z31p_Nater86zx: Forum archive import (z31performance)

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{{ForumImport
|op_user=nater86zx
|op_date=2016-06-14 20:33:37
|post_count=20
|archive_url=/Z31performance_archive/forum/z31-repairs-forums/electronics/531133-starting-problem-help.html
}}

'''nater86zx:''' (2016-06-14 20:33:37)

'86 N/A

Z is not starting… battery is fine, alternator is new, starter is new, also recently replaced power cable from battery to starter with a new one. When I turn ignition it just goes "Click".... I took the new starter off and had it re-tested and it is good. Fuses are good. I swapped out the fuse relays for replacements and no change. Car almost left me stranded and I had to pop start it to get home. What am I missing here?

HELP!

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'''88sinZ:''' (2016-06-14 23:53:00)

We need more information.

DOES THE STARTER SOLENOID 'CLICK' while the motor doesn't engage? (attempt)

if not

Is your NEUTRAL SAFETY SWITCH PEDAL BUTTON intact and engaging? (inspect)

if not

do you have SPARK? (troubleshooting in FSM)

do you have FUEL? (troubleshooting in FSM)

I

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'''shromy:''' (2016-06-15 11:36:40)

check your ground

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'''nater86zx:''' (2016-06-15 14:37:59)

{{Quote|user=88sinZ|We need more information.

DOES THE STARTER SOLENOID 'CLICK' while the motor doesn't engage? (attempt)

if not

Is your NEUTRAL SAFETY SWITCH PEDAL BUTTON intact and engaging? (inspect)

if not

do you have SPARK? (troubleshooting in FSM)

do you have FUEL? (troubleshooting in FSM)

I}}

The solenoid DOES "click" when key is turned.

I do have spark

I do have fuel

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'''nater86zx:''' (2016-06-15 14:38:57)

{{Quote|user=shromy|check your ground}}

Ok, do u mean where the negative cable is attached on the tranny?

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'''shromy:''' (2016-06-15 14:43:27)

yes. if you have a dvom you can check end to end (batt to trans) it should ohm to 0. you either have a loose connection or bad ground location. Single click is usually the ground or the solenoid itself.

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'''nater86zx:''' (2016-06-15 16:45:42)

ground seemed fine but I changed out the negative cable for a new one anyway and still no change. I did jump the power from the small wire off the starter to the battery and the engine does turn over, so this tells me it may be the ignition. A new set with keys is $300.00 from advance auto.

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'''shromy:''' (2016-06-15 17:34:07)

the fact that it clicks tells you that start signal is coming into the starter, ie the switch is good. very strange. you can test for 12v at the small start signal wire when trying to crank it would be the next look. may be a wire issue from end to end coming from the switch.

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'''nater86zx:''' (2016-06-15 19:19:46)

ok, thank you. I will test the small wire for voltage.

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'''88sinZ:''' (2016-06-16 02:33:10)

If your starter solinoid 'CLICKS' and the starter doesn't engauge, your neutral safety switch button is intact, you have fuel, and you have spark....my first thought would be a shorted starter motor and I would suggest replacing the starter. Checking you wiring as Shroomy suggested is much cheaper - don't forget YOUR FSM HAS TROUBLESHOOTING FOR THESE ISSUES!!! it's saved me hundreds of dollars over the years, use the information they've provided!!!!

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'''mtherkamp:''' (2016-06-16 13:33:20)

If the starter motor was shorted, I don't think that jumping the solenoid on the starter would allow the engine to turn over. I agree with 88sinZ, use the EL section to test starter magnetic switch and check wire connections. A bad connection can read correct voltage, but not be able to support the amperage draw required to activate the mag switch. I would check the "B" connection to the battery because if you were able to jump the "B" to "M" and get motor to spin, the problem is probably there. However, if you jumped "S" to "B" and it spun then its a problem with the switch circuit from the ignition. Take your time and check everything methodically, you WILL find the issue. Best troubleshooting advice I ever got was never assume the last guy who was in there did it right, especially if that guy was you!

Good luck and keep us posted!

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'''nater86zx:''' (2016-06-17 10:29:35)

Ok I did remove the starter and had it re-tested to rule that out. The starter tested good at the store. I haven't had a chance to test the small wire yet. I will post results. Also I do not have an FSM, only an old ragged Haynes.

Also, the car does start occasionally, but only when it wants to and only on a blue moon on a leap year and if I shaved that day and if it didn't rain etc....

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'''mtherkamp:''' (2016-06-17 12:38:05)

Just do a google search on Z31 FSM, there WILL be a link somewhere that you can download it.

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'''nater86zx:''' (2016-06-22 11:24:37)

The wire from the ignition to the solenoid was bad. I replaced it and no problems yet.

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'''shromy:''' (2016-06-22 11:35:31)

glad you got it sorted

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'''nater86zx:''' (2016-07-16 17:31:21)

The starting issue is back. It seems to be getting worse now, sometimes it "clicks" and now sometimes it doesn't click at all. Occasionally the car will start, but not often. I replaced the ignition as well.

So…

New starter that was brought back and re-tested,

New alternator

battery tested good

checked fuses, swapped out a few relays

new ignition wire from ignition to solenoid

new (used) ignition

all other electronics are working (cluster, radio, lights, etc.)

when ignition is turned, sometimes a click is heard, sometimes not. occasionally car will start.

Any help is greatly appreciated.

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'''Reggie824:''' (2017-04-05 20:06:22)

Old thread but did you ever figure out the problem? Going through the same thing currently..[archived image: frown.png]

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'''FrozenZ:''' (2017-04-05 21:46:52)

Okay, this is going to sound stupid but put in a KNOWN GOOD battery, like one from another vehicle that's currently running and starting just fine. A lot of places can only test if your battery can hold a charge, not whether you're putting out enough amps to start the car. Also, go back through the thread and make sure to check your grounds.

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'''bonfire79:''' (2017-04-05 23:29:59)

could be possible that you're not getting fire to the coil. there is a power transistor / transistor ignition unit that can be going bad. its in the engine bay on the drivers side close to the coil. just a possibility. you should test that part.

Bon

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'''nater86zx:''' (2017-04-09 11:30:18)

My problem turned out to be the new starter was bad! I brought it back a SECOND time to get it tested and it finally tested BAD! So, got another replacement and that was it. Starts up fine now.

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