T
Tom Piantanida
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- Last seen
- Joined
- Feb 6, 2023
- Thunderbird Year
- 1957
My 1957 has a miss at idle, so I started checking for a vacuum leak. I found that if I plugged the line from the vacuum port on the intake manifold to the inboard vacuum port on the fuel pump, the engine ran better. My question is whether the dual-action fuel pump will create sufficient vacuum to operate the heater control with the input (?) vacuum line from the intake manifold plugged. OBTW, I have electric wipers.