HOW TO DO AN ADVANCED SEARCH.

Mon Jul 08, 2013 3:56 pm by Admin


For the benefit of 944Hybrids users there are two search functions available for you to use.
The purpose of this sticky is to explain the "Advanced Search" function because it is much more powerful and is the best choice when researching information.

When you log on to the site a list of options is shown in a line at the top of the page. One option is labelled "Search", use this option (NOT the search box lower down on the right).

After you click on the upper search option, a drop down box appears. At the bottom of this box is a radio button marked "Advanced …

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Not cranking over...

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Not cranking over...

Post  admiralkhole on Sat Apr 20, 2013 7:31 pm

I have power, but I turn the key an nothing happens. Starter is good, everything else has power. I am getting NOTHING when I try to crank it over....the starter doesn't even go *click click click*. Where should I start? Any ideas? I think it was an existing issue before the swap. Help!

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Re: Not cranking over...

Post  87-944S on Sat Apr 20, 2013 7:50 pm

Make sure the engine is well grounded, if it is, try supplying power directly to the starter solenoid to see if it will crank, make sure the car is in neutral.
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Re: Not cranking over...

Post  admiralkhole on Sat Apr 20, 2013 7:55 pm

How should I ground it? I left the oem grounding strap in place and connected to one of the heads. Do I need to connect it to the block? I was told it wouldn't matter. I tried out the starter and everything is fine there.

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Re: Not cranking over...

Post  87-944S on Sat Apr 20, 2013 8:31 pm

Grounding to the head is fine, ensure there is a solid ground to the body as well. I think there is a connector for the starter solenoid wire along the fire wall, near the master cylinder, if so disconnect it, and measure the voltage when you turn the key. I'm not sure if the DME relay is the one that controls voltage to the starter, but there should be a relay that could be checked. Also, these ignition switches are notorious for failing. There are on-line sources for the schematics for these cars, I'd start tracing from the ignition switch. Good luck!
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Re: Not cranking over...

Post  admiralkhole on Sat Apr 20, 2013 8:49 pm

Will do! Thanks for the help, I really appreciate it. I'll post back with results in a little while.

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Re: Not cranking over...

Post  Rich L. on Sat Apr 20, 2013 9:08 pm

Similar problem here today although I was getting a click from the starter. But it wouldn't turn over at all. I measured 12.3 volts across the + and - terminals at the starter. I stuck my battery charger on the battery in "start" mode which bumped the voltage over 13 and it fired right up.

My ground strap is to the block directly above the starter. I had just replaced my alternator as it was charging intermitently at the track last weekend. Once it fired up and ran a little bit everything seems to work normally.

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Re: Not cranking over...

Post  admiralkhole on Sat Apr 20, 2013 9:57 pm

I hooked up the battery charger to my battery and tried turning it over...first I got a loud *thunk* like the solenoid engaged but didn't turn. Sometime when I turn the key it will just get a quiet *click click click* from the starter, others it won't do a thing. I tested the output of the battery after taking the charger off and it read 13.29. I don't know what to do. Maybe the battery is bad. It has a sticker on it with the date of 5/08. The battery also had been sitting for a long time without use...could it have gone bad?

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Re: Not cranking over...

Post  87-944S on Sat Apr 20, 2013 10:32 pm

13.29V is a high voltage for a battery, normal charge voltage is 12.4 - 12.6, was it connected to the car when you measured the voltage? If not, higher voltages can be seen if you measure right away after charger. If it was connected, I can't explain that high of a voltage.
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Re: Not cranking over...

Post  admiralkhole on Sat Apr 20, 2013 10:43 pm

It was measured soon after I took it off the charger. After letting it charge for a while, I took it off and measured the battery every minute or so and noticed a declining voltage. It would drain a few points after just a minute. Tomorrow I will hook up another battery from my other car or truck and see what happens...hopefully I won't be chasing problems anymore.

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Re: Not cranking over...

