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Don't use Seafoam. I have never and will never use that. Many poor reviews and other damage caused by using it. 187,900 miles, 31 MPG highway 80-90MPH. No reason to be putting in a bunch of random chemicals in your engine that causes catalytic converter, spark plug, and oil contamination/failure just so you can clean off all the seals in the engine and possibly because of that cause leaks that were held at bay by buildup. Lol.
If it starts when she has the throttle body open it may be that it's running rich and not getting enough air, and when it's opened it allows a lot more air to start the engine.
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