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2004 Kia Optima, driver side door lock problem. Have to roll down driver's side window and place key inside lock in order to open door. Other three door locks work fine.

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  • denimdizzy
    denimdizzy Nov 29, 2012

    THANK YOU THANK YOU THANK YOU, I got my van door open and thought I was going to have to pay to get it fixed GOD BLESS YOU for letting us know how to fix this problem with my 2004 kia van door so excited!!

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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  • 1 Answer

SOURCE: Electronic locks/ stuck door

DON'T LET THEM BREAK YOUR DOOR PANEL!!!!!

For those of you whose door is shut and you cannot open it, here is the trick that the Kia mechanic taught us: Insert the key into the door lock. In one quick motion, simultaneously turn the key to the unlock position AND pull the handle. It took us several attempts to finally get it to work.

Once the door is open, the check the diagnosis and repair instructions below.


*****

A couple months ago, our 2004 Kia Optima started exhibiting the same symptoms you describe: Door lock mechanism feels jammed, actuators automatically relock, etc.

We took the car to the local Kia dealership where we had purchased the car new, and the shop told us that it was a faulty door lock actuator. The mechanic did not open the door, but said that this was a common problem. They estimated $200 plus labor to repair.

This weekend, I decided to open the door and look for myself. What I found is that the actuator was fine. The fault was with the latch mechanism, called "door checker" in the Kia service manual. Not the lock... the latch; the actual part that latches onto the striker when the door is closed.

Here is my walk-through of the diagnosis and repair:

To determine the fault, I first removed the door panel. Remove 1 screw in the grab handle pocket, 1 behind the door open lever, and 2 screws at the forward edge, the bottom edge, and the rear edge. Remove the small window-corner speaker if equipped. Then lift off the door panel. Don't lift too far, there are wires to disconnect.

Once the door panel was removed, I removed the exterior door handle. Two bolts on the inside of the door secure it. Use 10mm socket to remove them. Then remove the connecting linkages by flipping the plastic catches on each to the side. This should allow you to pop the linkage from the socket. The heavy linkage is a little harder, as it has a locking groove. You may need a jewelers screwdriver or dental picks to open the plastic socket a little. Be very careful not to get forceful or you risk breaking the plastic catch. The actual lock mechanism turns 1/8 turn and slides out of the handle assembly. Set the handle aside.

Now disconnect the linkage from the actuator, again by flipping the plastic catch to one side and slipping the linkage from the socket.

Finally, disconnect the linkage that goes to the interior lock above the door-open handle.

With these linkages disconnected and the door handle out, remove the plastic cover on the latch mechanism. You should now be able to peer in and work the lock and opening levers independently and find the fault.

On my particular latch, the plastic bits (yes, they used plastic) had worn and become loose. This allowed the rotating part of the latch to rotate too far, which in turn caused a bind when you try to unlock the mechanism. The security system senses that the latch is not properly unlocked, causing the actuator to immediately engage and relock the doors.

If you confirm that this is your problem, then remove the three screws that hold the mechanism in place and replace the mechanism. I obtained mine from a salvage yard for $30.

Total time to diagnose and repair was about 3 hours - but you now will have an advantage in knowing what you're looking for!

Posted on Sep 16, 2008

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  • 651 Answers

SOURCE: gas cap release button is broken on 2004 kia optima

if you can some how manage to get it opened, spray some lubracant on the button inside the door. if not you'll need to replace the release cable.

Posted on Dec 01, 2008

robshow
  • 367 Answers

SOURCE: Kia Optima 2004

This could be multiple issues.
1.) timing belt
2.) Crank sensor
3.) Fuel pump (although usually they do not just die they get weak)

Check these let me know.

Posted on Jan 19, 2009

  • 334 Answers

SOURCE: Driver side door will not unlock with key or with keyless entry

frist check your wires and make shore you have power. if your lock still dont work its the power lock motor in that door ok . have a nice day

Posted on Mar 29, 2009

co7196
  • 3433 Answers

SOURCE: Electronic locks/ stuck door

Your door latching mechanism is loose or defective. or maybe Christines' deendent. Spookuy huh?

Posted on May 30, 2009

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Electronic locks/ stuck door


Your door latching mechanism is loose or defective. or maybe Christines' deendent. Spookuy huh?

May 30, 2009 | 2004 Kia Optima

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He probably pulled a rod off inside your door when he was probing. Or it may have gotten bent. You will be able to see what happened if you take your panel off.
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Driver side door will not unlock with key or with keyless entry


frist check your wires and make shore you have power. if your lock still dont work its the power lock motor in that door ok . have a nice day

Mar 29, 2009 | 2004 Kia Optima

6 Answers

Electronic locks/ stuck door


DON'T LET THEM BREAK YOUR DOOR PANEL!!!!!

For those of you whose door is shut and you cannot open it, here is the trick that the Kia mechanic taught us: Insert the key into the door lock. In one quick motion, simultaneously turn the key to the unlock position AND pull the handle. It took us several attempts to finally get it to work.

Once the door is open, the check the diagnosis and repair instructions below.


*****

A couple months ago, our 2004 Kia Optima started exhibiting the same symptoms you describe: Door lock mechanism feels jammed, actuators automatically relock, etc.

We took the car to the local Kia dealership where we had purchased the car new, and the shop told us that it was a faulty door lock actuator. The mechanic did not open the door, but said that this was a common problem. They estimated $200 plus labor to repair.

This weekend, I decided to open the door and look for myself. What I found is that the actuator was fine. The fault was with the latch mechanism, called "door checker" in the Kia service manual. Not the lock... the latch; the actual part that latches onto the striker when the door is closed.

Here is my walk-through of the diagnosis and repair:

To determine the fault, I first removed the door panel. Remove 1 screw in the grab handle pocket, 1 behind the door open lever, and 2 screws at the forward edge, the bottom edge, and the rear edge. Remove the small window-corner speaker if equipped. Then lift off the door panel. Don't lift too far, there are wires to disconnect.

Once the door panel was removed, I removed the exterior door handle. Two bolts on the inside of the door secure it. Use 10mm socket to remove them. Then remove the connecting linkages by flipping the plastic catches on each to the side. This should allow you to pop the linkage from the socket. The heavy linkage is a little harder, as it has a locking groove. You may need a jewelers screwdriver or dental picks to open the plastic socket a little. Be very careful not to get forceful or you risk breaking the plastic catch. The actual lock mechanism turns 1/8 turn and slides out of the handle assembly. Set the handle aside.

Now disconnect the linkage from the actuator, again by flipping the plastic catch to one side and slipping the linkage from the socket.

Finally, disconnect the linkage that goes to the interior lock above the door-open handle.

With these linkages disconnected and the door handle out, remove the plastic cover on the latch mechanism. You should now be able to peer in and work the lock and opening levers independently and find the fault.

On my particular latch, the plastic bits (yes, they used plastic) had worn and become loose. This allowed the rotating part of the latch to rotate too far, which in turn caused a bind when you try to unlock the mechanism. The security system senses that the latch is not properly unlocked, causing the actuator to immediately engage and relock the doors.

If you confirm that this is your problem, then remove the three screws that hold the mechanism in place and replace the mechanism. I obtained mine from a salvage yard for $30.

Total time to diagnose and repair was about 3 hours - but you now will have an advantage in knowing what you're looking for!

Jul 12, 2008 | 2004 Kia Optima

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