99 Explorer code 340

MASTERTECHTIM

MECHANIC
1999 ALL OTHER MAKES ALL OTHER MODELS

Ive got a 99 explorer with 5.0 and keeps setting cam code 340. I got this from another shop, they already replaced the cam sensor and oil pump drive. I took it apart and set it with the cam alignment tool, checked wires to the computer and they ohm out perfect, has anyone seen a worn timing chain cause this, or any ideas would be appreciated. Thanks tim

Sunday, February 3rd, 2008 AT 12:41 AM

5 Replies

BMRFIXIT

MECHANIC
19,053 POSTS

Hi Tim
did you check the TSB
I know they had one on that subject check it out
good luck
Jack

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Sunday, February 3rd, 2008 AT 12:47 AM

MASTERTECHTIM

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4,750 POSTS

The only bulletin I saw was to make sure the drive gear assembly was set with the proper tool and I did reset it correctly. My next logical guess is the computer but I hate pitching parts.

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Sunday, February 3rd, 2008 AT 12:49 AM

BMRFIXIT

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I think I saw something in mitchell about that
if you dont have it let me know I will try looking it up and will send it

I hate it when it comes to here and I’m faced with the same question do it throw parts at it
not in my blood I have to make sure something is bad before I change it.
Did you do a wave test
or check cam waves
cylinder balance test

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Sunday, February 3rd, 2008 AT 1:12 AM

MASTERTECHTIM

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At my shop I have all data, so you might have a bulletin I have not seen in your mitchells on demand. No I did not do a wave test, unfortunately I dont have a scope yet, im using the genesis for now, im trying to convince my partner that the snap on modis is a smart buy, but we have only been in business since july and until now I have not had the need for it. Anything you could send would be appreciated. Tim

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Sunday, February 3rd, 2008 AT 1:16 AM

BMRFIXIT