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99 996 wont crank, but can be push started

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YOUR RESEARCH99 996 wont crank, but can be push started

Leading reported evidence

Check voltage at the relay and i was seeing 12v

Performed · outcome unconfirmed

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Performed · outcome unconfirmed · Original poster

Also i checked voltage at the relay and I was seeing 12V when in the on position between pin 30 and 87.

99 996 wont crank, but can be push started
Frequently discussed work

Check 12v across the battery terminals

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Suggestion

Check for 12V across the battery terminals.

99 996 wont crank, but can be push started
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Leading evidence: 'Check voltage at the relay and i was seeing 12v' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check 12v across the battery terminals' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.

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Compare 4 other evidence results

Check voltage at the starter relay

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Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

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Performed · outcome unconfirmed

Okay, you have 12V on the Y-cable at the starter, and you have checked the voltage at the starter relay.

99 996 wont crank, but can be push started

Test no matter what you think

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Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

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Performed · outcome unconfirmed

Again as mentioned above, Take your battery out and have it tested, no matter what you think, it's best to illuminate that first, then ignition switch next starter.

99 996 wont crank, but can be push started

Test under a normal cold crank load

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Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

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Performed · outcome unconfirmed

First things first, get the battery tested under a normal cold crank load.

99 996 wont crank, but can be push started

Check 12v across the battery terminals

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Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

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Suggestion

Check for 12V across the battery terminals.

99 996 wont crank, but can be push started
Frequently discussed actions (10)

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Check 12v across the battery terminals

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Suggestion

Check for 12V across the battery terminals.

99 996 wont crank, but can be push started

Check engine ground wire

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Suggestion

Check your engine ground wire for attachment and corrosion.

99 996 wont crank, but can be push started

Check ground cable connection

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Suggestion

Have you checked the ground cable connection to the chassis to make sure it is clean and tight?

99 996 wont crank, but can be push started

Check starter relay

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Suggestion

If not, check the starter relay.

99 996 wont crank, but can be push started

Check voltage at the relay and i was seeing 12v

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Performed · outcome unconfirmed · Original poster

Also i checked voltage at the relay and I was seeing 12V when in the on position between pin 30 and 87.

99 996 wont crank, but can be push started

Check voltage at the starter relay

No successful repair reported for this finding.

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Performed · outcome unconfirmed

Okay, you have 12V on the Y-cable at the starter, and you have checked the voltage at the starter relay.

99 996 wont crank, but can be push started

Replace both

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Suggestion

relay and replace both.

99 996 wont crank, but can be push started

Test before taking things apart and removing the starter

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Suggestion · Original poster

What else should I test before taking things apart and removing the starter?

99 996 wont crank, but can be push started

Test but i dont think its the issue

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Suggestion · Original poster

I could take the battery to be tested but I dont think its the issue.

99 996 wont crank, but can be push started

Test no matter what you think

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Performed · outcome unconfirmed

Again as mentioned above, Take your battery out and have it tested, no matter what you think, it's best to illuminate that first, then ignition switch next starter.

99 996 wont crank, but can be push started
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Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.

17 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

  • Rennlist: 1 discussions

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1 acknowledgements have no verified action link; they do not establish a repair result.

Outcome without a verified action link

Also a quick search at the time showed issues that these have with the clutch pedal switch, but I tired jumping the switch and it didn't work either.

No unique explicit quoted action; no causal link assigned

Generation: 20261026T174436Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Hey guys, the other day I went to start my 996 and it would not crank. Turn the key and nothing, no noise from the starter or anything. I was able to get it started by having some friends help my push start it since its a manual, so I don't think its an immobilizer issue. Also a quick search at the time showed issues that these have with the clutch pedal switch, but I tired jumping the switch and it didn't work either. The car isn't giving me any codes when I scan it and the battery is less than a year old. Where should I start to figure this out?

POST 2Original post

Are you getting 12V to the starter? 12V at the starter solenoid? If so, time for a new starter. If not, check the starter relay.

