Question about 2004 Hyundai Elantra
Light comes on ,stays on, disconnect the battery, touch terminals,light off,restart car light comes on,changed computer with used one,same result,no codes, read that one guy had same problem,changed computer light went off,and radio and clock worked. Is this possible?
Anything is possible with electronics. If you had the fault codes read first then you would have found out what put the light on in the first place. It is there to let you know that the CVPU has detected a problem that is detrimental to the engine and gear box and just to try to extinguish the light without fixing something is inviting disaster.. Once you have fixed the problem then use the code reader to reset the CPU to put the light out.
Posted on Dec 26, 2013
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Sound to me like some wires were either disturbed or crossed and are shorting out maybe when you replaced the alternator?Maybe have a look at the alternator connections again and make sure everything is correct and tight and that the new alternator is the right one for your car.Other than that its a case of tracing the wires from the alternator to the fusebox to find whats blowing your fuse.
Posted on Feb 17, 2009
Yes this can be done in place,remove timing belt side engine mounting,lower rear engine mount and front mount and engine can be moved over to leave room to get the plate bolts out that is in front of the timing cover,its awkward but can be done.
Posted on Feb 17, 2009
DTC P0734 is "4th gear incorrect ratio" - that's your torque converter 'LOCK UP Clutch" It's worn out (or you're using the wrong Trans Fluid required by Hyundai - SPIII OR Both). The P1624 is simply the Trans Control Unit (computer) communicating to the Engine Control Module (ECM computer) MIL - on request signal to ECM = asking it to turn on "Check Engine" light. MIL = Malfunction Indicator Lamp. When the torque converter 'lock up" clutch slips or doesn't engage, the trans automatically returns to 3rd gear and stays there (it's called 'fail safe' mode) until you cycle the ignition key, then everything resets until the malfunction occurs again.
You'll need to have an AT (Automatic Transaxel) tester hooked up to verify this. Hyundai has a Service Bulletin specifically for "gear incorrect ratio' codes. If when you changed the trans fluid, was it done at a Hyundai Service Center? If not, someone may have installed the wrong fluid.
Posted on Jun 02, 2009
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.
Posted on Nov 06, 2009
Tips for a great answer:
Dec 08, 2013 | Cars & Trucks
Feb 27, 2012 | 1994 Isuzu Pickup
Feb 09, 2012 | 2000 Oldsmobile Alero
Jun 21, 2011 | Dodge Caravan Cars & Trucks
Nov 14, 2010 | 2004 Hyundai Elantra
Jun 28, 2010 | 2004 Hyundai Elantra
Apr 07, 2009 | 2008 Hyundai Elantra
Mar 28, 2009 | Hyundai Motor 2003 Elantra
Dec 29, 2008 | 2006 Pontiac G6
Dec 27, 2015 | 2004 Hyundai Elantra
84 people viewed this question
Usually answered in minutes!