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surging

  1. 2005-2010 Mustang GT Tech
    Hey guys, long time reader, new poster! For the most part I can find answers too most questions really easy thanks to the plethora of info you guys post! But alas, I'm pretty stumped at the moment. History, 06 GT, Manual, Steeda Intake, 93 tune, dumped exhaust, stock otherwise, 45,000mi., new...
  2. 2011 - 2014 V6 Mustang Tech
    I've noticed a surging feeling lately during hard acceleration. Typically in 1st and 2nd gear. To me it feels almost as if traction control is cutting power so the wheels don't spin. I'm in the habit of turning off TC as soon as I start the car, but maybe I'm doing something wrong. I noticed it...
  3. 5.0L Tech
    I got new plugs for my 1985 mustang 5.0 and changed them out. now that i have the car makes a popping sound kinda when i go to accelerate and backfires like crazy when i half throttle or more. when it starts making the popping noise it starts to lag. its not a constant lag only when it makes the...
  4. Introductions
    hello, I have had my car for about 2 years now and haven't had to fix anything on it for the most part. although, since i have had the car my "check engine" light has been on, but was told by many people it was nothing major. a few days ago driving my car I noticed as i started accelerating it...
  5. Introductions
    I've heard it could possibly be the alternator. I have hids, stock battery, two 12 in subs and a 1000 watt amp. It surges when cruise is on. Any thoughts?
  6. 5.0L Tech
    My 91 has just recently started the whole "I'm a typical Ford and I don't want to behave when cold staring". This just started very recently, it surges constantly between 2500 and near stall out (approx) when I start her up first time for the day. Now it'll do this for about twenty minutes or...
  7. Classic Tech
    So i recently rebuilt my carb (edelbrock 1406) and everything works perfect unitl i get around 60 mph. Then it starts to buck and surge. It accelerates for 1 second and stops for the next second and so on.
  8. 5.0L Tech
    Ok so were stumped. I just did a GT40P swap. Includes heads upper and lower intakes and threw an e cam in there. Planned on throwing some power adders on there soon, so we planned on 24lbs injectors w the matching maf. Well what we ended up with were injectors out of a 2004 Mach 1, which are...
  9. 5.0L Tech
    To start this off I will be posting to many, many forums my problem. First off, Details Of Motor: Block: 302 bored 30 over Crank: Stock Pistons: Stock Cam: B-303 Heads: Aluminum Gt-40 SVO Rockers: Stock Intake Lower: Gt-40 Intake Upper: Gt-40 EGR Spacer: 70mm Throttle Body: 70mm Intake Tube...
  10. 5.0L Talk
    Dear Mustang experts: I just bought a GT 95 5.0 15 minutes after Starting the engine, whether driving or at idle, the car starts stalling and then dies. when driving, it gives me check engine message, and if I stop at a traffic light or a road bumper, the car also dies. so the only way I have...
  11. 4.6L Tech
    I have a 2000 Mustang GT with a manual tranny and 143,000 miles. I just got back from a weeks vacation on sunday and when I went to drive my car, I noticed a pretty heavy "surging" or "miss" when under acceleration right at 1800-2400 RPM. (it jerks me back and forth a little). Usually when under...
  12. 4.6L Tech
    I've posted about this before but I have a video now. I have a 2000 Mustang GT w/ 144,000 miles. When a/c is turned to "norm a/c", "max a/c", "Defrost", or "Mix", I get this really bad idle when parked. When I'm moving I can feel a huge power loss and a surging. The surging/rough idle gets worse...
  13. 4.6L Tech
    I have a 2000 Mustang GT w/ a manual tranny and when under medium to high acceleration there is a bucking/surging, especially when going up hills. I just had Ford replace the fuel filter less than a week ago.
  14. 5.0L Tech
    i have 95 mustang gt engine is stock has bbk catless h pipe with flowmaster 44s and a cold air intake changed the idle air motor the shop i took it too cant figure it out any input will be appreciated
  15. 5.0L Tech
    Hello, I'm a new member here... Just bought my 1990 white LX 5.0 Hatch 5 spd with only 60k original miles 2 weeks ago. It's in great shape. Interior is near perfect and paint is great. It has a rough idle, not bad, just a little rough. I gave a full tune up including cap and rotor, plugs and...
  16. 5.0L Tech
    ok so i have a bad surging idle so i pulled some codes here you go 66 - , MAF signal below minimum test voltage of .4vdc (O,M,R), Temperature Circuit Grounded (M,O) 21 - Engine Coolant Temperature, ECT Sensor Out Of Self Test Range. 0.3 volts (250°F) to 3.7 volts (50°F)(O,R) 18 - Spark Out...
  17. 5.0L Tech
    just installed a trickflow stage 1 cam and it sound great and good power but when i start the car WARMED UP it wants to die and rpm dives to 500, i got to tap the gas for the first 30 sec or so then it surges from 1000 to 1500 and slowly goes down to 950(idle screw on t/b wont let me go lower)...
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