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  1. 75 shot on my 4.6?

    Nitrous Oxide N2O
    I have a 1995 thunderbird with a 4.6. It is in excellent condition mechanically and under 100k miles. That said, would this thing thing be good to handle 75hp worth of spray as long as I got a good professional tune? Got a good deal on a nitrous kit and want to know. I Was thinking of...
  2. where is my egr valve regulator sensor located

    Engine - 4.6L & 5.4L
    I have a 1994 4.6 cougar and im pulling up an error code p0171 and im hoping its my egr valve regulator sensor (DPFE) and not the needing to replace the egr valve because ive heard its a pita. the only thing I see that would be close is a sensor close to the vacuum can by the front passenger...
  3. car running rough sometimes and getting awful gas mileage

    Engine - 4.6L & 5.4L
    here lately my car has been running rough it idles and runs as smooth as a new car sometimes and sometimes you can feel like a miss and the alternator gauge bogs down and then when it smooths out it goes back to normal its also has a brand new alternator in it having the air on doesn't make a...
  4. 95 low mile 4.6 Cougar in trouble

    Engine - 4.6L & 5.4L
    9/29/2016 1206PST ***Update**** Compression is 170 at the high, 135 at the low, only two in the low and they aren't near each other. Shop wants to charge me, now get this, 305 for plugs and wires. That's just to TRY to get it started, (which it ran reliably before I moved the wiring...
  5. Engine Harness

    Engine - 4.6L & 5.4L
    I need to find an engine harness for my 94 tbird 4.6 :surprise: