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Posted on Jan 02, 2017
This should show up easily on the ECU diagnostics computer at a mercedes dealership. Basically your fuel mixture is way too rich causing your car to be heavy on gas, have a raw gasoline smell, and not run right. Something like this can be caused by a defective oxygen sensor (but that usually produces a check engine light) or it might even be a defective ECU. There is really not way of knowing for sure until you do a proper diagnostics where they hook up your exhaust at the same time and do an emmission test. In most cases it's some sensor that needs replacing.
Posted on Aug 28, 2008
does not sound good. how many miles on engine? knocking may be piston slap if it goes away hot. may be engine replacement time.
Posted on Sep 19, 2009
Testimonial: "thanks for help "
SOURCE: gas smell in exhaust
you have either a blown head gasket or cracked head. The white smoke is coolant passing through the engine and exhaust. The gas smell is from compression leaking past the gasket or head, pushing fuel vapor into the air.
Posted on Dec 01, 2009
I'm sorry to hear about your situation. I may be able to offer more assistance than what's below if you can answer the few questions I have in the next paragraph.
Presumably, you somehow got the car started after pumping the gas two to three times. Let's start with that. What was it necessary for you to do to get the car started? When you were able to get it started, did it crank normally, slowly, or quickly? Does the problem only occur after waits of a certain time after driving the car? If you can think of anything all no start the events have in common (temp, humidity, whatever) please add that as well.
First, I'll say that I find the weak starter diagnosis dubious. Hyundai has very few starter problems. but still it's possible.
If you've got the original battery in your car, I'd be very suspicious of the battery. How did you conclude the battery was good? If it's new, that's a pretty good (although not perfect) indicator. On the other hand, if it was based on a handheld computer tester, I'll just say that they're not always accurate. If you're not sure if you've got the original battery in your car, here's what it will look like: it'll have a black top and white case (possibly hidden inside a black plastic shield to keep the heat away), and will have "Solite" written on the white portion in big red letters. The warranty on the original battery is 3 years-- free replacement after two years; you'll need to pay 75% of the parts between two and three years. It's likely you're over 3 years-- it'll depend on the actual in-service date. If so, and you need a battery, you'll be paying for the repairs wherever you have them done.
The alternator is another possibility, as are some other less common electrical issues. I'd expect that the dealer did a system test and found nothing wrong. Again, if they used a handheld electronic tester-- all Hyundai dealers have one of these; it's a required special tool-- it'll sometimes show a weak battery as good or vice versa.
Another possibility is your your ignition timing has a problem or your fuel timer has a problem
Here's what I'd recommend:
If after reading the above, you think it's the battery, just put one in. They're relatively inexpensive and installation is easy-- just make sure you don't hook it up backward! If the problem happens again, call roadside and have it towed to the dealer.
If you're still doubtful about the battery, put a set of jumper cables in the car for emergencies when you need to get it started right away, and, if you can, call roadside assistance when it happens again.
Finally u can narrow down your problem but still u could not narrow down your problem speak with the service manager of the dealer. Tell him how disturbing and disconcerting it is that your car will sometimes not start but they've been unable to find a problem. If they'd like to check it again, offer to leave it there a few days if they think it'll help them.
Posted on May 07, 2010
Testimonial: "Thank You, I haven't tried the battery yet. Next on my list. Thanks!"
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