Question about 2003 Toyota Tundra
Starts on it's own with no key in ignition
Posted by Anonymous on
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Posted on Jan 02, 2017
It sounds like you have a bad key-transponder ECU. It should still be under watrranty. This is a known problem, and a bulletin has been distruiibuted to address this issue.
Posted on Mar 23, 2009
Welcome to FixYa!
You need to replace the starter solenoid contacts, or the starter itself.
Note that the starter is UNDER the intake manifold. This is a VERY difficult job, and is not recommended to those who do not have sufficient automotive experience.
If you DO remove the intake, you MUST replace the intake manifold gaskets, or your engine will not run properly, due to air leaks at the intake mating surfaces.
Posted on Sep 12, 2009
We would suggest that you look at the wiring connector under the bed, that feeds the taillamps.
You will probably find a coroded wire in the connector. If the 3rd brake lamp works, all of the fuses and switches are good.
Posted on Dec 25, 2009
Testimonial: "All connectors were fine. It ended up being that both brake light blubs blew at the same time. Thanks"
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