Question about Hyundai Accent
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Posted on Jan 02, 2017
You should check for a vacuum line or no vacuum condition at the modulator valve. Under acceleration there is low vaccum at the modulator so the trans thinks your are trying to pass, once you have achieved the upshift speed, a higher RPM than normal the care will shift hard. The service manual can show where to look for this valve. Hope it helps.
Posted on Feb 18, 2009
It is a proprietary Hyundai transmission fluid. Don't use anything other than the Hyundai stuff. This fluid has superb lubrication properties, but it breaks down much quicker than the specified 30,000 mile fluid change intervals. I highly recommend having both the fluid and filter changed once a year or once every 15,000 to 20,000 miles.
Posted on Apr 20, 2009
SOURCE: 2000 hyundai
It sounds like the fuel pump is getting a bit weak, and when you remove the filler cap, this relieves pressure within the fuel tank. A good local mechanic should be able to quickly test the fuel pressure generated by the fuel pump. Many auto parts stores sell a fuel pump pressure tester. But working with fuel lines and raw fuel isn't a good idea unless you know what you are doing. It could be the fuel pressure regulator valve, but this is less likely.
Possibly your engine could have a serious vacuum leak somewhere on its intake side of the engine, but you would have other symptoms aside from the specific symptom of having difficulty starting the car after filling the car up with gas.
It occurs to me that the following test might indicate a failing fuel pump:
After driving for a while (at least 10 minutes), turn off the car, then take the gas cap off to relieve tank pressure, put the cap back on, and then see if you have difficulty starting the car. If you do, then a failing fuel pump is the problem. Well, at least if this test confirms the problem, its better than suddenly being stranded when the fuel pump does completely give up the ghost! :-)
Posted on Apr 27, 2009
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