Question about 2004 Kia Optima
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Posted on Jan 02, 2017
I was driving to work one day and my car wouldn't go faster than 40 miles per hour. I took it to a friend who was a mechanic and he said it could be the fuel pump. I went to Auto Zone and purchased a fuel pump Part Number: E8335 for $69.99 plus tax. When I went to replace it I saw it was already replaced with a Auto Zone fuel pump before. My friend put the new one in but it didn't help. I took it to the dealership and they did a pressure test on the fuel line. I was told it should be 45-47 pounds of pressure and I was only getting 23 pounds of pressure. I was told it was better to replace the Fuel Pump Module Assembly rather than just the fuel pump. I was told by the service manager that it was $300.00 plus tax for the Fuel Pump Module Assembly and when I checked with the parts department I was told the O.E.M. fuel pump was $230.00 plus tax. I thought for $70 more to replace the whole assembly was worth it since my car had 127,000 miles. My friend who is a mechanic agreed. When the part came in I went to pick it up I was told it was $344.00 plus tax for the Fuel Pump Module Assembly. They honored the service managers price of $300.00 plus tax. The part number through the dealership is 31110-38260. Now this is for Optima's Built to 09/01/2004. My car was built 05/03. Optima's Built from 09/02/2004 require a different part number. You can either look inside the drivers door for the build date or give the last 8 digits of the VIN number to the dealership and they can tell you when it was made. You can also just look at the top of the Fuel Pump Module Assembly located right behind the rear seat folded down under the carpet. If it has 2 electrical connections it takes the Fuel Pump Module Assembly Built to 09/01/2004. If it has only 1 electrical connection it takes the Fuel Pump Module Assembly Built from 09/02/2004. If you choose to go with Auto Zone they carry both Airtex Master/Fuel Pump For your 2004 Kia Optima 2.4L MFI DOHC 4cyl Price: $233.99. Remember mine already had an Auto Zone fuel pump which quit working on me and when I replaced it with another Auto Zone fuel pump it didn't help. Now possibly my fuel pump was fine and replacing the whole Fuel Pump Module Assembly worked because there was something wrong with the fuel pump sending unit. Neither the dealership or Auto Zone sell the fuel pump sending unit by itself. If you choose to go with Auto Zone here is the link for the parts. Keep in mind this is for my zip code here in Tennessee. Your price may be different in your area. These prices were as of 9/18/2011. I hope this helps you out. I am always getting advice from this site I figured it was time to give back. The first 2 picture are for cars Built From 09/2/2004 the last 2 pictures are for cars Built To 09/1/2004 http://www.autozone.com/autozone/parts/2004-Kia-Optima/Fuel-Pump/_/N-jlojxZ8vcz2
Posted on Sep 19, 2011
I'm not sure on the cost but I replaced mine a few weeks ago and man o man what a job!!! I had to take apart the wheel assembly on the pass side.....pull the axle...jack the engine. 1st time 10 hrs.....2nd time thanx to a fualty replacement alt. 6 hrs. Good luck
Posted on Feb 22, 2009
The thing is your doing the timing belt the water pump is right their with it . it should cost you much more at all besides the cost of the water pump. When doing a timing belt I have a rule that I go by The timing belt/seals =cam , crank , any pulley & tensioner & water pump all get replaced at the same time. I did a t-belt on a Audi A-8 very complex whole front of car has to come off as well, he didnt want to do w-pump & thermostat his thermostat was their as well not even a month later the water pump gave out he had to pay double the price because he didnt want to do it when I had it apart the first time. And make sure mechanic is ase certified . good luck
Posted on Jul 02, 2009
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