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Ford 390 V8 shuts off when shifting gears(3spd), idles ok,can someone explain this? or what to check
June 8, 2014
with hood open have somebody watch engine for lifting on left side ,when letting clutch out if it raises ,replace left motor mount .check wire connections to make sure they are not strained to point of disconnect when engine moves under load . also gas line for pinching shut .
June 9, 2014
econimizer in carb or idle solonoid or low fuel pressure
sources: 35 years working on fords starting before the 390 motor
June 14, 2014
I have a 68 Mustang with a 289 automatic that is having a simular problem.Idles great but put in gear it dies.
I discovered it had a bad vacuum advance on the distributor...pulled the hose from carb and was able to blow freely into distributor so in gear it was pulling far to great a vacuum leak to run properly.
Hooked it back to the carb,took it loose from vacuum advance and plugged it and car worked fine...idle and in gear.
Maybe you have something simular.....maybe?
Hope this helps
June 24, 2014
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