Question about 2005 Toyota Highlander
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Posted on Jan 02, 2017
SOURCE: Car won't crank
Initially, it might be the starting solenoid or ignition switch.
A backgrounder on the starter system. The starter system is initiated at the ignition switch when the key is turned to start. At this point, the ignition switch then provides +12VDC to a starter relay (if the vehicle has got one) but more often straight to the starting solenoid. The relay is but a remote switch with slightly higher amperage capacity. The starter relay then engages and supplies +12VDC to the staring solenoid. The starting solenoid then performs two (2) functions. It provides the switching action (hundreds amps) from the battery heavy cable to the actual starter motor. The solenoid likewise pushes a small pinion gear along the shaft of the starter motor to engage the ring gear. The ring gear is of course on the edge of the flywheel which in turn is attached to the crankshaft.
Starter system problems could be corrected by:
1. check battery, battery cables and connections;
2. charge the battery if required;
3. clean brushes and guides of brush holders of the starter motor;
4. clean the commutator and commutator segments;
5. check/replace the armature or field coils if determined to be defective;
6. in some extreme cases it could be the drive pinion or the flywheel gear ring is defective.
7. often it is the big switch that the solenoid activates that looses contacts causing no +12V internally to the motor.
8. Most likely would be a defective starter relay or the IGN switch itself. Relative to this, you might try and check the connectors/terminals and electrical joints.
In the picture below, the upper portion is the starter solenoid while the one below it is the actual starter.
Given the amount of work to overhaul a starter, you might consider just replacing it.
Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.
Good luck and kind regards.
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Posted on Jun 13, 2008
SOURCE: 1994 buick lesabre
Run a self test on the computer for any trouble codes that might be stored that will lead us to the problem, Kragen auto and others will do this for free. get back to me on this thread with those codes.
Posted on Oct 01, 2008
It sounds like the battery don't have the cranking amps needed to turn the engine over fast enough. Even though it is starting, soon it will drain more and won't start.
Posted on Apr 16, 2010
Testimonial: "thanks for your advice it was very useful i had a auto parts place tell me that the battery in the car wasnt the one that belonged in the car "
Most likely it is a Starter Solenoid or ignition switch if starter turns but motor does not crank the bendix may not be kicking in on the starter even if it is turning also check flywheel for broken teeth.....Good Luck
Posted on Jul 07, 2010
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