20 Most Recent 2004 Hyundai Elantra Questions & Answers

Check and make sure that your power steering fluid is topped off. Could possibly problems with your power steering pump. Mine does the same and the fluid is full. I just keep an eye/ear on it. If it continues to get worse than it could be the pump going out. If the fluid is allowed to get too low, it could possibly get air in it affecting both the "feel" of the steering and making a noise.

In the link. Also click the images tab. https://www.google.com/search?q=pinout+diagram+for+my+2004+Hyundai+%22Elantra%22+ECM ..

Hi, fusible links in older car are most likely installed very close to the battery. Click this article for more details: https://www.easybom.com/blog/a/unknown-facts-on-fusible-links

replace the battery .(has someone in the family/friends got a similar battery you can "borrow"to check before you buy.worth asking???

Hmmm.... rear strut bushings.

shift lock located on your shifter by sticking a key or an small object into the hole to release the lock; Only used when need to shift out of gear if the battery is dead OR the brake sereniod switch goes bad and wont release the lock to the shifter when applying pressure to brake peddle to allow you to move shifter into gear. also state in owners manuel.

For Hyundai Car 1999-05 - Intake Air Temperature (IAT) Sensor Location (check several options):

1.- The IAT sensor is located against the firewall to the left side of the engine. It is combined with the Manifold Absolute Pressure (MAP) sensor.

2.- This sensor is located in the air intake plenum assembly. On some vehicles this sensor is combined with the MAP/MAF sensor.

3.- The IAT sensor is located in the air plenum assembly. On some vehicles it is combined with the MAF sensor.

4.- This sensor is located in the air intake plenum assembly. On some vehicles this sensor is combined with the MAP/MAF sensor.

5.- This sensor is located in the air intake plenum assembly. It is combined with the Manifold Absolute Pressure (AFS) sensor.

6.- This sensor is located in the air intake plenum assembly. It is combined with the Manifold Absolute Pressure (AFS) sensor.


In the next graphic, check the position 2...



FIG : Underhood sensor locations-Elantra 2004-2005 2.0L engine


Hope this help (remember comment and rated this) TY for using Fixya.

I believe it's 15 amp fuse listed on the interior fuse panel "Room LP" lower right hand corner of the panel .The panel is located on the drivers side behind the little storage compartment 7 o'clock from the steering wheel.

Fix your car right away by clicking the link I attached https://www.reliable-store.com/products/2004-hyundai-elantra-repair-manual

Call dealer or radio manufacturer.

The head gasket is allowing compression gas into the water jacket. Did you have the head ground flat before installing it on the head gasket?. Was the old head gasket completely removed from the block? It doesn't take much if a speck of old gasket remains on the block.

doubt it's the switch ,but you never know until testing is done . Do you know what that is ? Automotive systems electrical testing , view a wiring diagram too see what all is involved in said circuit ,an using a DVOM - digital volt ohm meter to test B+ voltage an ground ? Looking at the wiring diagram for the blower motor circuit for your vehicle i see a blower motor relay , a blower motor resistor pack an the blower motor switch . The switch is just a path to ground . If it doesn't work on high speed i would suspect the blower motor relay . View the wiring diagram here http://www.bbbind.com/free_tsb.html Enter your vehicle information , year , make , model and engine size. Under system click on HVAC ,then under subsystem HVAC controls will come up on it's own . Click the search button then the blue link . Buy a cheap volt meter an test the circuit . That is after watching these videos . Electric Testing Techniques You Need to Know The Trainer 32 How To Read An Automotive Block Wiring Diagram Learn how to test an save money , it's easy ! Is there B+ voltage at the relay .Also check out how a relay work's an how to test .

Obviously, it's an electrical problem. Electrical problems are many, yet they elude us when determing the CAUSE. You describe an INTERMITTENT OVERLOAD on the circuit... the challenge here is to determine WHICH circuit!

If you're not an electrician, then let an ELECTRICIAN troubleshoot it.

I, as an ELECTRICIAN, could teach you what you need to know to troubleshoot/diagnose electrical issues like this. However, this is not the forum for it. Have an electrician diagnose it. BEST ADVICE I CAN GIVE.

Sounds like a misfire (bad ignition coils)
You need to get it scanned for trouble codes.

You got ripped off by the mechanic. A good mechanic can pinpoint the problem by using a scan tool. Take vehicle to autozone or similar and have it scanned for codes this will give you a idea what is wrong. I believe the problem is exhaust related because of the blinking light.