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| # | Post Title | Result Info | Date | User | Forum |
| Answer to: Hydrogyn gas engine conversion | 21Relevance | 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 ... | |||||
| Could my car have a bad piston ring ? | 21Relevance | 5 years ago | Josecs9218 | Submit Your Question HERE | |
| I have a 2013 Chevrolet Cruze LS - L4 - 1.8L 1796cc 110ci FLEX MFI vin H type LUW - 4 valve DOHC. It currently has 80,200 miles, and I bought it a dealership pre-owned in July of 2021. I have 5 months with it and it is giving me some trouble. I got the vapor canister purge valve solenoid and the valve cover replaced because my check engine light came on and my mechanic told me those parts needed to be replaced. After the car was serviced the light went off and was running good for a couple of days, when afterwards my car started to want to turn off while I was driving. My rpm was going up and down and I had trouble accelerating because the car didn't want to advance. The car never turned off even though it felt I was going to, so I stopped and checked if I can hear a noise or something from under the hood but it was acting normal. I expected my check engine light to come on also but it didn't. So I used it later on that night and it was working fine. The next day I used it, it did the same and it felt like I was riding a horse, going back and forth inside my car, and I also saw almost like a huge white cloud come out of my exhaust. And every time I go up a hill or a bridge my car does the same, like it wants to turn off and like it's losing power. I feel like I have to step on the gas pedal a little more than usual when I go up a hill or sometime when I try going at freeway speed on the freeway. I have also seen that I'm losing oil. I check the dipstick and it feels dry and i know it shouldn't feel that way. It doesn't even reach the tip of the dip stick. I put in a quart that was left from my last oil change and it did appear on my dipsrick but barely making the tip of the dipstick. I read online that all these symptoms could be a bad piston ring. I just wanted to ask and see if it really could be a piston ring with all the symptoms that I just listed. The weird part is that my check engine light hasn't come on yet. | |||||
| PCV or Piston rings? (Maybe she's not dead) | 21Relevance | 5 years ago | 7.3PunchInA3.4 | Submit Your Question HERE | |
| I'm happy to say I may have spoken too soon regarding the death of my E-350. I have a few questions for those more mechanically inclined... So when I see massive oil consumption on any vehicle, I usually assume piston rings. Strange thing about my van's issues was the oil consumption was so sudden. It went from 0 when I parked it last to rolling coal this afternoon. A telltale sign of worn rings is usually oil burning at startup, from oil seeping into cylinder walls. However, I don't get any oil burned at startup, just a cloud when I give it throttle. This makes me think PCV. Is it worth a try replacing it? Seems like it! Between the suddenness of the issue and the lack of gradual failure, I have hope. Anyone have any tips/insight on diagnosing the PCV valve compared to piston ring failure? A friend who is a full time diesel mechanic also sggested the head gasket could be the culprit?I appreciate any tips. | |||||
| 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. | |||||
| Power Steering Leak | 16Relevance | 3 years ago | Tiber | Submit Your Question HERE | |
| I drive a 2007 GMC Savanah 3500 cube van (box truck) for work, and we have had repeated power steering leaks. The hose has been replaced, but it still leaks occasionally, though not as much. When the wheel is cranked all the way to the right or left it makes a rough grinding noise, but the steering functions fine otherwise. Would a liquid seafoam cleaner/liquid polymer be worth trying, or does this sound like another issue entirely? Thank you. | |||||
| Head gasket seal treatmenr | 16Relevance | 3 years ago | tullypw | Submit Your Question HERE | |
| ... on one of them. No liquid in the cylinder that I know of but it’s possible. It’s a 1986 VW Vanagon with the stock a 2.1 L water boxer. I have new plugs and will check for deposits and liquid before putting the k-seal in but I don’t plan on changing the plugs until the next day or so. | |||||
