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post #16 of 33 Old 09-01-2014, 08:09 AM Thread Starter
unkajeffy
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Originally Posted by laybackman View Post
Unplug it and find out!!
Was that an answer or a suggestion? LOL once again thanks for the help, I will look into that after work. Double time and a half pays for parts. I got to find out if Radio shack is open for capacitors.


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post #17 of 33 Old 09-01-2014, 08:20 AM Thread Starter
unkajeffy
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Well RS is open has three caps in stock. So i will get those and some silicone sealer just in case. Its actually a miracle out here in the boonies.

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post #18 of 33 Old 09-01-2014, 08:47 AM
laybackman
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Was that an answer or a suggestion? LOL once again thanks for the help, I will look into that after work. Double time and a half pays for parts. I got to find out if Radio shack is open for capacitors.
I know on the '92 and newer units if the VSS shorts internally the engine will turn but NEVER fire up. 91 was a 'hybrid year' it had a cable driven speedo and a VSS IIRC.

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post #19 of 33 Old 09-01-2014, 10:38 AM
mike134
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ugh, radioshack... I think I should start sending people capacitors in the mail... I bet the capacitors at radioshack are still from the capacitor plague days.
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post #20 of 33 Old 09-01-2014, 11:12 AM Thread Starter
unkajeffy
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Originally Posted by laybackman View Post
I know on the '92 and newer units if the VSS shorts internally the engine will turn but NEVER fire up. 91 was a 'hybrid year' it had a cable driven speedo and a VSS IIRC.
I had noticed the cable when changing the TC/tranny fluids. My 91 XJ had no cable but was an automatic tranny. I will give that a whirl after work.

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post #21 of 33 Old 09-01-2014, 11:15 AM Thread Starter
unkajeffy
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WTH is a capacitor plague? I am 49 and don't remember getting shocked by a herd of rogue capacitors.

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post #22 of 33 Old 09-01-2014, 12:00 PM
mike134
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in the late 90's - early 00's some guys in Taiwan stole the capacitor electrolyte recipe from Panasonic (the largest manufacturer of capacitors). They started manufacturing them at a massive scale in china for undercut prices. Every major company bought their capacitors and re-branded them as their own.

They forgot to steal the recipe for preservatives...

It is why almost all electronics from that era are absolute garbage. It's why your TV, blender, coffee maker, computer, TV remote, washer and drier, dishwasher failed after a few months

Radioshack doesn't sell a lot of capacitors anymore, so they are probably the same ones from that era.
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post #23 of 33 Old 09-01-2014, 02:14 PM
Mike Romain
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Originally Posted by mike134 View Post
in the late 90's - early 00's some guys in Taiwan stole the capacitor electrolyte recipe from Panasonic (the largest manufacturer of capacitors). They started manufacturing them at a massive scale in china for undercut prices. Every major company bought their capacitors and re-branded them as their own.

They forgot to steal the recipe for preservatives...

It is why almost all electronics from that era are absolute garbage. It's why your TV, blender, coffee maker, computer, TV remote, washer and drier, dishwasher failed after a few months

Radioshack doesn't sell a lot of capacitors anymore, so they are probably the same ones from that era.
They also forgot to put vents in lots of those. I see them with the top centres bulged out lots.

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post #24 of 33 Old 09-02-2014, 06:46 AM Thread Starter
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Learn something new everyday. Hope these cap aint junk. Update: Unplugged vss, no change Commencement of brain surgerey.

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post #25 of 33 Old 09-02-2014, 08:13 AM
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If you have power on pins 3/9 and no CEL then you have bad caps. The shorted NSS will cause the sensor voltage to short at the crank sensor.
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post #26 of 33 Old 09-02-2014, 08:14 AM Thread Starter
unkajeffy
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Brain surgery completed. I used the sticky right up as a guide but my PCM's capacitor locations were different than the write up. I assume because its a six cylinder. After a short recovery period I will install the brain in the patient and see whats up. Hope this works.

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post #27 of 33 Old 09-02-2014, 01:39 PM
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The OP's description of his problems sounds a LOT like my problem, which I posted about last week: http://www.jeepforum.com/forum/f12/s...iving-2669050/

I'm still trying to verify that this isn't a fuel pressure problem (replacing fuel filter next), but if that doesn't bear fruit, I will be back here to see what else to try.
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post #28 of 33 Old 09-02-2014, 02:04 PM Thread Starter
unkajeffy
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Originally Posted by Dwiggy444 View Post
The OP's description of his problems sounds a LOT like my problem, which I posted about last week: http://www.jeepforum.com/forum/f12/s...iving-2669050/

I'm still trying to verify that this isn't a fuel pressure problem (replacing fuel filter next), but if that doesn't bear fruit, I will be back here to see what else to try.
You can use a jumper wire across the fuel pump solenoid socket I cant remeber the pin numbers right of hand but the circuit diagram on the solenoid will show you. I think its 30 and 87. If your fuel pump is working you can put the gauge on the schrader valve. But the brain surgery isn't difficult at all

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post #29 of 33 Old 09-02-2014, 02:11 PM
mike134
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Well RS is open has three caps in stock. So i will get those and some silicone sealer just in case. Its actually a miracle out here in the boonies.
Actually, if you're in desperate need, you just need to get on the radio and ask. I'm sure your friendly local Ham operator would lend you a cap if you were in dire need.
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post #30 of 33 Old 09-02-2014, 02:18 PM Thread Starter
unkajeffy
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Originally Posted by Que89YJ View Post
If you have power on pins 3/9 and no CEL then you have bad caps. The shorted NSS will cause the sensor voltage to short at the crank sensor.
Damn Que, if I had read this yesterday I wouldnt have had to dig a tick outta my crack from crawling under the damn thing to unplug the vss. Damn Jeeps anyway, a heroin addiction is probably cheaper.

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