Fuel Response Options

[6G96GT]

I had a diagnostic and full service inspection on my Celica done from a local Toyota Dealer. It passed with flying colors so I know there's no large concerns at hand that would cause my car to have a fuel issue. Anyway, here's my issue:


Whenever I am driving around (city driving that is), right after I shift and then press the accelerator pedal, my car lightly hesitates, it's not a smooth transaction kinda deal. It started happening about 3 or 4 months ago but now it seems routine. Doesn't matter what gear I shift into either. It's a very light (but noticeable) hesitation (under normal driving). If I were to accelerate it hard, there's no issue at all. Only when normally driving and shifting. By the way, I shift gears when I reach 2.5K - 3K RPM under normal driving.

I really don't want to pay a mechanic to spend hours troubleshooting if I can help it. What would cause this issue?

This post has been edited by 6G96GT: Sep 21, 2009 - 1:54 PM

[6G96GT]

Well, I checked the throttle body, looks good. I forgot that I had it cleaned and serviced when I had the head rebuild. Spark plugs are good too. Could it be my clutch getting worn out? I haven't replaced it since I've owned it.

By the way, I haven't performed an oil change on my celica in over a year and can't remember if I am supposed to put oil in the new filter and then screw it on or don't put oil in it???

[GriffGirl]

Well, I checked the throttle body, looks good. I forgot that I had it cleaned and serviced when I had the head rebuild. Spark plugs are good too. Could it be my clutch getting worn out? I haven't replaced it since I've owned it.

By the way, I haven't performed an oil change on my celica in over a year and can't remember if I am supposed to put oil in the new filter and then screw it on or don't put oil in it???

Over a year?! Woah. I take it this car isn't your daily driver?

I don't put oil in the filter when I change the oil - just rub some on the gasket ring around the filter to make a good seal is all, and after your oil change, drive the car around the block a couple of times to get it flowing through the filter, then check your level and make sure you're where you should be.

I'm gonna have to agree with the shifting being on the low-rpm side. I wouldn't take it up to 4k at all, unless you're fond of killing your gas mileage and racing your engine needlessly. I shift at around 3k or slightly over and don't have any problems with that hesitating you're referring to. When you shift, do you "snap" your foot off the clutch quickly once you've shifted? Maybe your timing is slightly off and it's not giving the gears a chance to fully engage before you push the throttle in.