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fuel pressure problem

  1. 4.6L Tech
    hey guys im new to this thread but wondering if anyone has had this same problem at about 4grand in 2-3-4 gear my fuel pressure drops from like 45 to 10lbs i can shut the key off and turn it back on and resets the pumps but will continue to do it under wot ive switched all the relays im running...
  2. 5.0L Tech
    So my 95 GT ran fine when I went to get my daughter from school but did not start when I went to get my son an hour later. I replaced the fuel pump about 3 months ago and can hear it prime. I just replaced the plugs & wires,TPS,distributor and rotor,fuel filter,fuel pressure regulator,I cleaned...
  3. 5.0L Tech
    i have a91 5.0 with a fuel pressure problem ... i put a gauge on the schrader vavle behind the alt when i turn the key forward i here the pump "prime" but get no psi reading. the car will start eventually once it does i have 26-29psi with or without the vacuum hose attached to the stock fuel...
  4. V6 Tech
    3.8 L engin with an automatic transmission that my son has. Could this be a fuel pressure issue?
  5. 5.0L Tech
    i have a 93 Mustang GT. i recently had my transmission swapped because the old one was slipping. well the new one shifts fine, but now(its probably been happening for a while didnt try to do it with the slipping tranny) while in gear it wont rev past 2000 RPMs. if its in neutral or park it Rev's...
  6. Introductions
    My 1998 ford mustang is dropping it's fuel pressure to low. When I shut it off it drops the fuel pressure so low that when I go to start it it takes a while to start because it has to build up so much fuel pressure. What do you think is causing this and how do I fix it? If I sit there and turn...
  7. 5.0L Tech
    Hi, guys, This is my first post here, but I've been a daily reader for a while! I look forward to participating. I have a 1987 5.0 that was leaking like a siv. I removed the throttle body and the valve covers and replaced the seals. Everything went fine until I put it all back together...
  8. V6 Tech
    Ok ive done to much to this mustang to give up. I have a 99 v6 and the engine went out. It had a blown headgasket. before it went the check engine light was on and saying cylinder 3 misfire. i changed the plugs and everything but still was reading that and wasnt idling good at all. i figured it...
  9. 4.6L Tech
    I’m ready to shoot this hoss. Started running rough / hard to start two weeks ago on long trip. Had several misfire codes, which were resolved with help of dealer…replaced all cops and plugs, and carbon vacuum. Dealer said intake was full of carbon. Ran fuel cleaner through as well. Still...
  10. 4.6L Tech
    I have a 1996 Gt 5-speed. It has ran great since i bought it. Up to a couple of weeks ago it started bogging down while running. Idles really hard sounds like i have huge cams then dies. It turns over and over with no luck.(just ocational start ups with it camming real hard then it dies again) I...
  11. V6 Tech
    Hello all. I have a quick ?? I have a 2000 mustang 3.8L V6, and I have had the fuel pump replaced 2 times in the last month, they are both doing the exact same thing. The car runs beautifully until I shut it off, then it seems the fuel pump is bleeding off all the fuel pressure. so when I go...
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