an expiration on a recall. Honda really wants unsuspecting people out driving with a known problem? there was no way for me to have known this potential problem since when I checked my VIN #, no open recalls showed up (I guess since it was already expired when I purchased it - July 2016 from used car lot). Pretty disappointing that a dealership could sell me a car with a known recall. Please help me. I'm just 17 year old student/athlete, hard- working and bought the car with my own $ and now feel ripped off and helpless. I've taken excellent care and pride in my car so this issue is devastating to me.

car   Coolant Leaking problem 2
Failure Date: 02/02/2017

Engine block cracked and is leaking coolant, requiring replacement of the whole engine. This is a known issue covered in Honda technical service bulletin 10-048, but that only extended the warranty to 10 years. My car was originally sold in July 2006, so this happened about 7 months past that 10-year cutoff. I've been quoted $5800 for a new engine, which is more than the car's value. There are many other owners of 2006 models in the same situation already, and there will be even more as each subsequent model year up to 2009 hits the 10-year mark. Luckily I caught this problem before it became a major hazard. First the car's heater quit blowing warm air, then a few days later I noticed coolant leaking from underneath any time I parked. I took it to a mechanic who found the crack in the engine block. If I hadn't noticed the leak and the coolant had been completely depleted, the engine could have overheated and possibly failed altogether while driving.

car   Coolant Leaking problem 3
Failure Date: 12/16/2016

The car has a cracked engine block and is leaking coolant. Per research Honda is aware that this is an issue for 2006 - 2009 Honda Civics and extended the warranty for 10 years on the motor. The original owner purchased the car in may 2006 and my daughter bought it from a dealership in December 2013. We were not made aware of an extended warranty on the motor or that this could be an issue. Honda was contacted and they are refusing to assist my daughter with replacement of a motor that will now cost her $5000 on a car she still owes on.

car   Coolant Leaking problem 4
Failure Date: 12/09/2016

Takata recall. I was at a stop light when I noticed that my car was running extremely hot. Smoke was coming out from under the hood, and it had run out of coolant. We then found out that it was leaking coolant from a crack in the engine block which is a known issue with Honda Civics from 2006-2009. When we contacted Honda they told me that the recall had been expired since may of 2016 and there is nothing they can do to help me. This crack in my block is due to Honda's negligence in manufacturing process of their engine blocks, yet they refuse to take responsibility. The car has had no other issues and has been properly maintained.

car   Coolant Leaking problem 5
Failure Date: 12/02/2016

The engine block started leaking coolant that caused overheating and damage to the engine. I discovered it while driving.

car   Coolant Leaking problem 6
Failure Date: 11/16/2016

The vehicle is has a defect in the engine where the lower engine block corrodes, leaks coolant, and then as a result overheats. This defect has been admitted to by Honda and they have issued TSB 08-044. This happened to me and as a result I was stranded without a working vehicle on the side of the road. I contacted Honda regarding this and was told my car is 2. 5 months outside the warranty. I was offered an insignificant amount of assistance with the cost of the repair. I understand the warranty is expired, but I firmly believe that Honda should take responsibility for their mistakes, which they have refused to do.

car   Coolant Leaking problem 7
Failure Date: 11/02/2016

The contact owns a 2006 Honda Civic. While the vehicle was at the dealer for an oil change, the technician attempted to drive the vehicle into the garage, but the engine failed to start without warning. The technician diagnosed that the engine coolant leaked onto the engine and caused it to shut down. The technician stated that the failure was not included in a recall. The contact found a TSB and made the manufacturer aware of the failure and a warranty extension that was noted on the TSB. The manufacturer stated that the extended warranty was expired. The vehicle was not repaired. The failure mileage was approximately 210,000. The VIN was not provided.

car   Coolant Leaking problem 8
Failure Date: 10/21/2016

Bought a 2006 Honda Civic with 54,000 miles in August of 2016. On a 6 hr trip to omaha nebraska the engine began to overheat. Pulled into a gas station and discovered that the coolant was nearly empty. When the car was taken to a Honda dealer I was informed that the engine block was cracked and leaking coolant. It would have been replaced by Honda but the extended 10 year warranty had expired by 7 months. Currently on the hook for $5200 because of Honda's known defective part.

