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Old 05-25-2018, 03:43 PM   #1
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Default Nissan d21 starting problem.

I have a new to me d21 Hardbody. It was running fine when I first picked it up last fall. Right before I put it away for the winter I started having problems getting it to run. Over the winter I replaced the battery, the starter, and the alternator. I followed all the wires and made sure nothing was grounding out. For some reason Im still having trouble with it. When I get it started it runs fine but as soon as I turn the truck off it wont restart. It will restart with no problem when I use my jumper. Im running out of things to try so any help would greatly appreciated and thanks ahead of time.
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Old 05-25-2018, 05:28 PM   #2
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What exactly is it doing? Crank? No crank? Have you pulled codes? 96 KA24, correct?
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Old 05-25-2018, 06:17 PM   #3
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replace the starter relay. it is a blue relay with two plugs, located on the passenger fender well.


if it is a manual transmission, there is also a clutch safety switch located at the top of the pedal.
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Old 05-26-2018, 03:14 AM   #4
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You say it starts fine with a 'jumper?' You mean you use a piece of wire on the starter to jump across the circuit?

If so, it's the solenoid relay in your starter motor, as long as the connections on the starter are good.

I would also check the little blue relay box, like the previous person suggested.

You didn't say if the motor turns over and won't start, or if the motor DOESN'T turn over at all. Those can be two different problems. Need more info here?
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Old 05-26-2018, 06:05 AM   #5
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Following to see if the OP can clear up the confusing post.
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Old 05-26-2018, 10:49 PM   #6
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I’m have a similar problem with my 92 stick 4wd. It starts fine if I get lucky then wownt restart after I let it run for some time. It cranks but no spark
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Old 05-26-2018, 11:08 PM   #7
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I had a cracked distributor cap that caused no spark of the engine got wet. After five minutes or so, it would start and was fine.
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Old 05-26-2018, 11:59 PM   #8
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Quote:
Originally Posted by cadillacdude1975 View Post
I had a cracked distributor cap that caused no spark of the engine got wet. After five minutes or so, it would start and was fine.
Funny because I took off the cap and cleaned it and the truck fired right up, but then it wouldnt start again. Where can I buy a quality cap at a reasonable price?
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Old 05-27-2018, 12:54 AM   #9
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Quote:
Originally Posted by Hardbody92 View Post
Funny because I took off the cap and cleaned it and the truck fired right up, but then it wouldn’t start again. Where can I buy a quality cap at a reasonable price?
If you clean a cap on the INSIDE, that's the last time it will ever work right. When they get old, sometimes it's only the corrosion on the contacts continuing to carry the spark. Remove that...no more spark at all.
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Old 05-27-2018, 01:14 AM   #10
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Sorry if I was unclear about what I meant. When I was talking about jumping it to get it to start I meant I was using my battery charger to start the truck. Once the truck is running everything seems fine until I turn the truck off and try to start it again. I replaced the starter relay as soon as this started. I have also replaced the distributor cap, new plugs and wires. I took the alternator and the battery to advanced auto and both of them passed the tests with no problem. I spent today going through the truck and checking all the wires to make sure nothing was being grounded out.
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