My 99 Ford f150 4.6L will not start when you turn the key. The electrical system is working. The battery has 13 V there is power present to the starter. It will start if i jump power at the solenoid on the firewall. The truck is in park. I removed the starter and took it to NAPA where they tested it and said it was good. It never had any trouble until today after I replaced an oxygen sensor, I am sure that could not have cause the problem. So where should I start. How do I know if the computer thinks the truck is in park or not. How do I check for signal from ignition to starter. Thank you
Feb 22, 2010 at 9:45 PM