Dreaded no start

[Ozruss90]

Need some advice please. Come across the No Start issue, a couple of times recently. 1st time, I started the Z at home as per normal, drove it into town to a shop to get some electrical work done. Got a call 20min later to say they couldn?t start the car. I went back to the shop and the car started ?? 2nd time, Started and drove to a meeting point prior to going to a car show. Turned it off, and 5 min. later wouldn?t crank. All ignition lights but no crank or click from the solenoid. Push started and went to the show. Car parked at show for numerous hours and started up fine to come home. Tried once home re starting and no crank.
It appears that it will start every time when cold, but once it has some temperature, it fails to crank over
Clutch switch bypassed, Starter relay added .
1990. #2774

Cheers from down under.🇦🇺
Russell

[secondchance]

Starter solenoid needs a rebuild. Time to replace contacts and plunger.

http://www.zr1.net/forum/showthread.php?t=27965

[tccrab]

Just happened to me, the battery was low (and over 5 years old)
Had enough juice to start, but wouldn't even click the solenoid after a 15 minute ride.
Charged the battery, no problemo, started right up.
Bought a new battery and no more problem.

Crabs

[Ozruss90]

Just happened to me, the battery was low (and over 5 years old)
Had enough juice to start, but wouldn't even click the solenoid after a 15 minute ride.
Charged the battery, no problemo, started right up.
Bought a new battery and no more problem.

Crabs

Thanks tccrabs, l will try a jump starter on it to eliminate a battery issue prior to attacking a starter solenoid rebuild. Process of elimination. It?s either the battery as you mentioned or the solenoid.

[Ozruss90]

Starter solenoid needs a rebuild. Time to replace contacts and plunger.

http://www.zr1.net/forum/showthread.php?t=27965

Didn?t want to pull the plenum, but will if I have to. How hard can it be 🤣🤣 I?m sure there is good info / instructions on here. Will have to get Jerry?s to ship out to Australia gaskets and what ever l may need to do it. BTW after reading your post on the solenoid rebuilt, l was wondering, the Denso 053660-7061 plunger kit . Does it come with the contact plates, or are they purchased separately?

Thanks, Russell

[secondchance]

Kit comes with contacts and plunger.

[dredgeguy]

Had the exact same issue, put in a new battery and problem solved but to be sure will rebuild the starter as well during our next Wazoo maintenance day.

[Ozruss90]

Had the exact same issue, put in a new battery and problem solved but to be sure will rebuild the starter as well during our next Wazoo maintenance day.

Thanks Charlie,
Hope it is just the battery. I know the previous owner had had the plenum off, so l will check with him if he did the starter.

[dredgeguy]

Good luck, you know how this progresses, while you're in there................

[Ozruss90]

Had the exact same issue, put in a new battery and problem solved but to be sure will rebuild the starter as well during our next Wazoo maintenance day.

UPDATE: Knowing that the clutch switch wasn?t the culprit ( bypassed ) and the wiring in of the auxiliary relay didn?t help, l decided to throw in a new battery, as l didn?t know the age of the one in the car.
BINGO. At this point I haven?t been able to get a no start on a warmed up / hot engine. Thanks ?dredgeguy? for the recommendation. I will purchase a starter solenoid plunger and contacts kit anyway for when and if l do pull the plenum at some point🫰

Cheers from down under 🇦🇺
Russell

[max76]

I had the same problem some years ago...change the starter and the problem was solved...

[Ozruss90]

Only driven the car on a few short trips since putting in the new battery, but l haven?t had a problem so far. Odd, because the car started every time and never seemed to lack power while cranking at cold start.. But when hot, it would not even crank. New battery seems to have fixed the issue. Happy days🍻

[mlipmd]

The reason a new battery has worked so far to correct this problem is that it may put out a higher amp surge to overcome the resistance of the corroded/worn solenoid contact surfaces. The problem still emanates from the starter solenoid and the new battery has temporarily solved that issue.

[Ozruss90]

The reason a new battery has worked so far to correct this problem is that it may put out a higher amp surge to overcome the resistance of the corroded/worn solenoid contact surfaces. The problem still emanates from the starter solenoid and the new battery has temporarily solved that issue.

