1990 sc Not start after Scan tool test failed

[Valter]

Hi everyone. I was running a test with the Actron Scan Tool CP9110 on my SC, the Output Switch Test to be precise without disconnected the vacuum suply hose from the speed control servo ( I have not idea where they are), so the tool was disconnected during the test accidentally and the SC now does not start ( before it did whit no problems).Have anyone any suggestions to fix it? Please I need help to keep my boy alive. Thanks

 

[74 Harley]

Try a hard reset. This is disconnecting both battery cables and tieing them together ( zip tie) for 10 minutes. This should eliminate any codes and reset all the computer modules.

 

[Valter]

Hello. Thanks for your advice but it didn't worked. You can hear a clank when you turn on the key but anything else. So not start at all.

 

[74 Harley]

Ok time to get under the hood. Locate the starter solenoid, should be on the right fender. Remove the small wire on the "s" post. Now with a jumper wire go from the positive cable connection to the s post. Engine should crank over. If not check the battery charge level, and make sure the cables are clean and tight.
Still nothing? Put a breaker bar on the crank pulley bolt and make sure you can turn the engine. ( Just a little bit is ok). Lastly pull the starter. It could have died....

 

[Valter]

Hi. I took my time but finally I did it. So the engine almost start but it stopped after a few rounds. So the engine not starts and if I try again just the usual clank and some whirring noise but nothing rotate. Any suggestions?

 

[74 Harley]

If the starter clunks then spins you may have worn out teeth on the ring gear. You need to pull the starter and look at the ring gear.