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when it is cold out- (below 50*F) I have to press the gas pedal to the floor - hold for a second or two-release the pedal- then start it- sometimes i have to do that twice to get it to fire up-
if it gets really cold, (below 40-especially W/Fog) it starts as mentioned above but idles way lopy like the whole engine is out of whack like an unbalanced washing machine- if i manage to get it to warm up like that then it levels out and runs like a champ-?
any ideas?
is it a temp sensor or auto choke thing? is gas not getting to the carb on start up- improper float level?
I am assuming that you have a carb fuel system. When it gets colder outside, it is normal to press the gas pedal, and even pump the pedal a few times, to set the choke and the fast idle cam on the carb. It may run lopy for a few minutes but it shold level out.
Carb. engines are a whole new ballgame compared to fuel injected engines.
You didn't sayif you had an electric choke or an engine heat choke assembly. If you have an eletric choke, you could have a defective heating unit in the assembly. If your not sure how to tell I can give you some help. Let me know.
i'm not sure what kind of choke it is, i,ve been trying to figure it out, there is no choke pull ****-
i only know harley's so that is my engine reference point- i am still learning about cars and this van is my first big vehicle-
i looked all over the carb and couldnt find a lever or cable that would indicate a choke-
how do i tell if it has an electric choke? it would make sense theres a faulty temp sensor, since it starts up perfectly first try when warm or in the sun for a few hours-
its a
1978 Ford Truck E100 1/2 ton Van 5.8L 2BL Windsor OHV 8cyl
VIN: E14HHBH5624
As a heads up I have a 78 E150, and on mine, it's three presses on the gas, then let up, and it will firea right up without any further assistance. Just have to fdeather the throttle after it starts to keep it running until it warms up, but that's because the choke is a bit messed up on mine. Might want to give it a shot.
Well it should be fairly trivial to convert to a manual choke, which could help. Certainly more reliable, but then it's extra stuff you still have to mess with each time you start it.
Should be able to pickup a manual choke kit at the local auto parts store. It's generally as simple as locating where you want the slide lever, drilling a hole for it and mounting it, then at the carb end, disconnect the electric choke actuator from the choke and hook up the manual end in it's place, then mount the casing for the manual to the carb or intake or something and you're done. Should be a 20 minute install or so.
mine knocks only when i accelerate slowly at highway speeds- between 50 and 80 mph,
if i floor the gas pedal, it doesn't knock, and if i let up on the gas it doesn't knock- but if i accelerate slowly anywhere between 50 and 80mph- it knocks like crazy.
its also getting worse i think-
is it carbon build up or worn parts that make it knock?
choke installed great by the way- Van fires right up now cold or hot-
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