302 random misses and hesitations
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New User
Joined: Jan 2011
Posts: 1
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302 random misses and hesitations
1981 302, 2 bbl, engine rebuilt about 10K ago. Ran great, but now is missing occasionally at idle and hesitates badly on more than gentle acceleration.
New plugs, wires, rotors, cap, timing 10 degrees btdc (by scope), good spark at all plugs. Throttle body cleaned out with carb cleaner.
Can't find any vacuum leak, vac advance seems to work (tried running with vac hose disconnected from distributor and line plugged. That was ugly.
New fuel pump, filters, and fuel lines. Changed fuel in tank, the clear fuel filter is full when throttled up.
Open for suggestions or maybe buyers....
thanks for any help.
New plugs, wires, rotors, cap, timing 10 degrees btdc (by scope), good spark at all plugs. Throttle body cleaned out with carb cleaner.
Can't find any vacuum leak, vac advance seems to work (tried running with vac hose disconnected from distributor and line plugged. That was ugly.
New fuel pump, filters, and fuel lines. Changed fuel in tank, the clear fuel filter is full when throttled up.
Open for suggestions or maybe buyers....
thanks for any help.
New User
Joined: Dec 2010
Posts: 13
Likes: 0
my truck does a similar thing it misses and breaks up at random times then it'll clear up it didnt do it for about a month then started the other day.replaced wires, cap, distributor, ICM module fuel filter.ran 2 bottles sea foam thinkin it was a gas problem..nope still does it and my fuel pump is fairly new i dunno what it could be
Cargo Master
Joined: May 2007
Posts: 2,071
Likes: 36
From: British Columbia
Try disconnecting the fuel line at carburetor and directing it into a bottle. Start and idle the engine to make sure there is a generous stream of fuel.
Even though the clear filter is full, the flow could be low.
Even though the clear filter is full, the flow could be low.
