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Unread 04-16-2007, 03:28 PM   #1
odie6423
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Join Date: Apr 2007
Location: Long Beach, CA
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Question - Check engine light

I've recently bought an '02 4cyl Wrangler. After noticing my check engine light on I found that my gas cap was loose. Assuming this is the only issue, what is the cheapest way to get the light off? Will it shut itself off over time? Will unhooking the battery reset the computer? And more importantly, will fixing this on my own show up in a future diagnostic and void my Limited Drive Train Warranty? Any help is appreciated.....thanks.

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Unread 04-16-2007, 03:35 PM   #2
Conundrum
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Location: Western Maryland
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Disconnect the battery for about 5 minutes.
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Unread 04-16-2007, 04:18 PM   #3
westmichjeeper
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2009 JK Wrangler 
 
Join Date: May 2006
Location: michigan
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drive for about 50 miles or so and the lite will shut off
but be sure gas cap is tightly sealed or it will not turn off
i had this happen to me twice once some one stole my gas cap and once i did not remove ice from around seal
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Unread 04-16-2007, 05:10 PM   #4
kloppk
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1992 YJ Wrangler 
 
Join Date: Oct 2006
Location: Massachusetts
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Take it to you local Autozone. They will scan the computer for FREE and tell
you what the problem(s) that caused the light to go on.
They can also turn the light off too.

Of course if there is still a problem the light will be back on in a while.
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