Hi all,
i was wondering if any of you can help me identify this problem my 99 corolla hesitates every most of the time i step on the gas as if it not getting enough gas to the engine. i changed the spark plugs, spark plug wires, added fuel injector fluid and it is still happeneing. since the fuel filter is in the tank and is irreplaceable, how can i have my car stop hesitating when i try to speed up?
thanks
Several things can cause the hesitation: incorrect base ignition timing; incorrect spark plugs; some aftermarket spark plugs and spark plug wires; dirty MAF sensor; manifold vacuum leak; leak in the snorkel between the MAF sensor and throttle body; dirty fuel injectors; bad fuel pump; bad fuel pressure regulator; clogged fuel filter; clogged fuel pickup; contaminated fuel filter; incorrectly installed timing belt/chain.
Your best bet at resolving the issue is to have the vehicle diagnosed by a Toyota dealer service department or competent independent technician.
MotorsForum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.