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Check engine Light

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Old 08-15-2009, 11:18 AM
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Default Check engine Light

Hello to all, I've been reading this forum a lot. I think I will like it here.

I have a 96 Grand Cherokee limited with the 4.0 and TWD. This thing is super nice, I got it about 10 days ago and am already in love.

It runs great, but I have always been paranoid about check engine lights. I did the on/off on/off on thing, and on the odometer it displayed 12, and the check engine light flashed 3 times, with about a full second pause between flashes. What does this mean? I read where code 12 means the battery has been disconected with the last 50 crank cycles. I hope thats all it is! Is that all it is?


Last edited by KyleKnight; 08-16-2009 at 06:15 AM.
Old 08-18-2009, 09:14 AM
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I figured out what 2 of my three codes are. It shows 12, 27, 72. The first 2 I got, but can't find info about 72. Its a 96 Grand Cherokee with the 4.0.

Anyone?
Old 08-18-2009, 06:40 PM
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Nice looking ZJ. Anymore pics?
It gives the codes here.-> Computer codes
And Welcome to CF.

Last edited by ol"blue; 08-18-2009 at 06:44 PM.
Old 09-15-2009, 03:22 AM
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A few weeks ago, I told you all about some fault codes my 96 GC had. I have cleared up everything but the 43 code. It stalls, dies while in gear. I have replaced the cat. converter, muffler, coil, crank position sensor. It still stalls. I was told by a supposed to be great mechanic that the Clifford alarm is malfunctioning, causing the engine to stall and die. I yanked it out and drove it a bit, it seemed fine but I simply don't trust the Jeep yet.

Can a malfuncting Clifford alarm system cause stalling/death?
Old 09-15-2009, 06:00 AM
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Originally Posted by KyleKnight
Can a malfuncting Clifford alarm system cause stalling/death?
YES
Old 09-17-2009, 02:03 PM
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That code 43 misfire could be any of the: plugs, distributor cap, rotor, wires, or one of the fuel injectors being worn/dirty/damaged.
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