2003 Hyundai Accent - Page 9 - Answered Questions & Fixed issues

the sensors are under the seat

you should be able to relieve the fuel pressure a couple of ways. the fuel pressure can be relieved by pushing the schrader valve at the end of the fuel rail. just follow the fuel line to the intake manifold and that will lead you to the fuel rail. the valve should be at either end of the fuel rail. if you cant find it just let the car sit for about an hour. this will let the fuel pressure bleed down a bit then just remove the fuel line wherever you need to. you will probably still get a little bit of fuel on you but it won't be that bad.

dont think this vehicle has a fuel filter ,only a gauze inside the fuel tank on teh bottom of the sender/pump unit ,best advice i can give is that if it runs ok leave well alone you should never need to clean it out as modern petrol pumps in garages have micronic filters inside the delivery pumps .

set plug gaps to 25th to start with ,be surprissed how many never get set on a service

It seems the problem with the wiring diagram, Please check the wire harness & body earth.

engine control system is "OBD II " .Flash is FAULTS occurring . Prob random miss codes( p0300s etc. thats the tune up .The rust story ? sounds like rust @ sensor makes them not want to repair for fear of something else breaking. Keep driving it and you are gonna wreck the cat converter.More $. A LOT more $

it sounds like a glow plug issue. perhaps a bad glow plug relay. I would think its the relay if the problem comes and goes. If it were a bad glow plug the problem would be constant. check for volts at the glow plugs next time the car acts up. If you find no volts, tap on the glow plug relay next time you turn the key on. This may cause it to activate. if so then replace relay

The a/c system is designed to cycle on and off when in the defrost mode. This helps pull moisture out of the air to help clear your windows

depends on climate ,even 20/50 ok

Description of fault code P0734:

This code is set if the value of input shaft speed is not equal to the value of the output shaft, when multiplied by the 4th gear ratio, while the transaxle is engaged in 4th gear. This malfunction is mainly caused by mechanical troubles such as control valve sticking or solenoid valve malfuctioning rather than an electrical issue.

From experience (sorry) you will end up replacing the transmission. This code usually indicates an internal mechanical failure.

This one ill be a good candidate for a block test. This is 1 telltale sign of a blown head gasket. Read the article I sent a link to and it will walk you through a quick process that will point you in the right direction.

You may have EVAP System issues,like a bad fuel tank
vent valve.
You pretty much need professional help,from someone
who can smoke test and use a scan tool to diagnose

HAVE TO INSTALL A SCANNER AN CHECK SYSTEM AN CODES AN VALUES,YOU MAY HAVE A BAD ECM MODULE

That sounds more like a problem with the nozzle, check quite a few different pumps. If it keeps happening at multiple locations, might have someone check to see if your fuel tank is misshapen.

It's probably faulty wiring, when you get into an accident it messes with everything, they're probably disconnected and not getting any power. Try checking them or getting a mechanic to check em for you.

hope it helps

Possible that the wiring harness to the rear is having a short from the hatch door switch to the brake light assembly . It can also be a wrong connections if there was some work done on this area that needed the harness to be rewired. So check this out, remove and reconnect.
use a multimeter to check the drain of the battery to confirm the short when the line is detached.
Please check my link for tips on battery drain.

http://www.fixya.com/cars/r5824824-draining_car_battery_charge

Do a spark plug condition check after running it and see what the plug condition indicates. Check to make sure the wires are well separated, and make sure the spark is not jumping from the wire to a ground (caused by a bad wire--plug condition would probably be wet from not firing). You may have a bad plug or wire even though it is new (it happens).

it should still be under warranty. is the dealer refusing to honor the warranty?

Generally there is an access area on the reverse side of the trunk lid, or the lens of the light itself can be removed by taking out some screws. I looked in your vehicle's service manual and it doesn't even list that light in the do-it-yourself area. You could also just call the dealership service department and ask.

Here's the link if you want to check the manual out yourself.

http://pdfservicemanual.com/automotive/2003-hyundai-accent-owners-manual

Hope this helps.

try changing the bulb as a first step,its twin fillament.