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Matt
Matt, Engineer - BEng Hons
Category: Porsche
Satisfied Customers: 20588
Experience:  Mechanical Engineer with 20 years experience in the auto industry, 8 yrs in formula 1 engine testing
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Sebastian, I have a 1971 914 with a 911T meeting tour in it.

Customer Question

Sebastian,I have a 1971 914 with a 911T meeting tour in it. I started the car fine yesterday morning and drove it around. After I washed it, it won't start. The battery is brand new, it clicks and I can hear the power but it won't crank?Costas
Submitted: 1 year ago.
Category: Porsche
Expert:  Matt replied 1 year ago.

Hello

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If the car's not cranking then first check it can turned over by hand so double checking for any mechanical issues

If OK then check that the main battery cables are on tight and the terminals are clean and bright. Do the same for the engine / gearbox earth strap.
Then follow the main positive lead back to the engine and down to the starter motor, and check the connection at this end as well.

There should also be a small wire to the motor which should have 12V when you're turning the ignition switch to crank. If the 12V isn't there, check back along this wire for damage to the insulation or corroded connections

This 12V feed comes directly from the ignition switch so this may be faulty and need replacing

Check the resistance of the main positive lead that runs down to the motor as anything more than a few ohms and it should be replaced

Don't forget to try a jump start from another car / battery as its possible the battery is flat, if you have a voltmeter a healthy battery should read 12.7+V

one other thing to consider is that the immobiliser is faulty and preventing the starter from being enabled - however if the dash / ignition lights are on then this usually means that its off

If this is all OK then its possible the car needs a new starter motor

Expert:  Matt replied 1 year ago.

Hi

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