Question about 2004 Kia Optima

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2004 KIA Optima LX timing belt/water pump

I have a question about a 2004 KIA Optima LX (2.7L V-6 engine), which is approaching its 60K maintenance schedule.

Do I need to replace the timing belt AND water pump, or can I just replace the timing belt?

And are maintenance and repair costs expensive for the 2004 Optima LX?

Can most mechanics/shops work on the KIA Optima?

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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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When you get in there you see to replace everything, you can, cause a month from now you don't won't to go back in there.

Posted on Dec 09, 2012


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2 Answers

My 2004 Kia optima shut off will driving. It cranks but doesn't want to start up. Can any body help me?

Well , it's probably missing one of three thing's , spark , fuel or compression ! Now you need to find out which one , pull a spark plug wire an hold a screw driver in the end of the plug wire an hold it close to ground an have someone crank the engine over ! don't hold the screw driver by the metal , you don't won't to get zapped . If there is spark spray some carburetor cleaner into the engine at some point ,vacuum hose ,air intake , the throttle plate would be best , there is usually a black tube going from the air filter box to the engine ! A couple of clamps holds it on , take it off an the engine side you should be able to see the throttle plate ! If it tries to start after spraying carb. cleaner in , you have a fuel delivery problem ! Fuel pump relay , fuel pump driver module or the fuel pump it self is bad ! Now if you have spark an sprayed carb. cleaner an it did not try to start you need to check engine compression ! The timing belt may have worn enough for it to jump time a little causing it to be out of time ! Back in the 80's the little cogs on the belt would wear off an the cam shaft wouldn't turn . Back then it was easy to check by taking the distributor cap off a see if it would turn while cranking the engine !

Apr 11, 2015 | 2004 Kia Optima

1 Answer

I bought used Optima 2004 with mileage around 120k, i'm worried about the timing belt. Should I change it now? When should we make second or third change after the 60k timing belt change.

to be on the safe side id change the belt every 55,000 to 65;000 miles make sure u change the belt tensioner as well they fail more than the belt

Feb 23, 2011 | 2004 Kia Optima

1 Answer

Can t find the diagram to put the fanbelt back on kia optima

The serpentine belt routing diagram for 2.4 liters 16V - G4JS engine code:
CS = Crankshaft
Gen = Alternator
T = Tensioner
AC = Air Conditioning
PAS = Power Assisted Steering
WP = Water Pump


Jan 24, 2011 | 2004 Kia Optima

1 Answer

Im installing a timing belt on my 2004 kia optima lx but everytime i get the timing right it cahnges on me what can i do to make sure the timing is right?

hi are you putting the cross head screw driver in the here are the instructions and a picture to help you...hope this helps

Oct 03, 2010 | 2004 Kia Optima

1 Answer

Thinking about a purchasing a 05 Kia Optima LX that have 75,000 mile - According to the carfax, the transmission was flushed in June of 2009, and the vehicle was traded in 4 months later...should i...

they are a good rig as long as the timing belt has been replaced.. they are due at 60k miles make sure if you have it done or it was already done the water pump and all timing belt pulleys are replaced..

Mar 11, 2010 | 2001 Kia Spectra

1 Answer

I have a 2004 Kia Optima v6 and I just had my timing belt, water pump and belts changed. I drove the car from the mechanics and when I took lunch about 3.5 hour froom picking it up I noticed that the...

it sounds like when the mechanic removed all the belt and water pump they have disturbed the front crank oil seal removing the crank pully this is very common accedent get them to check .

Oct 28, 2009 | 2004 Kia Optima

1 Answer

2004 kia optima lx, engine will turn over but will not start.

The fuel line is connected to fuel injector Rail by 2 nuts (10mm) (from your right) next to air hose to air filter. Disconnect fuel line and start engine to see whether gas shoots out of the line. If not, fuel pump is broken. Engine turns over but not start , it could be iginition lost (no sparks ). or timing belt got rip broken.

Go to auto Zones (auto part store) borrown ODB II scanner loaner and take it home, hook to ODBII connector that's located at the driver side to your right. Read the codes given by the scanner and go from there.

If a timing belt is broken, open timing belt cover to check on the belt.

If your belt is broken and crushed apiece, you may have to rebuild the whole engine as it's an interference belt.

Jul 05, 2009 | 2004 Kia Optima

2 Answers

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.

May 31, 2008 | 2001 Kia Optima

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