car   Coolant Leaking problem 9
Failure Date: 10/14/2016

While doing general maintenance on my 2006 Honda Civic (stationary) I noticed it was leaking coolant. After working on the car to find the leak and doing research online I found out that there is a known manufacture defect for 2006-2009 Honda Civics that causes a failure and crack in the engine block. There is a 10 year warranty extension, which I am beyond by 5 months so Honda has refused to fix the vehicle under warranty. As an owner of two Honda vehicles I am severely disappointed, especially since I was never notified of this by mail or otherwise by Honda. I have received information from them regarding other issues on my 2011 accord, but never about the 2006 Civic. If I had I may have been able to identify this problem within the warranty period as a small leak before it began dumping/pouring coolant. Luckily, this never led to severe engine damage due to overheating while driving, which could have caused serious risk of accident and injury. In addition, Honda was exceptionally rude and unhelpful on the phone. After days of going back and forth with them they finally gave me a claim number for the issue. Once denying it they told me that I could call their claims department, which I already believed I was speaking to. To my surprise the number they game me was for the court system that had ruled on this case for Honda. So, after wasting my time with them they felt it was appropriate to play what amounted to a practical joke on me. The worst joke of all is that they have failed me as a customer in all possible ways. I fully believe that this issue should be made a complete recall, as it is a known manufacturer defect and no fault of any customer who owns one of these vehicles.

car   Coolant Leaking problem 10
Failure Date: 09/27/2016

The contact owns a 2006 Honda Civic. While driving approximately 50 mph, the engine stalled without warning. The vehicle failed to restart. The vehicle was towed to an independent mechanic where it was diagnosed that the coolant system was leaking and the engine needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 13,234.

car   Coolant Leaking problem 11
Failure Date: 08/12/2016

On the date of August 12, 2016 (Friday) at or around 5:40 pm est. The vehicle broke down in motion and was unable to drive due to something involving the engine. The vehicle was on a city street. It had to be pushed off the roadway. Noticed coolant leaking on the ground from the engine. The vehicle was towed by aaa to our local repair facility. On Monday morning August 15, 2016 the vehicle was diagnosed as having a cracked engine block. At this point I had information on Honda's engine block problems. 2006 Honda Civic ¿engine block crack¿ technical service bulletin 10-048: the problem: the engine block may leak coolant, resulting in engine overheating. Corrective action: dealers will replace the engine block free of charge. Warranty info: repairs will be done under an extended warranty (10 years from the original date of purchase, no mileage limits). My 2006 Honda Civic was purchased August 14, 2006. The engine failure happened during the warrant period. My local Honda dealership and american Honda refuses to repair my vehicle at 100% they offered split cost for the engine block of 10% for me to pay. They also said the the gasket cylinder head was damaged due to over heating because of the cracked engine block. They had me pay 50% cost of the repair. They also had me pay 10% for replacement of coils. All this damage was due to the faulty engine block. TSB states replace the coils and check for head gasket damage. If damage is found go to step ?? I conclude it means replace the gasket cylinder head. Honda clearly knows of this issue and has not issued any recalls. Vehicles dying on the highways and byways in traffic and motion should be a safety concern. My vehicle was in warranty I should not be paying anything. I did not even ask for towing or alternate transportation nor was any offered. TSB 10_048.

car   Coolant Leaking problem 12
Failure Date: 08/09/2016

Car began overheating while driving. Upon further inspection a hairline crack was visibly leaking coolant on the engine block. Dealership has informed me that it is the crack from TSB 10-048 but will not cover said issue because the car is out of the warranty time limit . As a side note, being the third owner of the vehicle I was never notified of the extended warranty/ issue.

