Stalling when Cold

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May 14, 2009 | 04:27 PM

Lower Deeezy

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Stalling when Cold

what are the main causes for an engine to stall when its cold but not when its warm

my 78 f150 is doing it to me

May 14, 2009 | 05:28 PM

TheTech

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From: daytona beach, florida

that's the nature of a carb to be honest. but you might check vacuum, bad gas, air cleaner, idle mixture.

May 14, 2009 | 06:28 PM

montana_highboy

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From: Big Sky Country

Check to make sure the choke is operational.

May 14, 2009 | 06:29 PM

Jermafenser

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From: MD

Tune your carburetor. Choke may be maladjusted.

I can start mine at 20F with only one stroke.

May 14, 2009 | 06:32 PM

TheTech

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From: daytona beach, florida

how do you adjust the choke on these?
motorcycles are a bit different im assuming which is what im used to

May 14, 2009 | 06:34 PM

Jermafenser

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From: MD

First you're going to need to check the choke pulloff diaphragm to make sure it has the ability to hold vacuum. If it doesn't, replace it.

Then you need to check your choke pulloff. After that, the fast idle cam be aligned properly. Then the choke should be set to factory specs.

Do a search here on in the fuel forum - it's been covered recently a few times.

May 14, 2009 | 07:01 PM

fmc400

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From: Austin, TX

https://www.ford-trucks.com/forums/8...ml#post6939116

https://www.ford-trucks.com/forums/7...ml#post6422219

Enjoy!

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May 14, 2009 | 07:40 PM

Lower Deeezy

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thanks alot guys

May 14, 2009 | 08:27 PM

#10

shanes66charger

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easiest thing to do Is just install a manual choke and let the engine WARM up before hitting the road.

May 14, 2009 | 09:37 PM

#11

shadowviper12345

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From: North Carolina

could be a bad thermostat, easily tested just put a vacuum on it and see if it moves

May 14, 2009 | 11:17 PM

#12

79FordBlake

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From: Wingo, Ky

Quote:

Originally Posted by shanes66charger

easiest thing to do Is just install a manual choke and let the engine WARM up before hitting the road.

I prefer a manual choke also. I like to control engine speed myself when its warming up.

May 14, 2009 | 11:17 PM

#13

460swmo

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I got to agree with Jermafenser, I set my Motorcraft 2150 to work with all the factory parts and adjusted properly including the choke pull off, the choke itself, and the duct from the exaust manifold to the air intake, all intact and working properly I can start my truck even below zero after one pump to set the choke, it starts right up and fast idles on it's own perfectly.