My head just grew four sizes larger...! Thanks for the compliment, but I am
just a regular guy like most guys on this NG.
Without more information it is difficult to even guess the possible causes.
When you say the engine will not turn, do you mean nothing at all happens..?
You also say the problem does not happen all the time..
A number of things could be responsible for that.
(1) Is the battery GOOD, Are the battery terminals clean and tight? Check
battery ground cable that connects to the body.
(2.) Is the transmission all the way, fully in Neutral or Park. ***That one
used to get me regularly.***
(3.) Next time you have a no start, turn on the Head Lights and Radio,and
try to start again. What happens to the radio and lights. Does the light
'dim/go out' or not, does the radio cut out or not. If the lights does not
dim, or the radio does not cut out, no power is reaching the starter, so
look for a loose wire going to the starter, starter relay, and or ignition
switch on steering column. If the Starter was bad/seized the lights would
literally go out. You have start sometimes, so the starter is not seized,
maybe defective but not seized
(4.) Check for a bad/defective starter solenoid, starter relay, as well as
(5.) Check for defective transmission range sensor(long shot). The range
sensor is used to tell the PCM the transmission is in Neutral or Park.
These are the areas I would start checking.
I hope this helps and you get the problem solved soon..
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