That ?wonder if ? thought ran through my mind as l was typing in the last post. You are probably correct that the extra power/amps of the new battery is just a temp. fix until l repair the starter.

Cheers, Russell

[Zedder94]

Ozruss90, Just had the same problem mate. I just shipped a 94 ZR1 to Australia, when it came out of the container it wouldn't start. Even with a jump pack...

Installed a new battery and have not had a problem yet. Just thought id add my 2 cents mate. Good luck.

Jay.

[Ozruss90]

Ozruss90, Just had the same problem mate. I just shipped a 94 ZR1 to Australia, when it came out of the container it wouldn't start. Even with a jump pack...

Installed a new battery and have not had a problem yet. Just thought id add my 2 cents mate. Good luck.

Jay.

Hi Jay,
Good to see another Z in Oz 👍 Are you in Oz or CA ?
I still believe my problem is starter solenoid contacts, which I will rectify soon, even though it hasn?t let me down since the new battery went in. Mine always started when cold / cool, but not when hot.
Cheers,

Russell.

[Zedder94]

Hi Jay,
Good to see another Z in Oz 👍 Are you in Oz or CA ?
I still believe my problem is starter solenoid contacts, which I will rectify soon, even though it hasn?t let me down since the new battery went in. Mine always started when cold / cool, but not when hot.
Cheers,

Russell.

Russ, I live in CA but grew up in country VIC where the ZR1 is located, my father has it and will be enjoying it as soon as Rego is done.

I fear that the contacts are part of my problem too, but for the moment its working fine. I never had a problem starting it either hot or cold when i had it in CA. Anyway, anything can be fixed right?

Where are you located mate?

Jay.

[Ozruss90]

Russ, I live in CA but grew up in country VIC where the ZR1 is located, my father has it and will be enjoying it as soon as Rego is done.

I fear that the contacts are part of my problem too, but for the moment its working fine. I never had a problem starting it either hot or cold when i had it in CA. Anyway, anything can be fixed right?

Where are you located mate?

Jay.

Hi Jay,

I?m in Shepparton, Vic
I will be contacting Gerry?s Gaskets soon to get what l need to remove the plenum and sort the suspected problem solenoid contacts.
Will you dad have the Z sorted in time for the Corvette Nationals held in Ballarat at the end of March. Would be good to catch up with him as l will be there with my Z.

Cheers,
From the Mexican state of Victoria, Down Under
Russell.

[Zedder94]

Russell, Dad is located in Wangaratta, not too far huh! Small world!

He will have it rego'd by then for sure. I will word him up and you guys should definitely meet up.

[Starman]

I got caught twice by this earlier this year. Believe it was oxidation on ignition switch contacts or just dummy me not pushing the key in far enough. If it happens again, look for the security light blinking. That will kill the starter circuit.


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[V10tt]

Russell, did you have the original battery checked at the auto parts store for voltage and cranking amps?

[Starman]

Got me again two weeks ago, pulling CTSY fuse resets alarm and presto the car starts. Somehow triggering VATS with no audible alarm.


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[dredgeguy]

Had my starter rebuilt by my Wazoo brothers during maintenance day. It was overdue and did it just in time, she would not have lasted much longer!

[phrogs]

I see no more rebuild kits on the market that's awesome!

[-=Jeff=-]

I see no more rebuild kits on the market that's awesome!


I was just going to ask that

[Young1]

I file off the carbon tracks to shiny copper and reinstall. Good for another 35,000 miles.

[DRM500RUBYZR-1]

I file off the carbon tracks to shiny copper and reinstall. Good for another 35,000 miles.

:thumbsup: What he said!!!

:cheers:
Marty

[Ozruss90]

Russell, did you have the original battery checked at the auto parts store for voltage and cranking amps?

FYI. I started this thread over 2 years ago. Couldn?t get a solenoid rebuild kit at the time, within a timely timeframe, so I put a new/remanufactured starter in it. Never had a cranking issue with it after that. Been fine for the last 2 years.
I did throw a new battery in prior to the new starter and that helped with extra amperage but didn?t fix the problem, which was solenoid contacts worn, in the end.