Cold weather issues
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Freshman User
Joined: Dec 2012
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Cold weather issues
Hey everyone I'm having some issues with my truck this winter. It's a 78 f250 4x4 reg cab with a 460 and c6. I have an edelbrock performer intake and a 750 cfm electric choke carb. We've been having temps below freezing for a few weeks now (uncommonly cold here in New Mexico)and the truck runs like crap when it's cold. It hesitates and is way down on power. If I try to accelerate hard it misfires And sounds like it's loading up with fuel. It does this for about 20 minutes then slowly gets back to normal. I've tried letting it run in the driveway until the thermostat opens and it still does the same thing. Over the summer I swapped a 160 thermostat in to help with her running hot and now I'm thinking it's too cold for the winter. Should I throw a 180 degree thermostat back in? Or is there something else I can look at? Thanks.
Cargo Master
Joined: Jul 2005
Posts: 2,313
Likes: 367
From: Kansas
sounds like you need to check to make sure the choke is closed before a cold start...and make sure it is opening correctly as the engine warms up.
if you take the air cleaner lid off, press the accellerator and you should see the choke butterfly close...if not you need to adjust it richer or inspect the linkage for binding...as the engine warms up, it should fully open.
if you take the air cleaner lid off, press the accellerator and you should see the choke butterfly close...if not you need to adjust it richer or inspect the linkage for binding...as the engine warms up, it should fully open.
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