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Old 12-02-2006, 11:47 AM   #1 (permalink)
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Engine surging in 85 Tercel

1985 Tercel hatchback. At about 1500 rpm the engine speed cycles up an down about 150 rpm, with a steady throttle. It is a 3A carb motor with recent electrical tune. I cleaned the EGR valve, new plugs, cap, rotor. Air filter is good, new oil. No obvious vac leaks. Any ideas?
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Old 12-02-2006, 03:56 PM   #2 (permalink)
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Check to see if the nuts that attach the carb to the manifold, and the ones that attach the manifold to the head are tight.
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