The Mothership Maintenance Log #73

Sometime recently (I want to say after getting gasoline) the engine’s developed a sputtering/haltering hesitation while accelerating under load. If I’m coming out of a stop and am accelerating through the 1.5K-3K RPM range, the engine sometimes will falter, and the whole car rocks a little.

I don’t think it’s a vacuum problem, since the car idles fine. I tried removing the brake booster and holding over the port with my thumb just to be sure. I’ll revisit this later.

I tried replacing the fuel filter and putting some HEET formula for waterlogged gasoline in the tank. Neither of those helped.