msclstang18

ok so I have a 95 5.0, everything was fine and then it started misfiring. I replaced the cap, rotor, coil, plug, wires and air filter and then the problem was still there. It's like an erratic misfire while driving not to mention there is no power and the car shakes violently while driving. I got a fuel filter that i'm going to replace, but I dnt know what is going on. The problem was consistent before and after the tuneup then all of a sudden it has gotten much much worse. Thanks guys if you can help me out..

msclstang18

forgot to add, when I give it gas the car jumps from 3000rpm to 2000rpm or 3500 to 2500 whaveter the case may be it jumps up and down about a 1000rpms when given gas. thanks

15austin

Replace that fuel filter, maybe it is so cloged that when you give it gas the fuel is not getting to the injectors because of the filter. You have it so put it on and then go from there.

msclstang18

I replaced the fuel filter and still the same issue. The other one had some discolored fuel that came out of it when I blew through it, but the fuel seems to be clear thats coming from the new one.

grnstang

how many miles are on the car? it sounds like it could be a fuel pump going way bad

15austin

Try putting a fuel pressure gauge on it to see if it is dropping. Check your timing as well.

msclstang18

its got a 195 lph on it that is only 3 years old, i'm going to pick up a obd1 scanner here in a min to check for codes. I dont have a fp gauge so thats out of the question.

Joel5.0

You may also want to check this SN95 case. LUK

msclstang18

I got a throttle position sensor code, would that do this?

ewgoetz

You may need a new throttle position sensor than would explain a rpm jump. easy to change it is located right on the throttle body and held on with 2 screws. It should cost about 80 bucks give or take. only other thing that comes to my mind is a ignition module going bad. But sunce you got that tps code I would start out with changing the tps.