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  1. 5

    Stock Engine Detonation, New to SVTs

    I'm almost positive now that my high RPM troubles are detonation. I had a 95 5.0 with a Vortech S-trim 10 psi, so i know the sounds of detonation. Here is my problem. On a WOT Run, my stock 98 Cobra recently started to hesitate and "buck" lose major power from 5kRPM and up. The engine would...
  2. 5

    98 Cobra: Recent Engine troubles

    After a long week of driving (1000+ miles in 8 days) my 98 cobra with 54,000 miles on it picked up a rough idle (feels like a miss), has had a drop in gas mileage, and the last time i got on it, i thought i heard some detonation, and around 5k rpm at WOT it felt as if I hit a wall in...
  3. 5

    HELP ! Coolant issues

    My heater core blew out, and im leaking coolant under the car. It leaks like maybe a half a litre in 3-4 min of idle. Im 15 miles away from the dealer, i have an appointment for them to bypass it tomorrw morn, my question is how do i get my car there??? Will it make it if i stop and fill it with...
  4. 5

    Hesitation and bucking while driving

    On a cross country drive my stock 5.0, that i had bought a few weeks prior, started to buck and kick while climbing inclines at high speeds. At first, i thought it was the wind, you know how that feels when its head on, and it feels like power on / power off, but come to find out it does that...
  5. 5

    5.0L experts; need help

    On my recent 1000 mile drive, my car flashed a check engine code. At that time i noticed major "missing" or stumbling under acceleration and at constant speed, more noticeable at highway speeds. I used my diagnostic computer and got some emissions codes, which i dont pay too much attention too...
  6. 5

    Spark Plug Wires, blue sparks??

    I just installed brand new MSD 8mm wires and my car stared to run like crap at idle, but SEEMED ok at WOT. Everything went good with the install. I did a 90k mile tune up with new cap, rotor, plugs and plug wires. Cap and rotor are good, i got the best ones i could find, the plugs are the ford...
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