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Old 10-21-2005, 19:01   #1 (permalink)
1CAR2MANY
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What now?

Hi, I have an 85 Ford Crown Vic.I have had it for about 4 years now.It
doesn't seem to want to run when in cold/damp weather.It has a 302 and
has a carb...last year I believe with a carb(canada).Car has about
100000 miles on it.

This only happens when it is cold/damp.First start of the
day...Starts fine,fast idle, runs fine for about 2-3 mins.Idle drops
down, engine starts chugging. Seems to run rich.It will only stay
running if you give it gas.It will stall after about 5-10 mins of
running.If I let it sit for 5 mins and restart it it runs fine.Runs
great otherwise.

Over the past year I have:
Replaced the electric choke(heat tube is still there as well)
Complete tuneup (plugs,wires,cap,rotor,filters all Motorcraft parts)
Replaced the coil
Replaced the module
Replaced the pickup in the distributor
Replaced the power valve in the carb
Replaced the EGR
No Vacuum leaks
Set up the choke as per manual and it functions fine
Timing is on as well as the air/fuel mixture

Any ideas?

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Old 10-21-2005, 22:02   #2 (permalink)
Jim Warman
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Re: What now?

Does this have the Variable Venturi carb?


"1CAR2MANY" <jeffandcary@hotmail-dot-com.no-spam.invalid> wrote in message
news:Od6dnTrf2JoTC8TeRVn_vA@giganews.com...
> Hi, I have an 85 Ford Crown Vic.I have had it for about 4 years now.It
> doesn't seem to want to run when in cold/damp weather.It has a 302 and
> has a carb...last year I believe with a carb(canada).Car has about
> 100000 miles on it.
>
> This only happens when it is cold/damp.First start of the
> day...Starts fine,fast idle, runs fine for about 2-3 mins.Idle drops
> down, engine starts chugging. Seems to run rich.It will only stay
> running if you give it gas.It will stall after about 5-10 mins of
> running.If I let it sit for 5 mins and restart it it runs fine.Runs
> great otherwise.
>
> Over the past year I have:
> Replaced the electric choke(heat tube is still there as well)
> Complete tuneup (plugs,wires,cap,rotor,filters all Motorcraft parts)
> Replaced the coil
> Replaced the module
> Replaced the pickup in the distributor
> Replaced the power valve in the carb
> Replaced the EGR
> No Vacuum leaks
> Set up the choke as per manual and it functions fine
> Timing is on as well as the air/fuel mixture
>
> Any ideas?
>



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Old 10-22-2005, 03:01   #3 (permalink)
tom
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Posts: n/a
Re: What now?

yea, it sure sounds that way doesn't it Jim??
"Jim Warman" <mechanic@tenalpsulet.net> wrote in message
news:WKi6f.39427$Io.10254@clgrps13...
> Does this have the Variable Venturi carb?
>
>
> "1CAR2MANY" <jeffandcary@hotmail-dot-com.no-spam.invalid> wrote in message
> news:Od6dnTrf2JoTC8TeRVn_vA@giganews.com...
> > Hi, I have an 85 Ford Crown Vic.I have had it for about 4 years now.It
> > doesn't seem to want to run when in cold/damp weather.It has a 302 and
> > has a carb...last year I believe with a carb(canada).Car has about
> > 100000 miles on it.
> >
> > This only happens when it is cold/damp.First start of the
> > day...Starts fine,fast idle, runs fine for about 2-3 mins.Idle drops
> > down, engine starts chugging. Seems to run rich.It will only stay
> > running if you give it gas.It will stall after about 5-10 mins of
> > running.If I let it sit for 5 mins and restart it it runs fine.Runs
> > great otherwise.
> >
> > Over the past year I have:
> > Replaced the electric choke(heat tube is still there as well)
> > Complete tuneup (plugs,wires,cap,rotor,filters all Motorcraft parts)
> > Replaced the coil
> > Replaced the module
> > Replaced the pickup in the distributor
> > Replaced the power valve in the carb
> > Replaced the EGR
> > No Vacuum leaks
> > Set up the choke as per manual and it functions fine
> > Timing is on as well as the air/fuel mixture
> >
> > Any ideas?
> >

>
>



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Old 10-22-2005, 10:01   #4 (permalink)
Shoe Salesman
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Posts: n/a
Re: What now?


"tom" <tjctransport@optonline.net> wrote in message
news:ykn6f.13967$1X1.10343@fe12.lga...
> yea, it sure sounds that way doesn't it Jim??
> "Jim Warman" <mechanic@tenalpsulet.net> wrote in message
> news:WKi6f.39427$Io.10254@clgrps13...
>> Does this have the Variable Venturi carb?
>>

If memory serves.......probably a sticking choke inrichment thingy. Man its
been a LONG time since I've seen aVV carb. (not complaining) ha!


>> "1CAR2MANY" <jeffandcary@hotmail-dot-com.no-spam.invalid> wrote in
>> message
>> news:Od6dnTrf2JoTC8TeRVn_vA@giganews.com...
>> > Hi, I have an 85 Ford Crown Vic.I have had it for about 4 years now.It
>> > doesn't seem to want to run when in cold/damp weather.It has a 302 and
>> > has a carb...last year I believe with a carb(canada).Car has about
>> > 100000 miles on it.
>> >
>> > This only happens when it is cold/damp.First start of the
>> > day...Starts fine,fast idle, runs fine for about 2-3 mins.Idle drops
>> > down, engine starts chugging. Seems to run rich.It will only stay
>> > running if you give it gas.It will stall after about 5-10 mins of
>> > running.If I let it sit for 5 mins and restart it it runs fine.Runs
>> > great otherwise.
>> >
>> > Over the past year I have:
>> > Replaced the electric choke(heat tube is still there as well)
>> > Complete tuneup (plugs,wires,cap,rotor,filters all Motorcraft parts)
>> > Replaced the coil
>> > Replaced the module
>> > Replaced the pickup in the distributor
>> > Replaced the power valve in the carb
>> > Replaced the EGR
>> > No Vacuum leaks
>> > Set up the choke as per manual and it functions fine
>> > Timing is on as well as the air/fuel mixture
>> >
>> > Any ideas?
>> >

>>
>>

>
>



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Old 10-22-2005, 11:01   #5 (permalink)
Jim Warman
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Posts: n/a
Re: What now?

After re-reading it, I'm starting to lean towards carb icing...maybe a bad
heat riser valve or inoperative intake air stove... maybe a
combination....When he let's it sit for 5 minutes and then it runs fine
sounds like about enough time for the carb to thaw out...



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Old 10-22-2005, 11:01   #6 (permalink)
Shoe Salesman
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Re: What now?


"Jim Warman" <mechanic@tenalpsulet.net> wrote in message
news:77u6f.43217$S4.156@edtnps84...
> After re-reading it, I'm starting to lean towards carb icing...maybe a
> bad
> heat riser valve or inoperative intake air stove... maybe a
> combination....When he let's it sit for 5 minutes and then it runs fine
> sounds like about enough time for the carb to thaw out...
>
>

Sounds like the inrichment thing is sticking to me. It simply floods out,
kills it at idle. It heat sokes a little, inrichment lets go, car
runs...thats my GUESS.


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Old 10-24-2005, 02:01   #7 (permalink)
1CAR2MANY
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Posts: n/a
re:What now?

Thanks for your suggestions guys I really appreciate it.No it is not
the infamous Variable Venturi carb.Just a plain old 2bbl motorcraft.
The heat stove is intact.The flapper in the snorkel is working
too.This was one of the first places I looked into.I didn't check the
heat riser though.I'll check the riser and report back.Thanks again
guys.

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