POST 3Original post

Don't let the "I've got a new battery" thing fool you. Brand new batteries that sit up unused can create internal shorts that cause premature failure. First things first, get the battery tested under a normal cold crank load. Then take TexSquirrel's advice and work from there. There are many links in the chain that will need to be tested.

POST 4 / ORIGINAL POSTEROriginal post

How should I test the voltage at the starter? Can I place leads on the large wire going to the starter with the key in the on position or while trying to crank?

POST 5Original post

The easiest is to get another car to attempt jump start at the engine bay. If that works, you may have a battery issue. If that doesn't work, you need to go to the rear relay panel, unplug the start lock relay and check if you get +12v on pin 30 when you crank. Check out this post #46 here .

POST 6Original post

Start with checking for 12V at the jump start terminal in the engine bay. Should be 12V hot all the time. Check for 12V across the battery terminals. Check your engine ground wire for attachment and corrosion.

POST 7Original post

Quotes source post: 15361976

Do the headlights work or the horn? If not, then most likely battery...nobody ever wants to believe it's the battery when that is the easiest to troubleshoot.

POST 8Original post

Quotes source post: 15362140

^^ This ^^ especially if you�ve had any humid/rainy weather...

POST 9Original post

Quotes source post: 15362110

To test the voltage at the starter: Take the positive lead of your multi tester and tape it to a section of fishing rod or similar and guide it back to the starter terminals. You should get voltage at terminal 36 at all times, if so then get someone to turn ignition switch while you hold probe to the #50 terminal at the back of starter. There should be 12 volts there when you turn ignition switch to the start position. If you have voltage in both instances your starter is faulty. If you have no voltage at terminal 50, your best bet is to buy both an ignition switch and start relay and replace both. Hopefully there are no signs of rodents in your ride.

POST 10 / ORIGINAL POSTEROriginal post

Quotes source post: 15369240

I tired this but was not sure what I was seeing. When touching the terminals at the starter and touching ground I was reading 0 volts, even when someone cranked. But If i touched the positive terminal in the engine compartment I would read 12V regardless if the key was in the ignition or if the car was being started. Also i checked voltage at the relay and I was seeing 12V when in the on position between pin 30 and 87. I havent checked this with the key in the start position. I wanted to add that I am getting 12V at the battery and at the engine bay terminals. I could take the battery to be tested but I dont think its the issue. I also tried jumping it with the terminals in the engine bay with my other car and no luck either. No cranking at all. Also I dont feel the starter relay click really when the key is in the on position or when the key is start position.

POST 11Original post

It's tight and tricky to see back to the starter. Are you sure you made good contact at both pins? Again as mentioned above, Take your battery out and have it tested, no matter what you think, it's best to illuminate that first, then ignition switch next starter.

POST 12Original post

Quotes source post: 15375028

You can also try this: take the start relay out of the relay panel and install jumper between pin 87 and 30. Then use your key and try to turn over the engine. let us know what you find.....

POST 13Original post

Sounds like your Y-cable is bad. If you have 12V at the engine bay terminal, but not at the starter terminals, then the Y-cable is broken. #21 here http://www.autoatlanta.com/porsche-p...section=902-05

POST 14 / ORIGINAL POSTEROriginal post

Quotes source post: 15376105

That diagram helped alot. I learned that the y cable connection is covered on the starter, so I was touching on the other terminals on the starter. When I uncovered and tested it I am getting 12V as it should. What else should I test before taking things apart and removing the starter?

POST 15Original post

Okay, you have 12V on the Y-cable at the starter, and you have checked the voltage at the starter relay. If you have someone turn the key to start, then you should have 12V at the starter solenoid terminal (the little terminal on the starter). If the starter solenoid does not click or kick the starter, then the starter solenoid is faulty. You can get a new Bosch starter on Amazon. Do not try a re-manned starter. They don't last very long.

POST 16Original post

Have you checked the ground cable connection to the chassis to make sure it is clean and tight? That's the first thing I would try.

POST 17 / ORIGINAL POSTEROriginal post

Hey guys, just wanted to follow up, it ended up being the starter relay. Car is running again. Thanks again for the help.

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