car   Coolant Leaking problem 13
Failure Date: 07/30/2016

Noticed car temp rising and getting hotter, no indicators or warnings lights. Let car cool off and noticed the coolant was extremely low, car had all fluids topped off during a recent check up. Added coolant. All seemed fine till the next weekend when car started heat up again, brought car into shop. Found engine block cracked and was leaking coolant. Upon future investigation crack is same location as reference TSB no. 10-048. Since this happened 20 days after the 10 year date Honda is refusing to replace. We purchased the car a year ago from a dealer and was not aware of this issue.

car   Coolant Leaking problem 14
Failure Date: 10/22/2015

Barely 20 days after the warranty my car stopped on a highway with white fumes under the hood. With brakes, transmission, accelerator not working, I had literally rely on my luck to get it out of the last lane onto a shoulder. It was scary. I towed the car to a nearest dealer. He diagnosed cracked engine block due to over heating, coolant leakage. I had replace the engine for 3494. 90$.

car   Coolant Leaking problem 15
Failure Date: 08/10/2015

Vehicle began to overheat at low speed. Cel came on and started blinking and vehicle went into "limp mode". Vehicle could not go over 10mph. Car returned home and code indicated misfire in 3rd cylinder. Coolant was extremely low and a small amount of smoke/steam could be seen coming from tailpipe. Pressure test of coolant system revealed leaks in all cylinders (primarily c3). Compression test indicated crack in head (near intake). Possibility due to overheating and warping of head. Called Honda America to verify that issues is covered under warranty (specifically TSB 10-048). Honda America denied warranty because the TSB only covers specific external cracks in the engine block. The cracks on this vehicle were likely inside the head, possibly inside of cylinder. Cause of initial overheating remains unidentified. Honda America maintains that this warranty is specific to external cracks.

car   Coolant Leaking problem 16
Failure Date: 05/01/2015

2006 Honda Civic. Consumer writes in regards to coolant leaks coming from engine block and transmission. The Honda dealer verified the engine block was cracked. The consumer was informed the vehicle was not covered under warranty even though the VIN was the correct year to be covered. The consumer was informed it would cost 5,000 out of pocket.

car   Coolant Leaking problem 17
Failure Date: 05/02/2014

Car began to overheat rapidly at highway speeds. Smoke and burning smell was coming from engine. Was able to pull over and have car towed to Honda dealership. Found all engine coolant had leaked out through crack in engine.

car   Coolant Leaking problem 18
Failure Date: 05/24/2013

My car starting leaking coolant antifreeze on friday24 may. 2013 I took it to pepboys on may 27th 2013, they told me the engine head was crack. I will take it to maroone on may 28, 2013.

car   Coolant Leaking problem 19
Failure Date: 05/08/2013

The vehicle suddenly lost engine coolant as a result of a crack in the engine block. It quickly overheated, and the only warning was that the temperature gauge had risen. There were no other warning signs. A mechanic confirmed that the block was cracked, and that almost all the coolant had leaked out. I believe that the engine could have reached a temperature that could have started a fire if I had not noticed the temperature gauge rising rapidly.

car   Coolant Leaking problem 20
Failure Date: 09/04/2012

The contact owns a 2006 Honda Civic. The contact stated that smoked started to emit from the engine compartment due to coolant leak. The vehicle was taken to an independent mechanic who diagnose that the engine block cracked due to defective material. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure and current mileage was 65,000.

car   Coolant Leaking problem 21
Failure Date: 05/13/2012

Sunday on my way back home I smelled coolant, I stop immediately and checked it out to find a puddle under the car. Coolant was leaking. I called for tow truck and tow car to auto shop. The next day I found that the engine block was cracked and this why coolant leaks. . . . Many people had the same casting problem with these engine blocks.

car   Coolant Leaking problem 22
Failure Date: 12/26/2011

Coolant leak. Engine block cracked, confirmed by mechanic.

car   Coolant Leaking problem 23
Failure Date: 11/26/2011

The contact owns a 2006 Honda Civic. The contact stated that steam emitted from under the hood abnormally while sitting at a traffic stop. The contact discovered coolant was leaking from the engine and that the engine was cracked. The vehicle was not taken to the dealer and the manufacturer was not contacted. The vehicle was not repaired. The failure and the current mileages were 35,000.

