My 2004 kia optima lx 2.4l engine RPM gauge goes to zero mark, but there no problem starting the car. Please help me. Thanks.

SOURCE: 2004 KIA Optima LX timing belt/water pump

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

SOURCE: 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.

SOURCE: engine light on rpm gage not working

cylinder 1 misfire change spark plugs i just had that problem. you can still drive it it wont hurt the engine.

SOURCE: how do i remove the fron't door panal on a 2004

To 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.

Door won't open?

For those of you whose door is shut and you cannot open it, here is the trick that the Kia mechanic. 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.

Testimonial: "thank you very much."

SOURCE: yes i got a 2004 kia optima 2.4 L OHC how does

Hi,
I just did the timing belts on my 04' kia optima back in late november. I'm including a link that shows the timing diagram. First things first, to make it easiest, get all the timing marks lined up BEFORE you take off the belt. This is very important. You'll have to use a large socket wrench on the crankshaft to turn it manually until the marks line up (helps to have a second set of eyes for this).
As far as how to find the marks, for the camshafts up top, you're looking for a little V shaped nub on the casing. Should be directly above each camshaft sprocket. Then look for a notch in the camshaft sprocket. Line those up, and most of the rest should fall into place.
You will still need to check other marks. On the oil pump sprocket (just to the right of the crackshaft), there will be a V shaped notch on the sprocket and a V shaped mark on the engine housing. Verify they line up. Look for the same kind of marks on the crankshaft (which should be lined up anyway if the cams are lined up properly) and don't forget the balance shaft belt (seperate belt behind the crank sprocket that goes up to the left) which will also have similar marks. As a side note, my balance shaft belt was completely stripped, so I had to manually turn it until it lined up.
Once everything is lined up, you can remove the belt by removing the belt tensioner.
SAVE THE OLD BELT!!!
When you proceed to put the new belt on, you will notice that the two cam shafts have both lost their alignment slightly. They will have both turned in by one or two sprocket teeth. Unless you have a special tool, this is where the old belt comes in handy (as was my case). You will also need a second person.
Cut the old belt so it is one long strip. Your friend needs to have two large screw drivers ready (take this next advice with a grain of salt, much consideration and good judgement on your part). Start by having the new belt ready to be put on the the sprockets (your balance shaft belt should already be on as well). You should have a cotter pin or something holding the tensioner open so that when you're ready, you can pull the pin out and be ready. Using the old belt to pull the camshaft sprockets into proper position, have your friend use a screwdriver to hold them each in place (this is somewhat difficult, so like I said, have the new belt in a ready position to be quickly put on). Once your friend is holding them, start putting the belt on. Once the belt is in position release the tensioner.
Next, CHECK all of the timing marks to ensure that they're all still lined up. I say this, because my friend and I had to do this step twice to correct for an alignment issue we had with the oil pump.
If everything lines up, then you are ready to start putting it all back together. Good luck to you, and like I said, take the screwdriver and camshaft part with a grain of salt. It's what we did and it worked, but it's definitely not the recommended way to go about it.

Here's the link to a page on the website www.2carpros.com that relates specifically to your issue and has diagrams. It's what I used and it helped tremendously!

http://www.2carpros.com/questions/kia-optima-2004-kia-optima-help--3