Whenever I screw up something, I always go back to the last thing I did.
But here's a story for you. Years ago, I was pulling a 25-foot trailer through Jerome, AZ with an early-80's Suburban. The fuel pump started cutting out in narrow, twisty streets. What a fiasco. I brought it to a garage in Wickenburg and watched the mechanic fix it. He said there was a pushrod that pushed the lever on the fuel pump. The pushrod could get cocked so he had to be careful.
I'm pretty sure that Toyota copied the Chevy engine. The pushrod runs off the cam, and something like the water pump could also run off the same pushrod or something.
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