car   Coolant Leaking problem 24
Failure Date: 08/17/2011

The contact owns a 2006 Honda Civic. The contact stated that the vehicle was taken to a local mechanic for repairs under a manufacturer's engine block failure warranty in March 2012. The local mechanic replaced the engine coil and the engine sensor, but the failure was not corrected. The vehicle developed an engine coolant leak. The vehicle was taken to the dealer where the dealer inspected the vehicle and located the failure as the engine block being cracked due to defective aluminum. The dealer replaced the engine block, the timing chains and the spark plugs. The vehicle was repaired. The manufacturer was made aware of the failure and denied assistance with the repairs. The failure mileage was 61,000 and the current mileage was 63,000. Updated 04/25/12 the consumer stated she experienced several problems related to the crck engine block, which wasn't located until March 2012. Updated 06/25/12.

car   Coolant Leaking problem 25
Failure Date: 12/08/2010

I have a Honda Civic 4dr sedan 2006 purchased in Nov 2005, it currently has around 43800 miles. When I turn on the heater, I can smell strong burning antifreeze/coolant and smoke coming from the engine. Finally I took it to the dealer after living with the problem for 3 days and he said I had a engine leaking coolant with a cracked engine block and Honda is ready to replace the engine block as the vehicle is under warranty. I am worried it might happen again. Please ask Honda to issue a official recall notice so that my engine is covered for atleast that particular problem, so that I don't have to pay if the same problem happens again once my warranty is done.

car   Coolant Leaking problem 26
Failure Date: 05/14/2010

Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6) I just wanted to notify your agency about a vehicle that I financed almost 2 years ago, but there's issuing regarding Honda manufacturer not covering the defects to leaking coolant from the engine block of 2006-2008 Honda Civic, (except hybrid & si models). This is an actual issue that I've read through carcomplaints. Com and either Honda would not pay at all or Honda would pay a portion of the repairs and leave the rest for customers to take care of. My concern is that this problem is not caused by individuals, but on its own. Also, these major repairs are very cost effective and some of us are not able to pay for this, me especially. Majority of these Honda owners are just past warranty or way past warranty. This problem could possibly cause your vehicle to overheat and catch on fire, especially if you're driving long distance. Please email me as to what your agency can do to resolve this problem and possibly have Honda recall or repair these defects 100%. Thank you for taking your to read my voiced concern. [xxx].

car   Coolant Leaking problem 27
Failure Date: 11/12/2009

2006 Civic cracked block issue. On Nov 10 I realized I had a coolant leak and took it into a local mechanic and he showed me I had a coolant leak on the front of my motor. I did a little research and found there is actually a TSB report about a cracked engine block due to casting porosity problem. So I took it into my Honda dealership and they confirmed that this was in fact the problem and proceeded to try and charge me $5500. . Oh wait they were going to cover 25% how nice. Before I left I had got them from 25-40% but to me that is still unacceptable. According to the actual Honda service bulletin, which was issued in may 2008, actually circles the exact spot where my leak is and still refuses to cover the cost due to my mileage. I think this is outrageous!! the TSB verifies that Honda knows this a problem although they will not step up and fix their known defect. .

car   Coolant Leaking problem 28
Failure Date: 10/30/2009

Was driving 2006 Honda Civic home from work and temperature gauge went to hot. Mechanic said coolant leaking from cracked engine block. Car was unusable without being repaired. Replaced entire engine because was less than replacing engine block. Old engine is available. 2 special bulletins from Honda on cracked engine block. Honda refused to pay anything.