| Answer to: Scam additives and OBD gadgets - Fuel saving - Chip tuning - etc | 16Relevance | 3 years ago | Chuck Tobias | Submit Your Question HERE | |
| Nonsense. It's a liquid that will do nothing more than empty your wallet. If you would like to try contacting Scotty directly to see if he's interested in checking out this particular piece of hokum, instructions for doing so are in the FAQ. | |||||
| Honda Odyssey 2012 Piston ring replacmet done now Cat is giving code | 21Relevance | 5 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** | |||||
| 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 ... | |||||
| Answer to: Rotten egg smell while driving. | 16Relevance | 4 years ago | Justin Shepherd | Submit Your Question HERE | |
| Rotten eggs smell is caused by hydrogen sulfide. The battery contains sulfuric acid and lead. If it's overcharged, it can produce hydrogen sulfide. Sulfuric acid by itself has no smell. Sounds like your battery might be damaged or the alternator is overcharging it. Don't touch the liquid with your bare skin. Wear safety glasses, chemical gloves, and dissolve a little bit of baking soda in water. Dribble it on the liquid. If it starts reacting, it's acid. Figure out why it's leaking. | |||||
| Compressor/condesser | 16Relevance | 4 years ago | Bessie | Submit Your Question HERE | |
| Hii and Happy New Year I just got a Volkswagen Tiguan, 2011 model for my mum. Air conditioning wasn't working, so we bought a new compressor. After everything, we discovered that the liquid pipe gets very hot and the coolness of the car from the vent starts to drop. I've been told the compressor will burn in no time. What do we do about the heating liquid pipe? By the way, I'm in Nigeria. Thanks for all your help carwise. | |||||
| Low Coolant | 16Relevance | 5 years ago | NickWantsAToyota | Submit Your Question HERE | |
| Hey Scotty, Every now and then I check my coolant level in the reservoir tank. It keeps going down. I’ve pressure tested it and it held at 20psi for so long. I use that exhaust leak test test (blue liquid kit) and it stayed blue. I don’t see any noticeable leaks. What else can I do or is this normal to expel excess coolant? I’m going to try the blue liquid one more time but let the car run for an hour or so and see. I want to make sure the head gasket is good or bad because my extended warranty is almost up. Thanks | |||||
| Answer to: Hyundai Motor Group | 16Relevance | 1 year 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. . | |||||
| 2006 Toyota Camry 2AZFE Engine Rebuild Help | 16Relevance | 2 years ago | Shone200 | Submit Your Question HERE | |
| We have 06 Camry currently at 375k miles. Everything is good except it consumes a lot of oil. Those Camry's have a design flaw for thin piston rings. I poured the UV Dye and after driving it for couples miles, I thoroughly checked and couldn't find any leaks. So I know it's the piston rings for sure. I'm not planning on rebuilding the engine anytime soon , only for future reference when the engine eventually dies. So instead of just replacing the piston rings, I might well just rebuild the whole engine since I'm stripping the engine anyways and it takes a lot of time and work anyways to do it. We are a DIY and have never rebuild an engine before. I have been watching lot of YouTube videos and learning things on rebuilding 2AZFE Engine. So when I take the block to a Machine Shop will they let me know what size pistons and rings I need to buy after Boring and Honing Cylinders? Also will they let me know what size bearings I need to buy? Cause when I shop for pistons, rings and bearing its asking me what size I need. For example for the pistons and Ring sizes its asking STANDARD or OVERSIZE 0.50mm/0.020in. For the Main and Rod Bearings Size its asking me STANDARD , UNDERSIZE 0.25mm/0.010in or UNDERSIZE 0.50mm/0.020in. I am shopping for Complete Overhaul Engine Kit on Ebay or MagEngines.com. The kit on the dealer is way too expensive. Just for the rings alone they are asking $400. So I can can get a complete Overhaul engine kit on Ebay for $500 something. What does the Machine shop do to your blocks other than boring and honing? Do they do anything else? How much does it cost to Bore and Hone 4 cylinders? Also explaining to me in complete details from point A to point B helps a lot cause we have never rebuild an engine before. Thanks. | |||||