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firing order

  1. 351W Firing order and misfire

    Classic Tech
    I bought a used 87 mustang with a carbureted 351w about a year ago, haven't been able to work on it for a while. I have finally been getting into it and am having a misfire issue with cylinder 1. I am not sure where the block came from but it is rebuilt with hypereutectic pistons, an unknown...
  2. Firing Order 1–5–4–2–6–3–7–8 vs 1-3-7-2-6-5-4-8

    Classic Tech
    I just want to make sure I understand this...the difference between the two firing orders is CAM dependent, and the same CRANK work with BOTH firing orders???
  3. oil pump?

    5.0L Tech
    I have a 1989 gt. I was out of town for a while so when I came back I did a tune up on the car. Chnaged wires spark plugs. Fuel filter . U know the usual. And when I started it it didnt sound good. It started up fine but its making a hissing sound like air leaking and also sounds like a metal...
  4. 92 GT 5.0 Firing Order Question. 2 Different Orders found for V8, Confused.

    5.0L Tech
    ok, so this might be a dumb question but what is the correct firing order for a 92 GT 5.0 motor? I have looked online before and also in my Chilton and Haynes repair manuals and what kinda has me lost is I have found two different firing orders for V8 motors. I guess there is a Non-H.O. 5.0...
  5. Regular firing order not working

    5.0L Tech
    I replaced my distributor cap with an msd cap and I noticed that the wire going to cylinder #1 wasn't connected to the #1 position on the distributor. I naively pulled all the plugs out thinking I could get a printout of the firing order online or from one of my books. It ends out that my...
  6. 1990 302 in a 1971 Mustang Installation. Any Advice?

    Hello. I just bought a used 302 that came out of a wrecked 1990 Econoline van. I am about to pull the 302 out of my 1971 Mustang and replace it with the van engine. Of course I still have to swap out the intake and stuff, but I am really concerned about the things that aren't so obvious. And...
  7. Sequence Question?

    5.0L Tech
    Could an improper fuel injector order cause an engine to act like a rev limiter? I have an old 289 that is running a 302 H.O. firing and injector order. I runs but, around 3500 RPM it acts like thats it like that is red line. I thought maybe if I repinned the PCM that it would run smoother and...
  8. 302fuel injector firing order

    5.0L Tech
    So here is what I have. Original 289 block with a 302 FI setup. A9L computer. I know there is a difference in the firing order on the came from 289---302. I know the 289 firing order, what is the difference? It runs rough right now because the injectors are firing before the intake valve opens...
  9. 1969 351W - Messed up firing order

    Classic Tech
    I am just getting to know a '69 Mach 1 that I bought ove the winter. The car was running pretty crappy (rough acceleration, vibration, stalling at WOT) so I decided to do a complete ignition tuneup (plugs, wires, cap, rotor, Pertronix Ignitor upgrade and coil). I took out my trusty Chilton's...