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#3570606 - 03/17/09 01:42 PM Weird issue with 240Z (randomly dies)
Mikey_b Offline
Post Master Supreme


Registered: 04/11/00
Posts: 47099
I had my 240Z in storage for 7 months and recently started driving it again (about 3 weeks ago). It drove great and almost started up immediately even after sitting. But about two weeks ago it randomly died while driving around. I felt kind of a hiccup in the carbs (like a flat spot) and all of a sudden the car just dies (and I have to coast it off the road). When I try to start it, the ignition works but the car stumbles (like it's misfiring) and then dies again. But I then let it sit for about 3 minutes and starts up just fine again and I can drive off. Sometimes I can drive it fine after that while other times it will just randomly die 10 minutes later.

At first I thought it was a bad fuel pump or a clogged fuel filter. But I ended driving it the next day and it drove great for 3-4 days. But then it did the same thing again. I finally realized that it's only happening at night. What's weird is that it happened the other night but when I tried to start it, there was no noise from the starter (just silence when I turned the key). This is where it gets weird...after turning my headlights off, I tried turning the key and it started up again fine.

So now instead of a fuel pump/filter, I'm thinking it could be a battery/alternator.

Any other suggestions?

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#3570765 - 03/17/09 02:14 PM Re: Weird issue with 240Z (randomly dies) [Re: Mikey_b]
Impulsive Offline
Post Master Supreme


Registered: 11/28/99
Posts: 79972
Loc: Edmonton
Check your grounds, get the battery tested, check the distibutor.

Also, did you use fuel stabilizer? Maybe you have bad gas.
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#3570820 - 03/17/09 02:28 PM Re: Weird issue with 240Z (randomly dies) [Re: Impulsive]
Mikey_b Offline
Post Master Supreme


Registered: 04/11/00
Posts: 47099
Yeah, I'm testing my battery after work today. Yeah, I used fuel stabilizer but I'm already on my 3rd tank since then.
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#3570978 - 03/17/09 03:05 PM Re: Weird issue with 240Z (randomly dies) [Re: Mikey_b]
LNXGUY Offline
Post Master Supreme


Registered: 08/06/00
Posts: 106985
Loc: Barrie, Ont,
What do the carbs look like?

Could be your coil going out...
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#3575393 - 03/18/09 09:33 PM Re: Weird issue with 240Z (randomly dies) [Re: LNXGUY]
Mikey_b Offline
Post Master Supreme


Registered: 04/11/00
Posts: 47099
Nah, the carbs are good. Took my battery in and it's holding a charge fine. I'm going to have my alternator checked out now. If not that, I'll start checking out the fuel system. I really think it's the electrical system because it only happens at night (probably due to the heavier draw from headlights).
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#3578813 - 03/19/09 09:31 PM Re: Weird issue with 240Z (randomly dies) [Re: Mikey_b]
Mikey_b Offline
Post Master Supreme


Registered: 04/11/00
Posts: 47099
It was the alternator. I had it checked at autozone and it failed on their test bench. They had one in stock and it was mis-marked....I got one with a lifetime warranty for $35.
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#3579649 - 03/20/09 04:00 AM Re: Weird issue with 240Z (randomly dies) [Re: Mikey_b]
stickaz_old Offline
Post Master Supreme


Registered: 02/04/01
Posts: 56459
Loc: Nor Cal, Hella hurr durr
i was gonna say teh choke
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#3580220 - 03/20/09 10:14 AM Re: Weird issue with 240Z (randomly dies) [Re: stickaz_old]
Mikey_b Offline
Post Master Supreme


Registered: 04/11/00
Posts: 47099
The big giveaway was the fact it only happened at night....and also the time my car wouldn't even start until I turned the lights off for a second. I figured it had to be the extra electrical draw.
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