I have two old 4dr 2wd chevy blazers, an 01 (313k miles) and an 04 (258). Both still look nice. I bought the 01 in 09 with full options and 94k for only $5,600. Almost 220k later and it still has the original drive train. The only engine work was replacing the poorly engineered intake manifold gaskets a month after buying it. It still only uses about a half quart between changes. However, it is on its 4th fuel pump.
The 04 was bought in 2020 because it was cheap: $2,300. 219k with a replaced engine with 120k (I knew the trans was questionable). The engine is a freak. Hardly uses any oil between changes. Pulled the trans last fall and had it rebuilt for $1,850. In the 39k miles we’ve owned it I have replaced the fuel pump twice. However, I bought a cheap pump the first time.
Our 07 Highlander has 314k and still has the original fuel pump. However, at 305k it snapped the timing belt, which had only 68k on it (did the full job at the time: seals, idlers, water pump, and belts). The 3.3L is an interference engine. There was likely some dinged valves, but I chose to put a new timing belt on it and see what would happen. 9k later it is still running.
Because of the miles on it before the belt failure it was using about a quart and a half every 5k, had some noticable valve lash, and the check engine light was on more than off. Now it uses twice that, and the valve lash twice as noisey, yet no check engine light. Strange.
NOT SURE WHAT BRAND FUEL PUMP YOU ARE USING-—
I USE CARTER & I GET THEM FROM SUMMIT RACING PARTS.
THEY HAVE NEVER LET ME DOWN-—
I DRIVE 1976 1 ton 454 Chevy 4 speed & 1979 Buick wagon.