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Unread 04-25-2004, 12:30 PM   #1
badpenny
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Join Date: Apr 2004
Location: Lima, Ohio
Posts: 3
What is the problem?

My '93 Grand Cherokee
will not start--it ran when my wife came home from
> work on Thursday afternoon, and would not start
> Thursday night. I have obtained a Haynes manual and
> have already changed the plugs (to Bosch
> platinums--they are identical to the Champions that
> I removed), plug wires, cap & rotor. All components
> replaced were in need of replacement anyway. Here is
> where my confussion begins: the battery tests at
> 11.9 volts, and the connections have been cleaned,
> the only fault code I can get is for "problem with
> battery connection". To further try to diagnose the
> problem, I've used a new spark plug to ground the #2
> wire to the block--no spark. I did the same with the
> coil wire--spark! I've removed the cap and bumped
> the starter and the rotor spins, the coil wire
> button in the cap appers to be making contact,
> everything appears to be correct. I've tested the
> Auto Shutdown relay and it seems to be functioning,
> tested the cam position sensor and the crankshaft
> position sensor as directed in the manual and they
> appear to be functioning. I forgot to disable the
> fuel pump prior to the first test and can tell you
> that the fuel system smells like it is functioning.
> After all this the only code is "problem with
> battery connection"
> Now here is something to complicate things
> further--EVERY time the driver's door is opened with
> the key in the ignition switch the security alarm
> sounds!! I haven't locked the doors since I started
> working on it 3 days ago. Now I wonder if the
> security system is not allowing the vehicle to start
> somehow. Can this be the case? I am unable to make
> sense of this myself because the diagrams (or the
> rest of the manual for that manner) don't show
> anything about the security system. I'd like to
> avoid taking it to a dealership if I can due to
> labor costs. I hope that I've provided enough info
> for you. Thankyou

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Unread 04-25-2004, 02:21 PM   #2
10achik
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Nice description of your problem, most just say, it wont start...

It sounds to me like your security system is causing the problem. Im not sure about the 93, but if the alarm is activated the car will not start. Part of a starter kill or something...

This may sound silly, but does your key fob still work, just try to lock it and unlock with the buttons to activate/deactivate it. If that doesn't work I would say that your alarm is stuck in active mode, I can't really help in disarming that, but hopefully someone else in here can.
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Unread 04-25-2004, 10:06 PM   #3
Meerkat
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Quote:
Originally Posted by i0achik
Nice description of your problem, most just say, it wont start...

It sounds to me like your security system is causing the problem. Im not sure about the 93, but if the alarm is activated the car will not start. Part of a starter kill or something...

This may sound silly, but does your key fob still work, just try to lock it and unlock with the buttons to activate/deactivate it. If that doesn't work I would say that your alarm is stuck in active mode, I can't really help in disarming that, but hopefully someone else in here can.

Actually, the Jeep will start, even with the alarm sounding (personal experience). In fact, the owner's manual says that one way to disarm the alarm, is to drive 35 MPH or faster. I'm pretty sure it has to start to do that.
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Unread 04-27-2004, 02:34 AM   #4
RockPaws
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The battery connection code, is due to the battery being disconnected reciently - ok. Have you checked your fuel pressure? Sounds like a possible fuel problem.
Another thought about the alarm, some vehicles I work on, when the battery has been disconnected. You have to turn the key in the drivers door back and forth.... its worked in the past. try it ..
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Unread 04-27-2004, 03:50 AM   #5
LTDunltd
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Quote:
Originally Posted by badpenny
My '93 Grand Cherokee
will not start--it ran when my wife came home from
. To further try to diagnose the
> problem, I've used a new spark plug to ground the #2
> wire to the block--no spark. I did the same with the
> coil wire--spark! I've removed the cap and bumped
> the starter and the rotor spins, the coil wire
> button in the cap appers to be making contact,
> everything appears to be correct.
edited for reply;

Buy what you have writen. I take it that when you put a spark plug in the #2 plug wire, you got 'No Spark', but when you put it in the coil wire you got 'Spark'

Now here are the things you need to check;
1)Continuity from the coil tower to the button.

2) Align the timing mark on the crankshaft to TDC. (to make sure you are not out 180 deg. you will have to remove the #1 spark plug and stick a piece of wire in the hole. if you hit the piston your OK, if not turn the crank 360 deg. [one full revolution] ) After that make sure that the rotor is pointing toward the #1 tower. And that the wires are in the right sequence. (I have wired the cap backwards before).
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Unread 04-27-2004, 06:14 AM   #6
gthaefner
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your alarm is going off because there is a broken wire in the door jam that tells the alarm when do disarm when u unlock the door. open the door and look inbetween the hinges and there is a big black rubber tube holding all of the wires going to the door. find the broken one and just splice a new peice of wire into it. about the engine i cannot help u there.
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Unread 05-11-2004, 08:51 PM   #7
badpenny
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Location: Lima, Ohio
Posts: 3
Thanks For Your Help...problem Is Fixed

Thank you to everyone who responded! After much frustration, we broke down and had the Jeep towed to our local dealer....the problem was the coil wire. So $219.00 later, it is fixed and running fine. Of course, a week later, the dealer got another $300.00 out of us when the ignition went bad!...But that was something that noone could have forseen. Flange broke, had to be replaced and electronically reset. But is better now...so thanks again all. We know where to come when problems arise!
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