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12-12-2010 01:25 AM #21
Re: PLEASE explain your hard starting
Sounds like a bad starter or bad/dirty solenoid. Could even be the signal wire from the ignition to the starter solenoid. Do you have an aftermarket alarm? sometimes the cheap relays they use to cut the ignition signal can actually weaken the power going to the starter solenoid/relay.
First check and clean all your starter connections and make sure the engine ground strap is clean also.
If that doesn't help you need to pull out a multimeter and compare the voltage at the battery to the voltage at the signal wire for the solenoid when you turn the key to start. Should be close to the battery voltage, if its substantially lower that means there's a problem between the ignition switch to the starter weakening the signal. YOU MUST DISCONNECT the signal wire from the starter for this test so the engine does not crank at all.
You can also jump power from another source directly to the solenoid signal wire and see if the engine cranks any better. This a little dangerous if you don't know your way around the engine.
86 325es (wrecked by careless driver)
87 325 (project for life)
00 540is 6spd (daily driver)
12-13-2010 04:18 AM #22
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