I have a well-maintained 2004 Toyota Tacoma (6-cyl, 4dr) with 150,000 miles.
Recently, about half the time I accelerate (from a dead-stop or even on the freeway), the acceleration bogs down, rpms drop, and it feels like my truck is about to stall. Then the acceleration picks up, and the car drives normally.
I took it to a Toyota mechanic, who said he found reduced compression and coolant leakage in two cylinders. He did a top-end engine
rebuild (including new gaskets, resurfacing valves, new cylinder head bolts, new air filter
, fuel filter, new belts including power-steering alternator
, waterpump, AC, and idler drive belt, new spark plugs
and spark plug wires, ), and the same problem happened again as soon as I drove 10 miles.
I sure don't want to bring it back to that mechanic, but would like some ideas about what else might be the problem, before I take it to a different mechanic.