Post  admiralkhole on Sun Apr 21, 2013 10:30 am

The battery isn't the problem. I have the same thing happen when I switched out batteries. Is all power supposed to go off when in the cranking on position? It just seems I'm not getting enough juice. I replaced the ground cables and got a new battery connector for the power cables.

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Re: Not cranking over...

Post  87-944S on Sun Apr 21, 2013 11:00 am

Certain items will lose power when cranking, make sure your ECM is connected to a power source that is active when cranking. A good choice is the power lead to the old ignition coil.

I am assuming it still does not crank, so I would start at the ignition switch. One of the wires off the black round connector on the ignition switch powers the starter solenoid, or the relay for the solenoid. From the schematics identify this lead, determine if it requires plus 12 or a ground to activate a relay, or if it supplies power directly to the solenoid. Apply power or ground as appropriate to check if it will crank. If it does, get a new ignition switch. If it doesn't, move down the line, testing each component. The most likely issue is the ignition switch or relay, especially since you mentioned this was an issue before the swap. I've replaced a couple of ignition switches on my 944s.
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Re: Not cranking over...

Post  944-LT1 on Sun Apr 21, 2013 11:16 am

What year 944?
What year engine?

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Re: Not cranking over...

Post  admiralkhole on Sun Apr 21, 2013 11:24 am

'83 with an lt1

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Re: Not cranking over...

Post  admiralkhole on Sun Apr 21, 2013 2:44 pm

I just tested all of the leads on the back of the ignition and all of them go to 0 when in the cranking position. Shouldn't the red/black wire send the signal and read 12.xx?

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Re: Not cranking over...

Post  87-944S on Sun Apr 21, 2013 3:50 pm

I just looked at the schematic, red/black is definitely the one that triggers the starter solenoid, there appears to be another one that goes to the radio.


Last edited by 87-944S on Sun Apr 21, 2013 4:03 pm; edited 1 time in total (Reason for editing : more info)
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Re: Not cranking over...

Post  944-LT1 on Sun Apr 21, 2013 4:08 pm

Yeah, pin 50 of the switch should be Black/Red. If there's no +12v there when in crank position, check for 12v at pin 30 which is solid red.

If there's 12v at pin 30, then you're looking at an ignition switch problem.
Jump pin 30 to pin 50 and the solenoid should click.


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Re: Not cranking over...

Post  admiralkhole on Sun Apr 21, 2013 4:46 pm

I jumped the pins and the solenoid engaged with the key on the "run" position. Ignition module bad? I took it apart and there was a small piece of paper inside in the turning mechanism between the key and the module, still, works the same as it did

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Re: Not cranking over...

Post  87-944S on Sun Apr 21, 2013 5:43 pm

Good news is that part is not too expensive, even direct from Porsche. Only $15 from Paragon. Glad you found the problem.
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Re: Not cranking over...

Post  admiralkhole on Sun Apr 21, 2013 5:54 pm

let's hope that's all, I want to crank this thing over! thanks for all the help, it is much appreciated.

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Re: Not cranking over...

Post  admiralkhole on Mon Apr 22, 2013 6:33 pm

The new ignition switch worked! How ever I still have a problem pale

I'm pretty sure it just the battery though tongue

I tried to start it and I heard the starter engage, but not spin. I took it off and tested it, it engaged and spun...so the starter is good. After that I turned the engine over by hand juuuust to be sure. So I think I'm having a voltage drop from the battery...it is 5 years old but it sat for a long time just doing nothing. I'll drop another battery in or try and jump start it and go from there.

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Re: Not cranking over...

Post  admiralkhole on Mon Apr 22, 2013 8:15 pm

Well I got everything hooked back up and tried to fire it up, but it's like the starter isn't getting enough power. It will turn the engine over once and fall flat on it's face. It's like it struggles to turn it over, like it doesn't get enough juice. It's a high torque starter so I would think it wouldn't have any trouble. I tried 2 different batteries, and tried to jump from my truck. Same thing happens. What could it be?

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Re: Not cranking over...

Post  944-LT1 on Mon Apr 22, 2013 8:41 pm

Take all the spark plugs out and try it

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