Top 10 2001 Hyundai Elantra Questions & Answers

See fig below



FUEL FILTER REPLACEMENT
1. Reduce the internal pressure of the fuel pipes and hoses by completing the following operations. a. Disconnect the fuel pump harness after removing the rear seat cushion. b. Start the engine and after it stalls, turn the ignition switch OFF. c. Disconnect the battery negative (-) terminal. d. Connect the fuel pump harness connector. 2. Remove the bolt connecting the fuel line with the fuel filter. Cover with a shop towel to avoid gasoline from splashing. 3. Remove the fuel filter mounting bolt, then remove the fuel filter from the fuel filter clamp. 4. After replacing the fuel filter, check for fuel leaks

no filter,has a bolt on the botton of transmittion oil pan,unscrew drain oil for about 10 minutes put back the plug and refill from the check oil stick ciao

Danny,

Catalytic Converter Failure is a common cause of a P0420 Code. 1.) I would give a few calls to some muffler shops and get a thorough exhaust inspection done. As a leaking/damaged Exhaust Manifold, Catalytic Converter, or exhaust pipe could be some of the culprits as well. If it were any of those other items your car would give you a different OBD Code. Item #2.) This is not common with a P0420 Code. With the P0420 code you should have no driveability issues. (not to say that you wouldnt in an extreme rarety) Item #3.) Again this would flag an entirely different code such as P0455 (Large Evap Emission Leak) Item#4.) Engine Oil would not even set a code. I hope this helps you out, and thank you for using FixYa!

Sincerely,

JC

weeeeiiirrdddd. i have a 2001 hyundia elentra gls, and my third cylinder is misfiring as well. my car also revs constantly on idle and in between shifting. it will flutter between 2-3000 or it will just stay at 5000. i replaced my plugs and wires to no fix with my cylinder. autozone also told me that it sounds like my throttle position sensor needs replaced, but every part they try to sell me will not fit and they swear up and down this is the right part...

I just came from an Autozone, and then spoke with 2 Hyundai dealership service departments and they all three stated the P0113 code is the Intake Air Temperature sensor (IAT, also referred to as the Mass Air Pressure - MAP - sensor) on the engine, not an O2 sensor found in the exhaust system.

If your airbag light comes on it means its not working. Some of the newer airbag systems have weight sensors under the seats and anything lodged under them can disable the passenger airbag and possibly cause the light to go on. If there are no other symptoms, and nothing impeding the airbags then the car thinks the airbag wont work. If you are concerned for your son's safety, take it to a qualified mechanic and have them check/replace your airbag. Good Luck!

I am having the exact same problem with my 2001 Hyundai Elantra. I was told that the engine code that comes up when the sensor is on is called "Absolute Pressure In The Manifold". I was told by a "Hyundai Specialist" that when that code comes up it usually means that the seal on the manifold is Fuct. When my mechanic checked that out for me he had noticed that my manifold had 4 cracks in it(can varify cause he showed me). He replaced the manifold and gasket. The car ran fine for about 2-3 days and since then the problem has since come back and my check engine light will no longer go on/off it only stays on. Because of the check engine light always staying on I have noticed that on many occasions my car will hiccup many times in a row. The only way to stop the hiccup I have noticed is to take my foot right of the gas for approx. 2-3 sec then car will continue without hiccup(till it happends all over again). All in all I have been having this problem now for approx. 1 year and if there is somehow someway it could be repaired I would appretiate it.

call a locksmith / brake the window /get the other set of keys /

Here's an image of its location.

Dear fellow Elantranians,
I am an original owner of a 2002 Elantra (w/anti-theft module/ETACS), and have wrestled with the same problem for months: remote will unlock, but not lock doors.
The answer to the problem, at least in my case, was a door lock relay (Part #95250-2D000) located behind the center dash, to the right and below the radio and heater/AC controls (removal and replacement reasonably easy). A simple removal of one bolt and a wire connector, and the little devil is exorcised. It's been working without a hitch for more than two weeks, and expect it to continue for eleven years as the original relay did. I purchased this relay from a local salvage yard for $14.00, but a Hyundai dealership (jimellishyundaiparts.com), will sell it to you for $36.00.
Respectfully,
Lucky Elantanian