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Old 05-15-2011, 07:48 PM   #1
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Check engine diagnostic

Hey fellow jeepers, does anyone know if there are places that will do a free check engine light diagnostic on a 1994 jeep wrangler? My poor jeep is sick and I gotta find out what's wrong with it.

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Old 05-15-2011, 08:40 PM   #2
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You can take it to any autozone and get the code pulled for free. You should be able to pull the code yourself though. Switch your key to the on position then off, on, off and then on. After a few seconds the CEL will begin to flash. Count the flashes. it will pause between numbers. When you get a code 55, you are done.

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Old 05-16-2011, 12:35 AM   #3
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Yea I tried asking autozone but they said they don't do that anymore.
I did the on off on off thing and I think I got a code of 3636. Do you know of a website that'll tell me what that code means? Thanks so much for helping me out, truly appreciate it!
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Old 05-16-2011, 12:55 AM   #4
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No code 3636 but this may help. Are you sure you pulled the code correctly?

1991-1995 Jeep Wrangler YJ - Trouble Codes
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Old 05-16-2011, 02:04 AM   #5
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Quote:
Originally Posted by Xjman1
No code 3636 but this may help. Are you sure you pulled the code correctly?

1991-1995 Jeep Wrangler YJ - Trouble Codes
Thanks for the code link, I guess I didn't do it correctly the first time. I'm pretty sure I did it right this time and I got multiple codes. The long pauses separate each individual code right? If so I got 12, 33, 21 and 42. I'm no mechanic so I'm hoping someone could explain to me in simple, new to the jeep world terms what the codes mean. Again thanks for your help!!
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