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07-15-2011, 01:14 AM | #1 |
Registered User
Join Date: Jul 2004
Location: Florida
Posts: 80
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sbc 400 stalling out need HELP
chevy 1976 truck. Im having a heck of a time.
Im stumped on this. idles fine at start up, drive it about 3 mins down the road and if u let off the gas at a stop light it will stall out. Start it back up with gas pedal down, it will stay running if u hold the gas pedal down. other wise it will stall out. sometimes it will drive ok and then start to spit and kick. Also if u let it set and idle for say 10 mins, all the sudden the motor will hesitate and shake then dead. Fuel tank is good/clean, lines are clear, new mech. fuel pump, new fuel filter, new carb. and mounting gaskest. Cant find any vacuum leaks. replaced all rubber hoses. I dont think its vapor locking cause if i open the gas cap when it acts up nothing changes. And i got 10 psi of fuel pressure all the time no change. ANY HELP GUYS?? |
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