I HAVE A UNRESOLVABLE PROBLEM WITH THIS CAR CANNOT FIGURE OUT WHY IT FEELS LIKE ITS BEING HELD BACK LIKE ITS ON A RUBBERBAND AND HERES WHAT I HAVE DID SO FAR TO TRY AND FIX THE ISSUE: NEW TPS, FUEL PUMP, FUEL PRESSURE SENSOR, FUEL FILTER, K&N COLD AIR INTAKE, NEW COMPUTER NEW MAF, NEW EXHAUST AND EVERYTHING CHECKS OUT TO BE WORKING LIKE IT ITS SUPPOSE TO BUT STILL NO LUCK IN SOLVING THIS PROBLEM IF ANYONE HAS ANY IDEALS PLEASE LET ME KNOW OH AND ITS AT THE THIRD SHOP FOR THEM TO FIGURE OUT BUT THEYVE HAD NO LUCK SO FAR AND ITS BEEN A WEEK. THANKS FOR THE HELP IF ANYONE HAS ANY SUGGESTIONS.

 

So does it feel like it's just low on power? If so do you have a boost gauge and whats it reading? Also is the cel/mil light on?

Also welcome to the forum.

 

Pretty sure the 03 stage 2 Roush is just the GT version... If I remember correctly Stage 1 is a V6 with a body kit, Stage 2 is GT with a body kit, Stage 3 is supercharged gt with a different body kit.

 

 

Did not know they made a V6 Roush.

 

I thought the stage 1 was a body kit, stage 2 was body kit and suspension, and the stage three was body kit, suspension, and supercharger. All being GT's

 

ok the car is not supercharged its just a 4.6 sohc engine nothing special a stage 2 came out with stage 3 bodykit and with everything suspension could have and they also added a roush cold air intake. i know everyone has felt the wrath when you get on your stang and forget the traction control was on and it feels like it kills the car. thats what my car acts like it will jump when you first hit the gas and then fall on its face shift to second it will break side ways for just a moment and then back on its face its like that thru every gear.

 

they did make a v6 roush but they were rare to see but the gt was a seperate stages 1,2,3 the v6 would have had its own stages.

 

Ever change your coils?

 

Good grief will the people who don't know what the heck they're talking about please stop posting.

Sport V6/GT was the body kit (no wing) and exhaust
Stage 1 V6 body kit w/wing, exhaust, wheels, suspension and interior package
Stage 1 V8 body kit w/wing, exhaust and wheels
Stage 2 V8 body kit w/wing, exhaust, wheels, S2 suspension, CAI, interior package
Stage 3 V8 all S2 plus the blower, other drive train upgrades, Stage 3 specific springs

All Stages had options for the various misc upgrades (shifters, seats, gears etc...)



Now that we have that straight: Check your fuel filter and coil packs. Also check the condition of your cats.