my 4.6 hesitates when accelerating

[usiskin99]

ok, heres the problem.... when i hit the gas all the way, the car hesitates and then goes. its weird because whe i just keep a steady accel, the car responds just fine, but when i try to gas it again, same problem kicks in. its a pain on the highway when trying to pass slow traffic.... tried a new throttle position sensor, and nothing happened. got a new air filter, same thing. im gonna chnge the sparkplugs tomorrow to see if this solves the problem. any of you guys has any suggestions? i would appreciate some help here.... thanks a lot.

 

[DevilGT]

Is your car automatic?

 

[stangdrvr06]

i think its the spark plugs if its not the filter or the sensor. I don't know if cleaning the Mas airflow sensor would help?? but try that too. How many miles on the car and yeah is it auto or stick?

 

[John00Stang]

change the plugs and wires. If a 5 spd it could also be your clutch, depeding on what its doin.

 

[usiskin99]

its a 5 spd manual, 80,000 miles and new clutch...... ill try the sparkplugs and ill let y'all know.... thanks. ill try cleaning the maf sensor too.

 

[usiskin99]

running like a mustang!!!!

hey, i switched to iridium sparkplugs....! runs like a beast! problem solved. thanks for your help!

 

[the98stang]

hey, i switched to iridium sparkplugs....! runs like a beast! problem solved. thanks for your help!

If they aren't torqued to 13lbs, do it, or they might blow out of the head.