misfire

  1. M

    02 mustang misfire

    I've been having this problem ever since I bought this mustang I changed few stuff, but I still have it. Hopefully you guys can help. I have a mustang 2002 3.8L coupe and it has the weirdest misfires at times. In the morning when the engine is cold It starts perfectly and It has no problems what...
  2. 8

    5.0 microsquirt mustang hits wall around 5000 RPM

    hello all, I'm new to the whole tuning scene and have been battling this problem for a couple weeks now. I have been asking around on the net for some help, but seems a lot of the sites are more about bashing and criticizing me for not knowing instead of helping.. One fellow i did run into that...
  3. D

    Engine 1999 v6 convertable

    Hello! Ive just had a problem with my stang. I didn’t know where else to go, or look so hope this is the right place! Last night heading home I bottomed out going too fast in my neighborhood, and it was loud! Anyway I didn’t notice any problems so just parked and went to bed. Well the next...
  4. M

    Having a Misfire issue after PI intake swap on 96 Mustang V8

    So, I did the intake manifold swap for my car. Went from a crappy Dorman intake for a non PI motor and put on the Ford Racing Performance Intake manifold. It was actually used and off of a 2002 Grand Marquis but same crap right. I now have a misfire. Yesterday she ran like a top! Now...
  5. R

    Help Needed! 95 5.0

    Hey guys I've got a serious ignition issue and at this point im just looking for other opinions 1995 Mustang GT 5.0 Bored and Stroked to 347, 5 Speed, Convertible California Car. So this car has been an ongoing project, did the engine and have been having serious ignition gremlins since...
  6. F

    Skip at low (<2000 RPM), new exhaust smell

    My 2003 GT started a skip a couple of months ago I attributed to a failing ignition coil (it’s happened before), I thought I’d wait it out and use my scanner when it got bad enough to draw a check engine light. Now, it hasn’t gotten worse, and it’s only at lower engine speeds, but now I smell...
  7. M

    Engine Oil, Smoke, Fire And Brimstone.

    Ok, not really the last two. Vehicle Information: 1993 5.0 litre in a 1990 Fox, A9L running GUFB strat on unknown def, aftermarket tb but not aftermarket MAF, knockoff cobra intake I think and possibly stock injectors. Hope this isn't the wrong board, suck at forums. I'll move it if needed...
  8. C

    Misfire That Fixes Itself For A Little Sometimes

    I need some help here. I just bought a used 99 v6 not too long ago and while driving in the rain the other day is started to hiccup and misfire. It has a CAI and the air filter is open to splashing from the wheel as there is no wheel well cover. Its been a few days since then and I'm getting a...
  9. M

    Misfire Hesitation And Popping Sounds

    Hey, so I have a 2003 mustang gt and I seem to have problems with it starting up and running. So first off the car runs but it hesitates and misfires. So I'll have the car in 2nd gear and I'm cruising at say 2200rpm and then I floor it and it just starts to spit a chug and pop sometimes. Also it...
  10. merc123

    Engine Intermittent Power Loss Wot

    I've had an intermittent power loss issue at wide open throttle and I'm stuck. I can get car rolling and put into second (1500-1600 RPMs) and stomp it. It will hesitate and stumble a little (normalish) and then accelerate hard like normal. Then you can feel the loss of power all of a sudden...
  11. A

    2002 Mustang Gt Misfire Help Please

    Hi All, I have a 2002 Ford Mustang that I bought a few months ago. It has been running great, haven't done much of anything to the car. I travel for work, and before I left two weeks ago, it was running very well. I get back, and drive to the gas station, and she throws a P0304 and P0316...
  12. B

    Help! 99 Gt Intermittently Misfiring

    i have a 99 GT auto vert with about 125k miles. i bought the car in december of last year for dirt cheap (thing was leaking coolant bad, among other things). since then it's pretty much been a continuous project as it is my daily driver. I've been able to tackle most issues with it, but now i'm...
  13. C

    Chasing Misfire Afte Intake Manifold Gasket

    I have a 1998 3.8 V6 and I recently replaced the lower intake manifold gasket because it blew up and coolant was getting into the oil. Anyways, Fixed that, replaced plugs, Replaced injector o rings, changed the thermostat, flushed both system, Cleaned the MAF, the whole nine yards. Now, I've...
  14. Clint426

    Engine Misfire And Carbon Fouling Plug On Cyl. 4

    Been trying to figure out a carbon fouling plug issue mainly on #4 and a bit on #8. All other plugs look fine. First will fill everyone in on what the engine is. Block: 408w (351w stroker) Heads: AFR 220 Intake: Super Vic EFI Cam: Compcams XFI 248 hr Ecu: PiMP (microsqirt basically) I'll stop...
  15. D

    Header Pipe Near #6 & #7 Plugs Very Hot, Melting Stuff & Plug 7 Erratic Timing

    Hey guys, My #6/7 spark plug area seems to be getting rather hot at idle, and it gets hot quickly. First noticed it the other day when I was pulling my spark plug wires to check resistances. My #6 boot and wire were melted bad (see pic). I have since put thermal boot covers over the boots, but...
  16. T

    Engine Engine Ticking :(

    Okay so my motor just started ticking a couple of weeks ago. my car randomly misfires and it kinda sounds like a lifter.. could a lifter cause the misfire? View: https://youtu.be/hosxpSF8eJc
  17. BrittanyxMariex

    2006 Gt Blinking Check Engine Light

    Hi guys. So, over the last few weeks my 2006 mustang gt seems to be bogging out when I accelerate. It only does this when my RPMs are low. At high speeds, the car drives great. It kind of bogs out and sputters for a few seconds so I let my foot off the gas and then hit the gas again and the car...
  18. J

    Idle Only With Full Choke?

    Hey everyone, in need of a little advice. My engine was running fine (maybe a little too rich) until I swapped the spark plugs. All of a sudden the engine starts misfiring and running terribly even after i checked the gaps. I watched the mechanic down the street tweak the carb a little and he...
  19. F

    Major Break Up Issue

    Hey guys I'm in need of some serious help. I have an 88 Gt hatch with a fully built 306 and I'm having some major ignition issues. For some reason my car breaks up terribly after 2k. It use to do this at 5500 but now its gotten much worse. When it breaks up its pretty violent it shakes the car...