997 Won't Start Full Power Loss when turning ignition key.
11-10-2018, 10:23 PM
#1
1st Gear
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997 Won't Start Full Power Loss when turning ignition key.
I recently had an issue where the good ol' ground wire that goes to the started almost caught fire. Hot start issue, with the ground wire.
I replaced the ground wire that goes from alternator to started to transmission and replaced the starter. Car started right up on the first try! Drove it around the block came back home parked it turned the car off and wanted to test the issue with the hot start so I tired to start it back up and all of a sudden nothing. All the lights fluttered and it seemed that the started was not getting power. Thought it would of been a bad starter, so I took everything back apart and took the started back to get it tested and all was good with the starter.
Put the starter back in got a new battery and still the same issue total power loss. Figured maybe the Ignition Switch so I replaced that, still not wanting to start. I tried to hook up the computer to it to see if I could read an error but I am unable to because when I turn the key all power is lost and car goes dead. I have to wait a few min then car regains power and all the lights come back on. I am totally lost at this point. Anything else I can check that might of fried because of the bad ground wire?
In addition I did find out that the smaller wire that connects to the starter that goes from the ignition was not putting out the 12v this is why I swapped out the ignition switch. I applied 12v directly to the started and it turned over with no issue. Again any help would be greatly appreciated.
Parts already swapped out for new parts:
Ground Wire that connects alternator and starter to ground by the transmission.
Starter
Battery
Ignition Switch
I replaced the ground wire that goes from alternator to started to transmission and replaced the starter. Car started right up on the first try! Drove it around the block came back home parked it turned the car off and wanted to test the issue with the hot start so I tired to start it back up and all of a sudden nothing. All the lights fluttered and it seemed that the started was not getting power. Thought it would of been a bad starter, so I took everything back apart and took the started back to get it tested and all was good with the starter.
Put the starter back in got a new battery and still the same issue total power loss. Figured maybe the Ignition Switch so I replaced that, still not wanting to start. I tried to hook up the computer to it to see if I could read an error but I am unable to because when I turn the key all power is lost and car goes dead. I have to wait a few min then car regains power and all the lights come back on. I am totally lost at this point. Anything else I can check that might of fried because of the bad ground wire?
In addition I did find out that the smaller wire that connects to the starter that goes from the ignition was not putting out the 12v this is why I swapped out the ignition switch. I applied 12v directly to the started and it turned over with no issue. Again any help would be greatly appreciated.
Parts already swapped out for new parts:
Ground Wire that connects alternator and starter to ground by the transmission.
Starter
Battery
Ignition Switch
11-11-2018, 11:07 AM
#2
RL Community Team
Rennlist Member
Rennlist Member
Check the connection for the negative battery cable to the chassis.
11-11-2018, 11:37 PM
#3
Rennlist Member
Mine did the same thing. It was the clutch interlock switch. Seems to be fairly common.
02-06-2019, 08:02 PM
#4
Track Day
Same problem
Hey, I see this is a relatively new post. I’m having a similar problem with my 2009 997tt cab. Key fob unlocks the door, I get in and insert key and.....nothing. No bells, clicks or dash lights. I can operate anything that doesn’t require the key insertion such as seat adjustment abd radio but windows and top won’t operate. Also interesting that driver’s side window us permanently 2 inches down and steering wheel lock is disengaged.
So, I replaced: battery, ignition switch, both clutch switches and I tried both keys. I can’t use my scanner because it needs the ignition to be on.
I’m at a loss. I’m wondering what your issue ended up being.
Thanks
So, I replaced: battery, ignition switch, both clutch switches and I tried both keys. I can’t use my scanner because it needs the ignition to be on.
I’m at a loss. I’m wondering what your issue ended up being.
Thanks
02-06-2019, 11:24 PM
#5
02-08-2019, 08:50 PM
#6
Rennlist Member
06-08-2021, 04:47 PM
#7
Hey, I see this is a relatively new post. I’m having a similar problem with my 2009 997tt cab. Key fob unlocks the door, I get in and insert key and.....nothing. No bells, clicks or dash lights. I can operate anything that doesn’t require the key insertion such as seat adjustment abd radio but windows and top won’t operate. Also interesting that driver’s side window us permanently 2 inches down and steering wheel lock is disengaged.
So, I replaced: battery, ignition switch, both clutch switches and I tried both keys. I can’t use my scanner because it needs the ignition to be on.
I’m at a loss. I’m wondering what your issue ended up being.
Thanks
So, I replaced: battery, ignition switch, both clutch switches and I tried both keys. I can’t use my scanner because it needs the ignition to be on.
I’m at a loss. I’m wondering what your issue ended up being.
Thanks
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06-09-2021, 09:59 AM
#8
Track Day
I had it trucked over to the dealership where they programmed a new set of keys. That solved the problem. I still have no idea what actually was the issue to begin with.
