car doesn't speed well especially when i use the ac on 2003 Honda Accord

my accord has trouble accelerating as it should, its a v6 and accelerates like a 4cyl. it feels like there's a drag. my local mechanic advised me to replace the fuel pump that its pressure might be low. i did that and there's no difference, i was also advised to service my nozzles, did the same, no improvement. please can some one help? its frustrating, i don't enjoy the car anymore.

by in New York, NY on January 09, 2013
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2 answers 3 comments
ANSWER by , January 09, 2013
Before changing the fuel pump, you should check the fuel pressure. I suggest you to have somebody perform a complete diagnostics. If it feels like dragging it may be a caliper, brakes. However it is hard to say based on what you have described. I need more info, like when do you feel dragging, etc.
COMMENT by , March 07, 2013
Thank you so much for you response, the car seems to move freely when the ac is off but as soon as i turn it on, the acceleration almost immediately drops, it struggles to reach top speed. it doesnt give good bursts of speed when i push down the tottle/accelerator . its a v6, it used to be a joy to push down the tottle and hear it "roar" and take off, i dont get that anymore. i tend not to use my air conditioner, only if its extremely hot. I have also noticed it wont go passed 100kph. bottom line, it now drives like a 4cl engine. the gear selects reasonably well bt sometimes its not as smooth wen shifting. i love the car but looks like i might have to sell..
ANSWER by , January 09, 2013
Check trans.
COMMENT by , March 07, 2013
Thanks for your response. What are the symptoms of a defective transmission?
COMMENT by , January 20, 2015
Could be transmission fluid level or filter partially clogged if that's not it could also be alternatorbeen check output on alternator just because of runs worse with a/c on let me know if I helped you