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power loss

  1. 5.0 monster computer problems

    5.0L Tech
    So I'm have some real hesitation and power loss from my 95 5.0 oh. I can't tell it's definitely a computer issue. Everything turns up good with all the new senors. But I suspect the tfi on the passenger fender is going out. When I finally got the specialty tool to unbolt it. I had it tested, and...
  2. Help!!!! 2004 v6 3.9l Mustang is throwing code p0304 and is running horribly

    V6 Tech
    My car has been running really rough, no power and throwing code p0304 for a cylinder 4 misfire. I have already changed the spark plugs, wires and fuel filter. I am thinking it may be a bad injector?!? When it first started acting up i figured it was my plugs. I was planning on doing them...
  3. 91 mustang 2.3L 4cyl. bucking and power loss! need help!

    2.3L Tech
    hi, need help! i cant find a solution on the internet to the problem my mustang is having! when i turn the car on my batter level gauge drops to almost the red line, and my temp gauge goes straight to the top when i start to drive, then when i get to about 1500-2300Rpm's the car starts to buck...
  4. 3-4 shift issues, power loss

    2.3L Tech
    Still working on the Turbo Swap, 88 T,bird into a 90 Mustang. Using an A4LD in the Mustang. I drive it, it shifts fine 1-2 and 2-3, but at about 45mph it acts like it wants to shift again, but will suddenly lose power, not shift and slow down. I can take my foot off the gas, and then speed up...
  5. 1988 Mustang Gt Random Power Loss

    5.0L Tech
    How's it going? I'm a newbie and just bought my first 5.0. I've had this ongoing problem that when I'm driving it "cool" it runs great, and it'll drive great until i turn it off then back on... when i do this the car has no power just noise... it doesn't accelerate like it's supposed to. We've...
  6. 2008 GT Slow,hard lope?

    2005-2010 Mustang GT Tech
    I was on my way to work today and when i pulled out of the driveway my GT started loping very slow and hard. It was shaking the whole car kind of like a large cam would but i had very little throttle response. I turned the car off and back on and the idle and response was fine and the car got me...
  7. 1991 mustang 5.0 loss of power at WOT. What should I try next?

    5.0L Tech
    1991 mustang LX 5.0 240,000 miles. Stock long block and 5 speed trans, all else modified, including griggs full street suspension. I am new and this is my first post, thank you for your help and suggestions. I have had a major loss of power in WOT situations, usually in 1st gear. Over the...
  8. 2004 Mustang GT running lean, poor idle, loss of power

    4.6L Tech
    Hello everyone. I'm new here so bare with me but I will be extremely grateful for any help I receive. I got my 2004 GT about a month ago and it has roughly 190,000 miles on it. It started with code 0301 (misfire on cylinder 1) so I replaced the coil and plug, problem solved. Shortly after it...
  9. 2004 Mustang GT running lean, rough idle, loss of power

    Introductions
    Hello everyone. I'm new here so bare with me but I will be extremely grateful for any help I receive. I got my 2004 GT about a month ago and it has roughly 190,000 miles on it. It started with code 0301 (misfire on cylinder 1) so I replaced the coil and plug, problem solved. Shortly after it...
  10. 2012 V6 Pony Dies Intermittently

    2011 - 2014 V6 Mustang Tech
    I have a 2012 3.7 Pony. Yesterday the engine died out of the blue on the freeway. Upon trying to re-start, the starter would run for a few seconds and stop. The same thing happened today on a surface street at about 30 mph. The dealer can't find any codes and could not reproduce the...
  11. Please Help: Power loss/jerking issues!

    Mustang Tech
    Okay so hears the deal: 2005 Mustang GT, manual, only 54k miles on it Things to consider: Just replaced my stock mufflers with flowmaster mufflers So, when I shift into and out of 2nd gear and occasionally 3rd you can hear what sounds like grinding... but I cant really tell if it is grinding...
  12. 1993 2.3l Lx Mustang Running/Driving Issues.

    2.3L Tech
    First off I'm going to say that I'm not a mechanic and far from it. The little bit I know about cars is from learning to fix my own. I have a 93' 2.3L Convertible. When i first got the car about 3 years ago everything seemed fine. At a dead stop she accelerated nicely and ran like a champ...
  13. Power Issues after Tons of Work!! Help Please

    Introductions
    Hello All, Here is some history; I have a 1993 Mustang LX Convertible 5.0 Work done: ---Brand New Rebuild--- Stock 5.0L Block Bored .030 over Ported & Polished AFR 165/202 Heads 1.6 Roller Rockers Forged Pistons Forged Rods (X Cam I believe - can find out for sure if needed) Ported upper and...
  14. 1989 GT 5.0 Start up and Idle concerns

    5.0L Tech
    hey everyone, i just picked up a 1989 Mustang GT 5.0 automatic a couple weeks ago (all stock besides spectre air filter) and im having an issue with startup. whenever i turn the key over the engine will start but if i dont give it any gas, it will just die on me. it also likes to die on me when...
  15. 2001 mustang gt loses power after it warms up

    4.6L Tech
    I just installed a new fuel pump and filter on my mustang and it ran fine for 3 months. now after the engine warms up I lose power and it stalls out when I slow down. could this be a vacum leak or is it somthing else?
  16. Power loss after first Service 2012 gt

    2011-2014 Mustang Talk
    Hey there. Getting a few issues occuring with the 5.0 2012. The most recent is an apparent loss of power or low end torque that seemed to appear after a reflashing of the ECU at the local ford dealership. The informed me that no trouble codes were showing and that there should not be any...
  17. Erratic Idle Help!?

    5.0L Tech
    Hey everyone, happy new year, im having this problem yet again, my car will be sitting at 1k rpm's and ill watch the tachometer and it will bounce to about 1800 rpm's with barely any change to the sound of the idle, it does this very often. seems more often when the heat is on, i've replaced...
  18. 2011 mustang gt power loss/flashing check engine

    2011 - 2014 Mustang GT Tech
    i have a 2011 gt/cs.steeda cold air,flowmasters,x-pipe with factory cats,mdx clutch,the revised pp bolts from ford,and brenspeed 93 tune. at 60-70 mph on the inerstate, if i downshift and hold the rpms at 4000-5000 for longer than a few seconds,the power cuts out and feels like an overdrive...
  19. video of my lovely power loss

    5.0L Tech
    mustang power loss - YouTube 1st gear isnt so bad, 2nd gear is ****** 3rd is awful...
  20. Serious loss of power tried a few things please help.

    V6 Tech
    Hello all! I'm new to this forum and would like some of your wisdom. I have a 2001 3.8l 5spd. I recently had it in the shop due to a loss of power and one of my cylinders going dead in heavy rain. The day this happened I was driving in the rain and I can tell I'm dragging a cylinder. Not a new...
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