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| # | Post Title | Result Info | Date | User | Forum |
| Answer to: 2013 Elantra piston knock | 21Relevance | 5 years ago | Razmig Bartassian | Submit Your Question HERE | |
| It could be either piston knocking or rod knocking. Hyundai's quality has been going downhill, and lots of people have experienced knocking sounds with them. In terms of the oil filter, I think there is some truth to that claim because rod knock is usually caused by low oil pressure (not enough to trigger the light) or, also probable, improper manufacturing. The piston rods are connected to the shaft via journal bearings. In journal bearings, the oil is used to spin the bearing, so you need really good oil pressure to maintain proper separation between the journal and housing. So it could be that the non-OEM oil filter is causing a slight difference in oil pressure to cause a slight rod knock until the engine warms up, but I think it's a manufacturing defect on Hyundai's part. I would give the OEM a try, but if that doesn't help, I would definitely try to demand the dealer to replace your engine since it only has 28k miles. | |||||
| Honda Odyssey 2012 Piston ring replacmet done now Cat is giving code | 21Relevance | 6 years ago | thomasguy | Submit Your Question HERE | |
| Hi Guys Code for Cat is P0430 I have a 2012 ody and just a few months ago at 144k the engine started misfiring. Did some research found it was "faulty piston rings" (burning oil and fouling plugs) brought it to the dealer and after a month-long hassle, I got it fixed under warranty. Now 2k later the engine light came on and I ran the codes and it is the CAT! I think it was the burning oil that messed it up. I did some more research on the "faulty piston rings and found it is actually the VCM that causes the problem but Honda won't admit to that. The cost of the CAT is about $1300CAD. 1 Should I try and get it covered by Honda? (the warranty for the CAT is 8 years, 130k & I'm at just over 8 years, 146k) 2Or sell the car? 3Or replace the CAT and sell it? 4Or replace the CAT and get a VCM muzzler to stop the VCM from coming into use and pray that there isn't too much damage already done. **I plan on doing some long road trips in a few months** | |||||
| Piston slap at cold start | 15Relevance | 9 months ago | TheBlackTop | Submit Your Question HERE | |
| Hey Scotty, My Racing Civic is currently at 73K miles and at every cold start at the morning before working, I hear what I think is a piston slap for 10 - 15 seconds and the it’s goes away. Now it’s almost at its next oil change. But when it’s hits 3k after the last oil change, the oil looks dark already like it need another oil change and I only use full synthetic oil like Quaker state, Mobil 1, Valveoline, Fram, Etc. So I’m gonna use liqui Moly engine flush before when I do my next oil change. I’ll like to know is there any other kind of remedy to silent it or I should do more than an engine flush. Thanks | |||||
| Answer to: 2007 Lexus RX350 - Piston Slap | 15Relevance | 1 year ago | aapicariello | Submit Your Question HERE | |
| When the car is in drive and I accelerate, I hear a knocking/ticking sound, which goes away once the engine reaches operating temperature. If I park the car and race the engine, I don't hear the sound, so I am almost certain it's piston slap, but I will take a video and post for you to hear. Thank you | |||||
| Answer to: 2007 Lexus RX350 - Piston Slap | 15Relevance | 1 year ago | Chuck Tobias | Submit Your Question HERE | |
| Are you sure it's piston slap you're hearing? If possible record a youtube video demonstrating the sound and post the link here. | |||||
| Answer to: 2014 Honda Odyssey Piston Rings | 15Relevance | 2 years ago | Edgarrr | Submit Your Question HERE | |
| Same issue here. I have a 4.6 liter v8 engine in a f150 2006. Took it to the ford dealer they did a compression test on it gave me a sheet of paper with the results and told me cylinder 4 5 and I believe 8 were low on compression specifically 4 and 5. Said new engine needed. Spark plugs were also covered in black oil completely wet past the threads. misfires pretty nasty at idle. at high speed no. Just goes to show. Scotty was right. You buy used vehicle, you're risking it. Engine has about 140k, and was used.. .Basically more than likely its bad piston rings right? | |||||
