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From: geronimo on 26 Nov 2007 12:59
It used to start on first crank. Then it was always on the second
crank. Now it is on the third crank that it fires up. What should I
check? I am thinking it is going to get worse and worse until NO
start. Seems like it is just not getting gas into the cylinders until
the fourth crank. This only happens when enngine is cold. WHen still
hot it starts first time.
From: C. E. White on 26 Nov 2007 13:07

"geronimo" <Jamesw(a)grandecom.net> wrote in message
news:b62mk3pdcv8e7kcd99tg0krr90bu7ojurv(a)4ax.com...
> It used to start on first crank. Then it was always on the second
> crank. Now it is on the third crank that it fires up. What should
> I
> check? I am thinking it is going to get worse and worse until NO
> start. Seems like it is just not getting gas into the cylinders
> until
> the fourth crank. This only happens when enngine is cold. WHen
> still
> hot it starts first time.

Problems like this are often related to the fuel system not holding
pressure when the car sits for a long time. A mechanic can easily
diagnosis this by hooking up a fuel pressure gauge and letting the car
set overnight. If the pressure is low or zero in the morning, you know
their is a problem in the fuel system. The loss of pressure can be
caused by a leaky fuel injector, a leaky check valve, or a leak
somewhere in the fuel line from the tank to the engine.

A simple test that may give you a clue if this is the problem follows:

Before starting the car, switch the ignition switch from off to run
(but not start) four or five times before actually trying to start the
car. Pause for a two count each time you are in the run position
before switching the car back to off. This will cause the fuel pump to
run briefly each time you switch to run and possibly build up the fuel
system pressure. If the car starts quickly when you actually try to
start the car, it is likely there is a fuel system problem allowing
the pressure to leak down over a long period.

Ed


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