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post #1 of 31 (permalink) Old 03-24-2019, 10:44 AM Thread Starter
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Question Questions and Help Needed

Hi

I posted this last night and for some reason it got deleted, I have no idea why, so I'm going to try posting again, and if I'm doing something wrong please let me know.

A couple of days ago my sister got a 2003 Kia Sorento EX, it has a few problems. I'll list them really quick.

1) The Harmonic Balancer wobbles.
2) The engine misfires and there are a couple of misfire codes for cylinder 1 and 2 and a P0300 code Random Misfire Detected.
3) Both valve cover gadgets leak towards the back of the engine.
4) There is a P0443 code for the EVAP Purge Valve


I decided to tackle the Harmonic balancer first, I figured it ether had a bent bolt or the balancer it self was bad. So I looked up how to take that off and found out there was a recall on the bolt and I would need to get a new updated one, so I did. The guy at the Kia parts department also informed me that the bolt is a stretch type bolt and can only be used once, nice to know. I took the old bolt off and it did not seem to be bent, so I pulled the harmonic balancer off which was a little stubborn in coming off. I inspected it and it seemed to be in good condition. There was some rust build up on the back where the balancer connects to the end of the crank shaft and thought maybe that was causing the wobble, so I cleaned all of the rust off the end of the crank shaft and the back of the balancer and then bolted it back up using the old bolt just to check to see if the wobble was gone, "it wasn't". I tried several times thinking I just did not put it on right, I even tried the new bolt "but not torqued down" and it still wobbles, something just is not right. The biggest indicator the something is amiss is that both the bolt and the balancer are wobbling, I put just the bolt in and it spins true by its self, but as soon as I put the balancer back on the bolt goes sideways again. I cant seem to get the balancer to sit flat on the end of the crank shaft. The only thing I can think of that might be causing this is that on the back of the balancer there is a indentation in the shape of the end of the crank shaft, I have looked at other balancers online and can not see that indentation on any of them. Do you guys think that could be my problem, I do have a new balancer coming in on Tuesday. I'm on hold for this part of the repair until then.


I Think I fixed the EVAP Purge Valve problem, the last person to work on this vehicle tried jerry rigging the wires going into the Purge Valve, the socket that plugs into the Purge Valve is missing and to fix the problem they put butt connectors on the ends of the wires that still had the original metal prongs on them and then they stuck the butt connectors into the open socket on the Purge Valve and then electrical taped them in place.


Here is a question for you guys. This is about the crank shaft bolt, will this bolt be a ongoing problem I will have to worry about after I get it installed properly? And if so do you think my sister would be better of getting rid of it? I have heard lots of bad things about this being a problem, but I'm thinking that most of what I have heard involved people reusing there old bolt when they should have replaced it with a new one.

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post #2 of 31 (permalink) Old 03-24-2019, 01:16 PM Thread Starter
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Hi

The roll pin is actually still there, and here is a picture of the back of the balancer. I ges its more of a impression then a indentation.
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post #3 of 31 (permalink) Old 03-24-2019, 01:48 PM
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I don't know about anything else (it's many years since I had my V6) but chunks out of the pulley is not going to help balance anything.


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post #4 of 31 (permalink) Old 03-24-2019, 02:24 PM Thread Starter
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Hi

It was wobbling before the chunks broke off, they broke off while I was taking it off.
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post #5 of 31 (permalink) Old 03-24-2019, 04:19 PM Thread Starter
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Hi

Is the crankshaft drive gear supposed to be sticking out about 1/16" beyond the end of the crankshaft, or is it supposed to be flush with the end of the crankshaft?
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post #6 of 31 (permalink) Old 03-24-2019, 06:14 PM
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i'd reply, but it appears the admins deleted both my posts and the new thread i created where i had a question i needed answered. why bother joining a forum that deletes threads without warning?
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post #7 of 31 (permalink) Old 03-24-2019, 06:46 PM
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Quote:
Originally Posted by ajdragon View Post
Hi

Is the crankshaft drive gear supposed to be sticking out about 1/16" beyond the end of the crankshaft, or is it supposed to be flush with the end of the crankshaft?

Yes to the first question

and

No to the second.


In you're first pick you will see the indent on the balancer. The crank is suppose to fit in the indent with the index pin in the hole. Check the crank for burrs. Check the hub for burrs. It should fit in there because that is all the pulley uses for support.
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post #8 of 31 (permalink) Old 03-24-2019, 07:38 PM Thread Starter
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Hi

Thank you for the answers. I'm really hoping that the new balancer fixes the problem, otherwise I have no idea what else to do.

I have found what was causing the misfire, the last person that replaced the spark plug wires didn't seat the number 1 cylinder spark plug wire into the coil pack, resulting in a air gap spark that burnt up the inside of the coil connection. They also used RTV to seal the coil pack boots into the valve cover, can you guess what happened when I tried taking them out, one boot is in pierces, another has a hole in the side, and one of the coil connectors broke clean off in the boot, and not the one that was burnt up. Luckily I picked up three coils yesterday at the wrecking yard, they all work and the misfire is gone.

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Originally Posted by Lou Magyar View Post
i'd reply, but it appears the admins deleted both my posts and the new thread i created where i had a question i needed answered. why bother joining a forum that deletes threads without warning?
The same thing happened to me last night, I think it might be a glitch in there system.

Last edited by ajdragon; 03-24-2019 at 07:43 PM.
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post #9 of 31 (permalink) Old 03-24-2019, 11:31 PM
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Your list of problems sounds very similar to what I had on the motor of my 2005.....I think there's someone up on our area who shouldn't be working on Sorento's...

That balancer bolt is very critical, if its the least bit loose or wobbly that soft roll pin will shear and then that balancer will spin until either the motor quits or it comes loose. By the time i noticed mine was wobbling it had already spun the threads on the bolt and ruined the threads in the end of the crankshaft. It's quite a pita to repair at that point.

It might be worth it to pull that plastic lower timing belt cover off and make sure the balancer and gear are seating together properly before you tighten everything down.
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post #10 of 31 (permalink) Old 03-25-2019, 04:17 PM Thread Starter
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Hi

Whats the torque setting for the crank shaft bolt?
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