| Answer to: Hydrogyn gas engine conversion | 20Relevance | 4 years ago | Justin Shepherd | Submit Your Question HERE | |
| ... inefficient and what your friend is trying to do) or by cracking hydrocarbons at a refinery. The device he's using sounds like some kind of supplementary fuel source, it's not fully running the engine. It's not going to boost range enough to make the investment worth a thing. To really make a car run on hydrogen, a tank would need to be installed that can take the pressure of liquid or at least compressed hydrogen. Your gas tank cannot take these pressures, not by a long shot. It would need to be more like a propane tank, but much larger. Hydrogen isn't sp ... | |||||
| Answer to: How much boost is too much? | 18Relevance | 3 years ago | MountainManJoe | Submit Your Question HERE | |
| @justin-shepherdThis is a bit outside of the realm of DW's question. You're talking about maximums and he's looking for a minimum.Anyway, if you cool it, a gas can be compressed until it becomes liquid.Above -140C (-220F) air enters supercritical phase and can compressed indefinitely. Or eventually with enough mass and gravity to overcome nuclear forces, a neutron star.There must be pockets of gas deep in the core of the earth compressed more than 60:1. But yes, inside an engine we are limited by materials that man is able to produce, and the ignition tempe ... | |||||
| Answer to: Pre Combustion Devices to improve ICE Efficiency | 18Relevance | 4 years ago | Justin Shepherd | Submit Your Question HERE | |
| ... In the late 1950s, the bomber's turbojets weren't powerful enough to get the heavy jet airborne in the required runway distance, and engineers discovered that injecting a small amount of water in the exhaust stream produced a lot more thrust than the normal turbojet alone. The process was filthy for emissions and created loads of soot and black smoke, which contributes to air pollution. Not to mention the extreme tactical disadvantage if your big bomber is pumping out tons of black smoke that enemy fighters can see from miles away. Cars can't do that, imagi ... | |||||
| RE: Replacing piston rings on 4 Cylinder Camry | 15Relevance | 3 years ago | Shone200 | Submit Your Question HERE | |
| Hmmm but the Camry's use the same engines from 2002 to 2009. So it could be the piston rings. Or it could be just the age and miles related as well. It is a 2006 Camry with 375k miles. It burns about 2-3 quarts every 5k miles. | |||||
| RE: Replacing piston rings on 4 Cylinder Camry | 15Relevance | 3 years ago | Shone200 | Submit Your Question HERE | |
| Ok thank you. Yea it's just better to rebuild the whole engine instead of just replacing the pistons and piston rings. | |||||
| RE: Replacing piston rings on 4 Cylinder Camry | 15Relevance | 3 years ago | Shone200 | Submit Your Question HERE | |
| Oh it does burn oil and I know 4 cylinder Camry's from the year 2004 to 2009 have thin piston rings and they burn oil as miles rack up. We just add oil and top it off. It is not worth rebuilding an engine unless if you can do it by yourself and save a whole bunch of money on labor. | |||||
| Answer to: Replacing piston rings on 4 Cylinder Camry | 15Relevance | 3 years ago | Dad2LM2 | Submit Your Question HERE | |
| Yeah, I think you’ll have to pull the engine. What’s the problem with the piston rings? | |||||
| At205 and automatic transmission cluch pack piston | 15Relevance | 3 years ago | fc227a | Submit Your Question HERE | |
| Hi Scott, love the videos I'm a gearhead also. I own a 1986 Buick grand national. My question with the ar205 will that also help with transmission cluch pack piston seals? God speed and keep up the good work, Fred | |||||
| Answer to: Hyundai Motor Group | 16Relevance | 2 years ago | MountainManJoe | Submit Your Question HERE | |
| February 25, 2025 - The 2021 recall involving Kia Soul and Kia Seltos vehicles with the 2.0L Nu engines has been extended up to 2023 vehicles (another 137,000 units). The piston rings were not heat treated properly. This leads to damage to the piston and cylinder, seized connecting rod bearing, and ultimately causing the block to become punctured, and oil leaking out onto hot exhaust components, and fire. Kia engine piston ring recall letters are expected to be mailed April 4, 2025. . Kia claimed years ago that the heat-treating process was corrected with engines produced as of June 30, 2020. . | |||||