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, Fri, 28 Jul 2006 00:08:36
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As suggested, engine heat build up after long run is affecting a component within the start wiring...the good news there are only two locations which can cause this.
Location 1: Ignition Switch, located just above the catalytic converter where it can get hot....
Location 2: Starter Motor itself
Wiring Diagram is very straight forward and can be dianosed easily which of the two components is the faulty one.
Test #1...determine if it is the starter motor or the ignition switch
There are two wires running to the starter...a large red cable which comes directly from the battery and is ALWAYS POWERED WITH 12VDC and MUST be treated with respect...there is a lot of power there and you need to keep away from that terminal....the other smaller terminal is a Yellow wire which gets its power from the ignition switch (+12VDC) every time you turn the switch to the start position, only for the amount of time that you are holding the key in start position....if the 12VDC is missing on this yellow wire when the engine is hot and the car will not start then the problem is the ignition electrical switch and it will need replacement. If the 12 volts is there when the car will not start then problem is the starter motor, most likely the internal starter solenoid coil which is opening up with heat. My guess, if I had to...is the ignition electrical switch needs replacement...only beacause it takes some time for this to heat up from the heat of the catalytic converter located under the car...
The ignition switch wires of interest are the grey wire (always 12VDC directly from the battery) and the yellow/red wire which is runs directly to the starter motor terminal (the wire changes to yellow as it goes through an electrical connector on the firewall).
If you want to test...My suggestion is:
Have a voltmeter capable of reading 12VDC ready
Disconnect the battery
Attach an additional "test" wire to the yellow starter terminal for use later when the engine heats up and will not start. Protect the loose end of the wire from shorting to anything
Reconnect the battery and run the car...after an hour..stop and try to restart..if it does not..then measure the voltage between the test wire and the car body while trying to start...if 12VDC is not there then it is the ignition switch....
posted by 141.152.14...
, Fri, 28 Jul 2006 00:08:36
, Fri, 28 Jul 2006 10:25:35, Fri, 28 Jul 2006 11:51:48
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