car   Coolant Leaking problem 29
Failure Date: 05/16/2009

2006 Honda Civic sedan with 68,000 miles had two cracks in the engine block causing the coolant to leak and causing the car to overheat suddenly without any warning. Also, the rear tires only last about 15,000 miles before they develop a flat spot. There are two service bulletins issued by Honda on these malfunctions but unfortunately they are not admitted as a problem with the car until after the powertrain warranty runs out. Honda dealerships have acknowledged these are defects in the car and are widely known but Honda refuses to cover repairs or will only pay for partial repairs. The engine block is a casting problem per the dealership and the rear wheels are a control arm problem which causes premature uneven wear and possible blowout. Honda refuses to pay for the control arms at all. Thankfully we did not have any crashes or injuries due to catching the problem before anything happened. Unfortunately, the first dealership I went to tried to hide the problems and would not acknowledge it is widespread in 2006 and 2007 Civic models. I am being forced to pay for a portion of the engine block and all of the control arms to fix the problems.

car   Coolant Leaking problem 30
Failure Date: 05/08/2009

I was driving in 5/8/2009 on interstate 205 in California. My engine began making loud metallic clanking sounds and then I heard what sounded like liquid flowing under the car. My car began to decelerate quickly and I forced to pull over to the side of the highway. Once I was stopped on the side the metallic sound got louder and the smoke started coming from the right side of the hood. I had to have the car towed to the local Honda dealership where they stated that the engine block had leaked coolant and had caused the block to crack. After checking online I found out about TSB 08-044 a problem which the engine block cracks and coolant leaks from it causing overheating, and spoke to the service manager there about it. He was originally wanting to repair it for me but was overulled by his regional manager who said they would not repair it because I was out of warranty. I went on to send complaints higher up the chain at Honda but continued to be told I was not under warranty so they would not help me and that it would end up costing me over $5000 to replace the engine. I then ended up having to go to a private garage and ended up spending $2,878. 53 in 7/2009 to replace the engine, plus $432. 96 for a rental car for me to drive. I had recently checked back to see if they had updated the TSB to a recall but more owners have had this problem, so I wanted to issue this to see if can be investigated.

car   Coolant Leaking problem 31
Failure Date: 04/14/2009

My 2006 Honda Civic has a cracked engine block after only 84,000 highway miles on the car. The only indication I had of a problem was when my car overheated suddenly. When I checked the coolant level, there was nothing there--despite the fact that I'd had an oil change within the past 4 weeks and all fluids had been topped off then. My mechanic then discovered that coolant was leaking from a crack in the engine block. This is a serious safety issue. The problem comes on with virtually no warning, and I was lucky that the car did not break down in the middle of the highway. My mechanic could not think of any reason for this happening other than a manufacturer's defect. I am now in the process of getting the vehicle serviced by Honda and applying for after-warranty assistance. I have read online that this has happened to numerous other 2006 Honda owners. I also found that Honda has issued a technical service bulletin (08-044) for this exact problem. If this is enough of a problem that the company has issued a bulletin to its service departments, why hasn't a recall or even an owner notification been issued?.

car   Coolant Leaking problem 32
Failure Date: 02/22/2009

2006 Honda Civic lx with 78,000 miles began leaking coolant. Had vehicle looked at Honda service dept and informed it was due to a cracked block and would require a new engine. I have read multiple complaints about this same issue with Honda Civics 2006-2007 with mileage from anywhere between 13,000-120,000. It is reported to be a problem with the casting on this model. Honda has a service bulletin (08-044) posted. No assistance offered from Honda for repairs even though this is a known problem.

car   Coolant Leaking problem 33
Failure Date: 09/22/2008

I have owned a 2006 Honda Civic ex for a little over 2 and a 1/2 years now. Less than 6 months ago, I noticed that my vehicle was leaking engine coolant. I spoke with a technician at my dealership who told me to bring it in. When I did, they informed me that there was a "hair-line fracture" in the engine block that was causing engine coolant to leak and also to mix with the oil in the engine. My vehicle at the time had only 26,731 miles on it, so the dealership was able to repair my vehicle at no charge. On top of the engine trouble, I have also had to get the windshield wiper fluid pump replaced and also two sun visors inside the vehicle that fell apart replaced as well. All replacements, luckily, were provided at no cost by the dealership.