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> No start 1974 2.0, 1974 2.0 will not start after 2 hour drive
zaballosc
post Apr 27 2024, 12:59 PM
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Hi all,

We just drove our 914 to Road America after 2 years of incremental work. Over the past year it has started perfectly, and it did the drive perfectly. It has a new starter that has been working great. We parked for registration, and when we got back to the car it would not crank. Fuel pump is running, electrical is working, but the car is not cranking or starting on a bump start. Any ideas? I checked the relays and relay board connections.

Currently waiting on a tow.
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emerygt350
post Apr 28 2024, 03:11 PM
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I have had that happen back when I just got the car. Very frustrating.

To replace the starter is just removing the left rear wheel and two bolts. Super easy, but do make sure it's not the low voltage to the solenoid issue first. Not much point in worrying about the bump start issue till you get it to turn over. Is it a 74 or later? I don't know anything about the seat belt cut out but I know people have problems with that too.
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Superhawk996
post Apr 28 2024, 03:59 PM
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QUOTE(emerygt350 @ Apr 28 2024, 05:11 PM) *

Not much point in worrying about the bump start issue till you get it to turn over.

Going to have to disagree with you.

When troubleshooting electrical issues it’s always important to understand all the symptoms.

The failure to bump start could be pointing toward a bad engine to transmission ground which could simultaneously affects both the starter and the ECU grounds. Likewise a bad battery negative ground to chassis would prevent both cranking and bump starting.

Just a failure to crank could be excessive voltage drop from ignition switch or it could be the seat belt interlock (assuming that is still in place and not bypassed). In either fails to crank case, it would bump start and run.

Similarly a failure to crank (only) could be a starter or solenoid failure and not wiring related. It would still bump start with a failed stater or solenoid.

Bottom line: all symptoms matter to avoid needlessly replacing parts and wasting time.
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