I have a 1993 taurus.At times when you go to take off it will start to jerk and/or acts like its not getting gas.At times you have to push all the way down on the pedal to get it to go.And when that doesn't work ,you have to shut the car off and restart it.At times when you are driving down the road,it will start jerking and making a knocking noise.I recently had the fuel injecters and throttle body cleaned,air and fuel filters replaced.Would spark plugs cause the problem I am having? If not,any ideas what could be the problem?Also does the check engine light have to be on to get an accurate reading what could be wrong?Mark(blitz1957)

I have lost voltage to my power windows on a 1965 T-Bird. I have power going thru the circuit breaker and according to my manual the next thing to check is the 'power window relay', my problem is that I have no idea where that relay is located. Can anyone tell me where it is?