Help! Electrics and circuit breaker

[Mike K]

Lauren

There isn't a circuit breaker on the starter motor circuit itself . Still sounds like a bad connection somewhere , corrosion on a terminal maybe . The starter motor draws massive amps from the battery , the battery voltage will drop significantly while the starter is turning over .

Try wiggling the solenoid connections e.g., the thick leads on it . You may have to loosen the nuts a bit to wiggle the leads .

Mike

[Richard Farrant]

Hi Lauren,
As Mike says, check battery connections, but also check the connection of the earth lead from battery to chassis, and the earth lead from chassis to engine, these are often overlooked and the biggest sources of problems.