98 Laredo Won't Start - JeepForum.com
 
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post #1 of 3 Old 10-20-2019, 03:11 PM Thread Starter
Russ_BKT
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98 Laredo Won't Start

I recently bought a 98 Grand Cherokee Laredo IL6 and drove it home (about 30mi) just fine, parked it to do a tune up, when I came back to do the tune up (3 days) it wouldn't start. I've changed relays (ASD & FUEL PUMP), spark plugs, plug wires, unhooked fuel line to check pump and it shoots prime and pumps while key is turned. It will start and run for 3-5 seconds and then dies. I'm befuddled on what it might be. Possibly a security feature? When I connect battery headlights flash like alarm is going off but no honking. Found this video on YouTube https://youtu.be/sBp9Sy2yzpQ of a Jeep doing exactly the same thing but there is no information on what the problem is or how to fix it. HELP PLEASE! THE SNOW IS COMING!

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post #2 of 3 Old 10-20-2019, 03:25 PM
jeep_2017
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I would think this is a security issue with alarm system.
You need to look into disable the alarm system I am not quite sure about 98 ZJ but on 95 you can disable the alarm by grounding one wire. This forum should have info if you search for Jeep Grand Cherokee alarm disable.
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post #3 of 3 Old 10-21-2019, 09:10 PM Thread Starter
Russ_BKT
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Possibly the problem? What did this plug, once, plug into?
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