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In Reply to: starter circuit problems posted by Korby on April 28, 2002 at 01:19:13:
My 85 735 doesn't engage the starter. I am able to get it running by turning the key 'on' and jumping power to the contact on the starter where the small wire plugs in (to get the starter to crank). I have been browsing the archives and I take it there are a few suspects here, including the ignition switch and a couple of relays. I'm not familiar with the relays in the car, but I'm willing to learn and I've got a test light and a multi-meter. Can anyone walk me through some troubleshooting steps?
I suspect the switch because I experienced difficulty in turning to the start position a day or so before it stopped working. If it's the switch, I'd appreciate any ideas on rigging up a temporary push-button switch until I can track down parts and fix it right.
I just got done R&R the head, so I might have bumped something. But it started fine for four days afterwards, so it may just be coincidence, or maybe related to sitting for 3 weeks while the head was being serviced.
199,601 miles. Will it make 200,000?!
Any help appreciated. Thanks in advance!
Korby
Yes sounds like ignition switch, inside there are three sets of contacts horse-shoe shaped if they wear through they can cause this problem, switch can be removed and repaired easily.
Other problem I once had was sticking solenoid on starter.
other problem could be start inhibitor relay for auto transmision under dash, car will start when you do as you say, but if relay is not working no voltage to terminal therfore no start.
You can pull ignition switch plug and bridge contacts as a tempoary fix if you have a wiring diagram.