Question about 2001 Hyundai Elantra
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Posted on Jan 02, 2017
With modern cars it is bad when the engine light just comes on and the vehicle does something very different. It should not be driven. If the car is smelling of fuel and jerking it is because it's miss-firing (i.e. one or more cylinder is not getting spark but is getting fuel). This can be anything from electrical/electronic to mechanical like a broken rotor cap (as an example). The good thing, is that the light is coming on and a mechanic can check the ECU for error codes. Alternatively, you can buy or barrow one your self and check it out on your own (I think even certain auto-part stores will check it for you as long as you get in the zone;). 1996 is a good year for that since that is when OBDII started and all vehicles started using the same port to check for issues.
Posted on Feb 17, 2009
Sounds like it's misfiring. You've most likely got a fouled sparkplug(s). An engine that's not running on all cylinders will vibrate badly and get worse the faster you go. The AC will make the engine work harder therefore, increase the vibration. Decreased fuel economy is also a byproduct of a poor tuned engine.
If the plugs are good and you don't notice worsening fuel economy, the other main cause of your issue is a bad motor mount. This is noticeable when putting the car in gear you will feel a bump or "thunk". I'd definitely check the plugs/wires first. Best of luck with your problem.
Posted on May 14, 2009
Soujnds like your throttle positioning sensor is going bad. This is the sort of thing that happens before they go completely out.
Posted on May 23, 2009
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