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e30/m20 starting problem

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Keyton

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Jan 9, 2002, 12:51:28 PM1/9/02
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My e30 w/ M20 engine recently began exhibiting a strange starting problem.
Whether the engine is cold or warm, it starts up fine... unless it's cold
and doesn't keep running after the first crank. If I let it die after it's
started when cold then it won't start again w/o a LOT of grinding on the
starter (like 30 seconds or so). When it finally does start, it acts
flooded for a second or two and then everything's OK. Even if I turn it
off immediately after this it will start up fine again and again afterwards.

My first thought was the cold start valve going bad, but that wouldn't be it
since it start fine initially would it?


Paul3130

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Jan 9, 2002, 7:14:11 PM1/9/02
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Right. Do a fuel pressure check because it's either the fuel pressure
regulator or the fuel pump.

Unknown

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Jan 10, 2002, 1:58:56 AM1/10/02
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"Keyton" <key...@mindspring.com> wrote:

Dead cold engine likes the cold start assist. If you have to restart
immediately, you are in flooded territory because engine will get
another blast of fuel that it only partially needs. Next time it
stalls right after first start of the day, try depressing accelerator
about three quarters of the way down before you attempt your second
start. Keep it there as you crank and then let off as much as you are
able once it is running so you don't rev cold engine too much.
This will give you some badly needed air, and will NOT give you extra
gas like so many people assume. Let me know if this helps.
Now THE REAL PROBLEM. Why is it stalling after first start?
Check your ignition system, and make sure everything else is
in optimum tune.
Colin

Keyton

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Jan 9, 2002, 11:45:56 PM1/9/02
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<Colin> wrote in message news:3c4a3a03...@news.mindspring.com...

Oh I know why it's stalling after the first start - I'm embarrassed to say
that I've let it stall trying to climb out of the icy parking spot it's in.

I just think it's odd that the first start is fine, but the second one is so
tough (only if I let it stall), then all subsequent starts are fine. I've
tried the second (post stall) starts with no throttle and half throttle with
no difference.


John

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Jan 21, 2002, 9:40:38 AM1/21/02
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On Wed, 09 Jan 2002 17:51:28 GMT, "Keyton" <key...@mindspring.com>
wrote:

Don't understand your last statement.
In cold weather the cold start vale will cut in, providing the
time/temperature switch is OK, for a period of about five to ten
seconds, in order to allow more fuel for easier starting.
If this doesn't answer your query, get back to me by email.
John S. Evelyn

Carsten Juul Jensen

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Jan 21, 2002, 3:18:38 PM1/21/02
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"John" <stu...@sympatico.ca> wrote in message
news:au9o4u0n3jbttc4k8...@4ax.com...

>
> On Wed, 09 Jan 2002 17:51:28 GMT, "Keyton" <key...@mindspring.com>
> wrote:
>
> >My e30 w/ M20 engine recently began exhibiting a strange starting
problem.
> >Whether the engine is cold or warm, it starts up fine... unless it's cold
> >and doesn't keep running after the first crank. If I let it die after
it's
> >started when cold then it won't start again w/o a LOT of grinding on the
> >starter (like 30 seconds or so). When it finally does start, it acts
> >flooded for a second or two and then everything's OK. Even if I turn it
> >off immediately after this it will start up fine again and again
afterwards.
> >
> >My first thought was the cold start valve going bad, but that wouldn't be
it
> >since it start fine initially would it?
> >
Could it be a sticking injector??

/Carsten


Russ Maki

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Jan 23, 2002, 4:41:08 AM1/23/02
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"Carsten Juul Jensen" <remove...@juuljensen.com> wrote in message
news:3c4c780d$0$233$ba62...@nntp03.dk.telia.net...

Sure does sound like it's flooding, eh? Next time you can't get it started,
push the gas pedal halfway to the floor to open the throttle and let some
air in -- then crank it. That'll help get rid of the excess gasoline.

If it's dying out after it fires briefly, could you have a weak spark?
Sounds like you have plenty fuel.

Russ


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