What is the tach doing? If it is flicking up and down in time with the
stumbling it is an ignition LT fault. If the ignition warning light is
flicking on and off too it is a problem with the ignition switch or
plug/socket near it.
Try putting a timing light on the car positioned where you can see it and
watch the flashing. Does it get erratoic with the misfire? If so it is an
HT problem.
Does pulling out the choke do anything? If the problem reduces it could be
a carb problem.
----- Original Message -----
From: "Scott Allen" <scottinarl@hotmail.com>
To: <mgs@autox.team.net>
Sent: Sunday, April 14, 2002 2:20 AM
Subject: Stumblin' BGT
> Here's the scenario(s): car's warm, choke is all the way in. I go and
fire
> her up and run her at low speed in the neighborhood to do some errands.
> After some five minutes, the car stumbles, loses power, backfires a bit
and
> dies. I fire her up again and she starts but the rpms get to 1500 or so
and
> she dies again. I hop out, and disconnect the fuel line to see if I have
> fuel when the ignition is on, (I do) I then pull the dizzy cap to check
the
> cap and rotor, (had a rotor go out on me once) and they're fine. I then
> pull the battery cover and check the charge on the battery, (in case the
alt
> went bad) and I've got 12.8 volts.
>
> I then hop in the car and try and start her and after stumbling a bit the
> rpms go to 3k or so, and she's off...
>
> So I'm scratching me head, and decide to take her out on the main drag
near
> the house to get her above 55mph, and once again after five minutes or so
> she starts losing power, stumbles and backfires like she's going to die.
I
> pull off but she never quite dies, and I put the accelerator to the floor.
> Sure enough, she stumbles a bit, coughs, and then the rpms go to 3k or so
> and we're off again.
>
> I get home without incident.
>
> So I'm wondering were to start. I'm going to check the points and
condenser
> on the morrow regardless, but like I said I'm wondering if this has
happened
> to anyone else.
>
> Oh yeah, I replaced the coil 7k ago.
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