On Dec 17 2011, 11:26*pm, "Rob" > wrote:
> sounds like the fuel in the fuel line is bleeding back to the tank during
> the night.
>
> check the pressure at the carb. in the morning after it has sat all night,
>
> "Bob AZ" > wrote in message
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> > My 1986 Chrysler Fifth Avenue takes 4 trys to start in the morning.
> > Simply does not start on the first 3 tries. Starts right up on the 4th
> > try. Starts and runs throughtout the day without problems. Then after
> > sitting all night back to the 4 crank mode.
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> > New plugs and wires, rebuilt carburetor and distributor.
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> > I think it might be the ECM module (Spark Control Computer) but am not
> > sure.
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> > Any input would be appreciated.
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> > Thanks
> > Bob *AZ

if it is the fuel pressure problem, you can just test it by turn on
the key, take it off and turn on again. you can do this a couple of
times to activate the fuel pump for couple of times before cranking.
if the fuel pressure builds up, the car will fire up immediately. if
the car starts immediately, you might have leaky fuel pressure
regulartor, or weak fuel pump. if the car has carburator maybe some of
the jets might be clogged.
ps.: I assume this is a fuel injected/throttle body car. if it has
carburator, that might be totally different story.