This V6 with carb starts and runs fine. Sometimes between cold and warm acts like it wants to die. And sometimes it does. Other times it it fully warmed up then acts like you turned the key off. Sometimes it does not want to start. Added Heet, replaced coil, checked ign module. Cap,rotor, wires, plugs appear to be Ok. Any thoughts?
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Re: 68 Chevy Celebrity dies whenever it feels like it
No not the magnet, but the coil of wire that it inductes into when it passes, this tells the ignition module to fire the coil. Yes these fail all the time, they are usually ok until they get hot then then go "open"
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EFI or CARB
we need this fact.
if carb , and you did a tune up.?
then the carb has issues (99% dirty caused) oldest story on earth.
sound to me, the carb is running leak, hot, just like all old dirty carbs do.
Vapor lock again! Make sure the fuel lines are away from hot surfaces, or insulated.
Also, when it warms up, the automatic choke turns off, and the idle setting has to be set to run at that temp. There will be idle jets, maybe two, and idle stop setting for the linkage.
Low pressure from fuel pump, when the pump is cold the pressure increases, as it warms up the pressure drops (this happens in a pump that is going out) the normal pressure should be at 40 with the key on and engine not running, when started the pressure should stay around 36, any less it won't idle and may run as long as you hold the pedal down. The injectors are opened electronicaly, so as long as there is fuel flow the engine gets fuel to run.So check the fuel pump, soundslike you need a new one
Good chance it is not getting fuel, or enough fuel. When the rig is cold, the choke is closed. As it warms up, the choke opens. If the metering jets inside the carb are dirty, they may not be letting enough fuel into the barrels. You could also have a vac leak that is masked by the choke until the engine warms up.
You need to find oput what you loose when the truck shuts off, all you need is Air, Fuel , and spark to run one of the three are droppuig out when it stalls and will not run. Chech the carb for gas it sounds like you have a weak fuel pump.
reach to the underside of your egr valve and feel to see if the diaphragm moves as it warms up. if not you may need to replace it. be careful not to bur yourself though, the engine and egr can get very hot very quickly