When I try to start my car, the engine tries and tries and tries to turn over. Sometimes it will catch after a while, but only barely, then die. If that happens, I can immediately try again and it will start quickly. Sometimes it's not that difficult. When I accelerate on the highway to get up to speed, my car hesitates for a few seconds around 3500 RPM and feels like it almost loses power.
I just changed my fuel filter, but I'm thinking I need to change the fuel pump. Does anybody know how to do that?
Have the fuel psi check before you change pump,check air filter and spark plugs .
SOURCE: '98 Mazda 626 Died and will not start again..HELP
b_bro
Check the Fuel injection system (injectors) and the intake manifold. It might also be wise to check the alternator as well as the starter coil and also the electronic distributor
SOURCE: car is hesitating
For both the 4 cylinder and 6 cylinder engines: Under hood, driver side, engine side of strut tower, below air filter housing, mounted in fuel line
SOURCE: Pontiac 200 Grand Am 3.4L V6 3000+ RPM
have you checked the engine for vacume leaks or advanced timing or even sticking accelorator cable or linkage? these are always a good place to start for excess acceleration
SOURCE: transmission in 1996 mazda 626 slow to shift high rpm
if its reving high then shifting then your trannys going
SOURCE: car hesitates while driving on highway. with AC on
Check for any vacuum leaks by spraying WD-40 all around the top section of the engine while it is running. If you here the engine start to stumble then concentrate the spray on that area until you locate a loose or worn vacuum line. Also you may have to have your throttle position switch(tps) and or your crankshaft position sensor(cps) tested for integrity.
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