Crank no start

CLAYTON9203

MEMBER
2005 KIA SEDONA
3.5L
V6
2WD
AUTOMATIC
173,000 MILES

The van basically starts when it wants to. But when it doesn't it either backfires badly or turns to no spark. The crankshaft sensor was replaced, good coils good ignition fail sensor, timing is good, no fault codes map sensor is good, good computer is good as far as I know, doesn't seem to be bad anyway. I am at a loss here all fuses are good and as a precaution to that they were all replaced. Also the fuel regulator was replaced.

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Tuesday, May 28th, 2019 AT 9:04 PM

13 Replies

KEN L

MASTER CERTIFIED MECHANIC
42,973 POSTS

It sounds like the PCM is bad. Can I ask when it starts does it run okay? Here is the PCM location so you can swap it out with a used or rebuilt unit. Remove the connectors to check for corrosion/water damage as well. Check out the diagrams (below). Please let us know what you find.

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Thursday, May 30th, 2019 AT 12:57 PM

CLAYTON9203

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8 POSTS

PCM is good, somehow the angle sensor blade got bent and screwed the sensor cause it is now bringing the p0338 crankshaft sensor code. I am going Saturday to find a new sensor and maybe a new crankshaft gear, even though I replaced it not even two months ago. :( Darn Kia's!

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Thursday, May 30th, 2019 AT 8:04 PM

CLAYTON9203

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When it did start, it would not idle and backfired.

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Thursday, May 30th, 2019 AT 8:06 PM

KEN L

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Okay let me know what happens, Can you please shoot a quick video with your phone so we can see what's going on, that would be great. You can upload it here with your response.

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Saturday, June 1st, 2019 AT 1:01 PM

CLAYTON9203

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I got the parts put on and it started right away. But then it shut off like it usually does. Turns out I forgot to hook the one of the coil packs up. Then tried again and it started, still would not idle but sounded better than it used to. But now it will crank and fire but will not start.

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Tuesday, June 4th, 2019 AT 9:51 AM

CLAYTON9203

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Also when it was started, no backfiring! But now when it is trying to it does.

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Tuesday, June 4th, 2019 AT 9:52 AM

KEN L

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It sounds like we are getting closer to the fix, please upload a video of how it running. Also is the code p0338 gone now?

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Tuesday, June 4th, 2019 AT 11:43 AM

CLAYTON9203

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I will upload the video later as I now am re-timing it. The car was about five teeth off. My guess is that it slipped, but I am am lucky as these are interference motors (which is the reason I have done everything I have to it.

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Tuesday, June 4th, 2019 AT 1:19 PM

KEN L

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Yep that will do it. I found the timing belt replacement instructions and diagrams below to help you do the job. Check out the diagrams (below). Please let us know what happens.

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Wednesday, June 5th, 2019 AT 10:33 AM

CLAYTON9203

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Made sure that timing is set right and at proper tension and it is still doing same thing. Cranking acts like it wants to start but will not.

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Wednesday, June 5th, 2019 AT 7:01 PM

KEN L

MASTER CERTIFIED MECHANIC
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Will it run on starting fluid? also lets do a compression test to make sure the timing is correct. Can you please shoot a quick video with your phone so we can see what's going on, that would be great. You can upload it here with your response.

https://www.2carpros.com/articles/how-to-test-engine-compression

Please run down this guide and report back.

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Thursday, June 6th, 2019 AT 1:52 PM

CLAYTON9203