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Old 07-14-2013, 03:31 PM   #1
TheHexIsReal's Avatar
Join Date: Oct 2012
Location: Triad, NC
Posts: 167
Tj starts... Dies seconds later

After having to jump my jeep last week, I finally bought a new battery after coming back from vacation this week, After getting no input trying to start.

After putting the battery and now it works, starts up fine, but dies three seconds later. Everything seems is a fine and hooked up right. Am I missing something? or is this a perfect storm and there's something else wrong?

go hard or go home
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Old 07-14-2013, 05:16 PM   #2
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Join Date: Mar 2012
Location: North TX
Posts: 2,411
check your fuel pressure to rule out a faulty pump/leaky regulator..Should be around 49psi.

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Old 07-14-2013, 06:01 PM   #3
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Join Date: Jun 2012
Posts: 807
If that teata fine from above post my cps went badamd it would stary vut wiuld die after about 10 seconds... Id check that too
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Old 07-14-2013, 08:03 PM   #4
Knows a couple things...

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Jerry Bransford's Avatar
Join Date: Nov 2005
Location: Escondido, Calif.
Posts: 38,468
If the engine dies consistently 1-2 seconds immediately after starting, and an amber 'Key' symbol has lit up on your dash, and your ignition key is gray indicating a computer chip inside, that means the SKIM (security key immobilizer module) has killed the engine because it detected an ignition key that wasn't generating the right security signal.

Did you have any keys cut recently that don't have the correct chip inside? My wife's newish Grand Cherokee developed the same problem but it turned out one of her factory SKIM keys went bad. Using my gray ignition key got us home.
When you have a choice, buy American.

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Old 07-14-2013, 08:57 PM   #5
Kens TJ's Avatar
Join Date: Jan 2012
Posts: 71
My 01 did the same thing it ended up being my IAC. Bought one at advanced auto for $70 and started right up. 15 minute job.
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