LOSE POWER WHEN DRIVE UP HILL?
what year car< 1994 to 2022+ sorry can't guess 28 years of car evolution.
in what country.
what engine is there losing said power , non told.
so lacking all useful facts lets go generic, (gasoline only engines)
USA only 1996 and up.
1: transmission fails to up shift, scan it.
2: engine spark is bad, misfires power loss, time for a spark and all filters turn up? 100k mile tune up scheduled skipped?
3: fuel bad, fuel pressure too log or too high , lost power.
4: sensors on engine failing , SCAN IT. MAP or MAF.
after driveing about one hundred miles in 99 chevy cavalier it completely loses power on hill and engine dies.
spark plugs and coils and cadalic converter changed loses power and slows going up hill
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