92 5.0stang

I installed a 75mm throttle body and since then my car started shaking while i step on the gas but when i let off it doesnt shake. Now i happened to grab this throttle body off a car in the junk yard. It has the oil tube blocked off . Should i unblock it and connect the tube that goes from the valve cover to the throttle body?

camaroeater

I would hook the tube back up and perform a base idle reset.

92 5.0stang

i hooked the tube back up and did a base idle reset and it still shakes. this is a troubling problem. anyone else . any ideas are welcome

92 5.0stang

i hooked the tube back up and did a base idle reset and it still shakes. also since i installed the TB my acceleration isnt as fast it feels sluggish along with shaking? i didnt think that was supposed to happen or is that normal. this is a troubling problem. anyone else . any ideas are welcome

B.Thorson

75mm wouldn't be too much air would it? is the motor all stock?

PRO50SC

First problem, junk yard. Did it have a tps sensor already on it? May it's no good.
Yeah, what's the need for a 75mm t/b and if you are still on a stock mani it's no doing a thing for you.

lxman1

65mm is more than enough for a stock set-up. Did you use your old TPS sensor? The one on the new tb may be bad.

92 5.0stang

I dont have a stock manifold . shoula mentioned that . i have a bbk SSi. and i used my tps sensor. and it looked like it was brand new it was polished and everything didnt look that used either.

PRO50SC

OK so have you tried swapping back to see if the problem goes away.

92 5.0stang

yes just swapped and tested and yes it still shakes. not as much tho