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96 C2 won't start

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Old 08-17-2008, 08:02 PM
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make_or_break
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Default 96 C2 won't start

Happened last night. Currently have a falsing problem w/ the alarm (bad sensor?). At a local mall I forgot--or ignored the issue--and set the alarm, only to have the alarm fire off roughly 15 minutes later. As I approached the car (with the horn still ablazin'), the horn suddenly cut out but the warning flashers were still blinking. I used the key fob to turn off the alarm and unlock the doors.

Where things went south was when I tried to start the car. Got the clicking noise of the starter, but no crank over. Battery had excellent juice, but couldn't start the car. Had to wait for a flatbed to have the car brought home. I assume that it may have something to do with the immobilizer. Looked over the fuses for all the good that did; no blown fuses and no capability to check any of the relays. Guess it's another tow-in to Aker's (sigh).

AAA must be really getting tired of me and my cars by now...
Old 08-17-2008, 08:08 PM
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Chuck W.
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Have you recently added anything like an iPod? Check the grounding cable from the battery.
Old 08-18-2008, 12:06 AM
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make_or_break
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Visually checked the cable; looks fine w/ solid connections and no corrosion.

I did have a new h/u installed over a month back. It's possible that it's the source of the problems, although the false alarm problems only started a few days ago and the car has had plenty of use in the meantime. The way the horn blanked out when the alarm was firing, I tend to think that something with the immobilizer and/or alarm is the cause (the horn works fine when activated by the steering wheel).

I think I'll try to get the alarm to fire off again, and see what happens.
Old 08-18-2008, 12:09 AM
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gr8330
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Did you lock and unlock the car three times then try to start it?
Old 08-18-2008, 12:13 AM
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Sounds like the fuel pump relay to me.

sean
Old 08-18-2008, 04:24 AM
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Don't overlook the obvious. Although your battery has excellent juice, you should still load test it. While someone turns the car over, connect a mulitmeter across the terminals. If the battery is good, its voltage should remain consistent under load.
Old 08-19-2008, 12:45 PM
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Thanks for the advice. Didn't know about the lock/unlock technique...but alas, it didn't work. Hopefully I'll have some time tonight to look at the car and give the battery a serious once over.
Old 08-23-2008, 01:21 PM
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It was indeed the battery. Even after I pulled it and bench charged it, by the next day the test meter on the charger showed it had lost a quarter of its reserve. Went south, and fast. Thanks for all the help and suggestions.

Now that I know what to look for from the door LEDs, the next on the to-do list is to fix the alarm system. And so on it goes...
Old 08-23-2008, 02:36 PM
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It sounds more like a current drain and the alarm issue is a symptom of a low charge condition. Battery may be fine.

dave



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