Top 20 2004 Hyundai Elantra - Page 7 Questions & Answers

This is pretty cut-and-dry. If the Low beam headlamp fuse keeps burning out, then you must diagnose the low beam headlamp circuits for a short to ground. If replacing the fuse makes both of the low beam headamps work for a while, then the problem is intermittent (which makes it considerably harder to find). I did do a Technical Service Bulletin search and found nothing that pertains to the headlamp circuits, so there is no "known" problem that regularly causes this problem in this particular model. You will simply have to trace the circuits to locate the cause.However, it deserves mention that I have seen the headlamp bulbs themselves cause intermittent problems. Sometimes the wires inside the bulb can touch when the bulb gets really hot. The short then goes away as soon as the bulb has cooled for a few minutes. You replace the fuse and everything seems to be OK until the bulb gets hot again and "POOF" there goes another fuse! You can usually find this by turning the lights on and "thumping" the headlamp assembly with your fist. If this makes the fuse blow and the lights go out, then the bulb is usually the problem.

Diagnostic Test Code (DTC) P0501 "Vehicle Speed Sensor Range/Performance" DESCRIPTION The Wheel Speed Sensor (WSS) generates a waveform with a frequency according to the speed of the vehicle. The signal generated by the WSS informs the ECM not only if the vehicle speed is low or high but also is stopped the vehicle or not. The ECM uses this signal to control the fuel injection, ignition timing, transmission/transaxle shift scheduling and torque converter clutch scheduling. Also the WSS signal is used to detect rough road driving condition.Whenever Your OBD readiness monitors cannot complete it is because there is a problem that is affecting fuel mixture, ignition timing, or any other fault that can affect the level of tailpipe emissions. Once these faults are repaired, then the codes must be ereased so that the monitors can run and "re-test" the system to check for the same, or any other faults. The goal is for all the monitors to run and change to "complete" without any fault codes present.In your case, the wheel speed sensor fault needs to be diagnosed and repaired so that the monitors will complete. Also note that one incomplete monitor can prevent other monitors from running. In your case, the catalyst monitor cannot run because the O2 sensor monitor is not complete. The catalyst monitor can only run AFTER the O2 sensors have received a "clean bill of health" from the O2 sensor monitor. The wheel speed sensor problem is keeping the O2 sensors from being tested.....So the wheel speed sensor problem is pretty much causing the whole thing.Here's the kicker...If the vehicle has been driven in this condition for a period of time, there may be damage to the catalytic converters. The computer does not know this yet because the catalyst monitor cannot run. So it is possible that you can fix the wheel speed sensor thing, the O2 sensor monitors will complete, then when the catalyst monitor runs it could set a "catalyst efficiency" code. Then you will have to replace your catalytic converter to fix that. I'm not saying that this WILL happen on your vehicle, I am just saying that it CAN happen so you will not be confused IF it DOES happen. I see this all the time, and I have had customers accuse me of doing something to their car so I could sell them a high-dollar catalytic converter. This is simply not the case...I had no way of knowing that the converter had a problem because when I first received the car, the catalyst monitor was incomplete and there was not catalyst code present at the time.So the only way to do this is to correct ALL fault codes one at a time until all monitors are complete and no fault codes are present.

under the car

Go to www.hmaservice.com and register your vehicle by VIN #.. you'll then have access to wiring diagrams, shop & owner manuals, service bulletins, campaigns, illustrations and procedures, etc

replace the hose.or use stop leak shortterm.

Pl. make the battery terminals firmly tight.Hope this might help.

What fault code is being set?

04 elantra 2.0 L doesnt have 2 cams?

The information below was complied by me, it explains what causes the check engine light to come on and the process of finding the cause.

When the Check Engine light (or Service Engine Soon) is turned on, the systems computer control unit (called the PCM) has sensed a fault in the electronic controls of the engine and/or the emission system. When this happens you will seldom feel the car engine run any different. There are about 200 possible system faults (the gas cap is just one of them) that turn the Check Engine light on, to know what has developed a problem you must have the system tested, this is called an OBD2 fault code test, Kragen/Oriley and Autozone parts stores (USA only) do this testing for free.

The starter motor will engage the gear in the transmission bell housing to rotate the engine, so it will be mounted on the side of the transmission. The illustration shows the XG-300 and XG-350.

Hello mikew564.The first diagnosis was number 2 or 3 cylinder not firing. Once you changed the coil, the check engine light went off. When the light came back on again, did you get it diagnosed again to find out if the problem was the same?... 2 or 3 cylinder not firing????

First of all, there is NO extra wire/ground on the coil/ignition wiring (see images below). The spark plugs and ignition plug wiring can be checked for arcing, corrosion, resistance and can be checked for cracks in the insulators or worn electrodes (and spark gap) by a competent mechanic.
If you are having the same issue (2 - 3 misfire), there are several techniques for eliminating the plug wires or spark plugs. Spray water on the plug wires to see if they are arcing. Swap plugs from cylinders 2 & 3 with cylinders 1 & 4. If you still have a 2-3 misfire, check/inspect/examine the coil connector pins & coil harness to the coil(s) themselves.

Hi,
now a worn or damaged outboard CV joint would make a clicking noise while turning. when the vehicle pulls to one side during braking it could be a number of problems.
1. incorrect tire pressure
2. front end out of line
3. restricted brake lines or hoses
4. drum brake or caliper assembly are malfunctioning
5.loose suspension parts
6. loose calipers
7. excessive wear of brake shoe or pad material or disc/drum on one side

i myself own a 2006 hyundai and just did a complete all 4 wheel brake job including rotors.......saved a bundle, special tool for the back brakes for calipers...........also just bought a 2012 elantra.............love it.
good luck,
frank

Easy access up front near the coolant recovery reseviore
ILLUSTRATION:

use a tester to tesr where light goes in, if no power still replace bulb insert [ where bulb screws in or plugs] 99 percent of the time just go to a auto parts place and buy the correct end cut the wire on old one reconnect and turn it on, cheap item

It depends on what you are looking for or your needs. If the cost of maintaining your current car is increasing then it may need replacing. Other than that another car may provide you with better use such as space or safety concerns.

P0140 Code...Its the rear oxygen sensor is mounted on the rear side of the Catalytic Converter or in the rear exhaust pipe, which detects the catalyst efficiency.....Here is a pic.....

If the blower motor only works on high speed then the blower motor resistor has burnt out on the lower settings, and will only send power on the high setting because it is straight battery power.

Are you check fuses? If they are OK, could sound like a electrical ground problem. Recently make some job there? If remote isnt work coudl be re-synchoronized issue.

Keep us updated.

If your transmission still functions fine-you should be good. The number one cause of worn front wheel drive axle wear is from worn transmission and motor mounts. As they wear they change the position of the axle, increasing wear. I would swap out the axle and have the mounts checked.

Check tire pressure, air intake filter, clean the throttle body and induction system, could be time for a tune up. Also check fuel filter. I would try a tune up first. Wouldn't hurt to service the tranny also. Good Luck