Title says it all. My 06 Civic DX has a idle misfire and I cannot pin it down. I've changed plugs, coils, and injectors. The only thing that I think it may be is maybe carbon buildup on the cylinder that is misfiring. Thoughts?

This might seem like a dumb question, but I can't seem to find an answer. What series of k-20 does my 2006 civic si have? Is there an under-hood badge I can find that will tell me exactly? Thanks guys, Lunchbox

Trying to figure out what to do? Head gasket so I pulled head and sent to machine shop. Machine shop said it is warped 0.015”. There is two broken bolts on the bearing journals I need to get out And cam does not turn smoothly. I got them to face anyways because it was in the machine and was...

Hello, I bought a Honda off a friend as a project it had a cracked block, I swapped the block from a local junkyard and now I am having trouble starting it. To further explain after swapping it the engine started I let idle for a bit and then turned it off ( it was over heating, changed the...

Out of curiosity, I wanted to know if there was a possibility my engine was replaced. I searched that there is a serial code on the engine block that correlates to your car's vin. I looked on the carfax and there was nothing. I also heard stories where the engine was replaced but did not show up...

I deliver pizza in my '08 Civic LX manual. I'm curious if it's more damaging to keep my car running between runs vs. turning the engine off between runs. when I put my car in first, give it gas, and let off the clutch sometimes it shakes a bunch. I thought maybe it was because of how long she...

Hi all, Needs urgent confirmation on this. The drain plug on my 2009 Civic EX was 17mm but stripped, so I took it to Honda dealership to replace it with new one while performing oil change. Guess what, the dealership replaced old 17mm drain plug with new 14mm drain plug, I double checked...

Can someone either take a photo or measure the clearance between the passenger side top motor mount in the closest to the front bumper from the engine bumper to the mount. Mine isn’t quite sitting on the bump stop but you probably couldn’t slide two quarters between the gap. I’m wondering if...

Hey guys I have a 2006 Honda Civic ex couple 2 door it has a 1.8 r18 engine or whatever they’re called, It’s a manual trans, I’m looking for a cheap engine as the previous one blew up, can pay like 500-700 just looking for an engine for a manual trans, thanks, I’ve looked all over eBay and all...

Hey, I've been dealing with this code for the past week or so. When driving the car would suddenly lose power when the CEL turned on. I replaced the throttle body and the accelerator pedal, now the car runs fine but the CEL comes on and the car gains power as in idles at 1800 RPM etc. Not too...

Hi Guys, Hope you all are staying safe. Mine is 09 civic sdn ex, the engine Crank - Do not Start Sometimes (Both Warm + Hot Start) This happened to me from time to time, just have not found the root cause yet. After I put gas paddle down either half-way and all the way to the floor, the engine...

Hi all, I have a 2009 civic EX (A/T with 173k miles). No mods (I did remove a shim from behind the AC Clutch to make it work, which it does so now). My cars mpg seems to be decreasing over time. I was getting ~35 mpg a year ago on the highway, now I get about 29 mpg. The spark plugs were...

2008 Civic EX Coupe 200,33x miles I don’t know if any has had this problem but I broke a PCV valve when I installed it into my engine. I thought the torque spec was 33 ft/lb but this prove to be too much for the valve and it snapped in half as I was torquing it in. The part was bought from...

Hey, my 07 Civic DX (90k miles, Minnesota winters the past two years) needs a head gasket replacement and most likely machining to the engine head to knock out some warping caused by overheating about a year ago. The shop quoted me a minimum of 3k for the job, after replacing the MAF sensor for...

I am considering buying an 8th gen civic, but after looking at it I noticed that there was a fluid dripping from the back of the engine bay. I checked it, and the fluid was odorless, and when I soaked some into a paper towel, it looked how I would expect water sitting on that driveway to appear...

07 Civic Si. I’m having a problem when it rains or I wash it. Water coming down the windshield and getting my intake filter wet causing my car to spit and sputter when driving and even when left Idling. I was told I’m missing the entire plastic shield if I’m not mistaking that goes being the...