I`VE GOT A `93 OLDS BRAVADA,,,,and it isn`t getting enough air,,or the fuel mix is not correct,,needs tuning up,,,it wants to bog down,,when i gas it quickly,,,any clue?
2007-07-17 13:26:45 · 3 answers · asked by rhardfrumnc 4 in Cars & Transportation ➔ Other - Cars & Transportation
You didn't mention anything about a slow max speed ( max 50mph, wide open) so I take it that there isn't a problem getting up to speed, just that it hesitates from a stop. This eliminates the fuel system as being the problem. The 4.3 L is very picky about its plug gaps. Replace the spark plugs with good quality ones. ( Preferably from the dealer). If this doesn't clear the problem, here's a complete list of possibilities that cause hesitation during acceleration:
1- fuel pressure.............. fuel pump / pressure regulator
2- spark plug wires ....... arcing, (water test these)
3- throttle position sensor........ trips "check engine light"
4- intake air temp sensor ..... makes engine run rich/lean
5- engine coolant temp sensor. hesitates engine warm only
6- dirty fuel injectors ..... pour in bottle of cleaner into gas tank
7- oxygen sensor ..... trips "check engine light"
8- mass air flow sensor... trips "check engine light"
2007-07-17 14:25:10 · answer #1 · answered by shopteacher 4 · 0⤊ 0⤋
Have you changed the fuel filter lately? Try doing that and see if the problem persists
2007-07-17 20:30:01 · answer #2 · answered by ja man 5 · 0⤊ 0⤋
try changing the air filter
2007-07-17 20:29:25 · answer #3 · answered by buddy 1 · 0⤊ 0⤋