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Sedans Hyundai Sonata Hyundai Sonata Maintenance and Repair
3018 messages, Last post on Nov 30, 2009 at 5:13 PM
You are in the Hyundai Sonata Forum. Your Hosts are pat & karens
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Replying to: wanna_azzy (Apr 23, 2008 5:35 pm) Fortunately, this is not true. As an electronic designer of automotive electronics, I know that almost all electronic modules must survive both double battery jump and reverse battery connections. This is so by design specification. While I have not specifically designed for Hyundai, I have designed for most of the other manufacturers and know this is the case for (as a mininum) Ford, GM, Chrysler, Toyota, Honda, BMW, and Mercedes. TerryMSU |
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Please help, anyone who can: I have a 2009 Sonata V6 with eight hundred miles on it. Whenever I am "coasting" at 1200-1500 rpm and apply the gas slightly (and sometimes when I don't apply the gas at all) it shakes mildly and feels like it is missing. The shaking varies in strength, but is always there. Below 1200 rpm or above 1500 rpm - no problem. Dealer says this is normal, he can't do anything about it, it will get better as car is broken in. He's had the car a total of 8 days. I just can't see that this is normal for a brand new, quality car. Does anyone have any ideas/advice?
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Replying to: tomw6 (Nov 01, 2009 9:19 pm) |
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Replying to: tomw6 (Nov 01, 2009 9:19 pm) Some vibration when the gas is applied could be due to the engine lugging. Below 1200, the car could have already slipped into 1st so no problem. Above 1500, the car might have enough oomph to accelerate smoothly even if in a higher gear. One thing you could try is use the manual shift mode to deliberately put the car into different gears and see what happens. For example, put the car into 1st and get the revs around 1200 and see if it shakes when you accelerate. Or put it into 4th or 5th and get the revs to 1200-1500 and see what happens. You should also ask to drive another 2009 or 2010 V6 Sonata from the dealer's lot, with a service tech with you, and see if it exhibits the same symptoms as your car. |
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Replying to: tomw6 (Nov 01, 2009 9:19 pm) Do you have a true manual transmission? If so, it's a quick fix - make sure you match the gear you shift into with the speed you're coasting. That will avoid lugging the engine. Also, make sure you don't ride your clutch. If you have an automatic transmission, are you putting the car in neutral when you’re coasting then dropping it back into "Drive" when you need to accelerate? If you’re doing that, I would recommend stopping. That puts a lot of strain on your engine. If you are using the shiftronic faux-manual transmission, you may not be shifting properly. This, too, will cause lugging of the engine if not done properly. If you’re coasting, I’m guessing you’re on the highway. If so, you should probably just put the car in “Drive” and skip the faux-manual in the highway. You’re not saving any gas when driving at highway speed using the faux-manual. Furthermore, lugging the engine at highway speed will cause a lot of strain on your transmission and that will cause major problems down the road. The dealer may not have noticed the lugging because they didn’t drive it using the faux-manual like you do, and they just put it in “Drive”. Personally, I think the faux-manual can be beneficial in the city, but you might want to stick to “Drive” on the highway (assuming you’re using it on the highway). |
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| The manual calls for fuel filter replacement at 38k. But where is it and how do you change it. Every parts store I called said the filter is NON servicable. What is the scoop here? Does it need to be replaced or not? | |
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Replying to: woodchuck4 (Nov 08, 2009 4:43 pm) |
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Replying to: woodchuck4 (Nov 08, 2009 4:43 pm)
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Replying to: tomk17 (Nov 09, 2009 7:24 am) |
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Replying to: woodchuck4 (Nov 08, 2009 4:43 pm) The fuel filter is very important. However, the time to change it has varied from different cars I have owned. When I was a teenager, I had a '95 Ford Escort which advised changing it every 50k. More recently, I had a '95 Honda Accord which advised changing it every 35k. I'm not sure why there is a large difference in the length of time. Bottom line: you need to change it. When you change it is up to you. Just know that the longer you go, the more of a gamble it is.
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