Ford Mustang Forum banner


  1. Seafoam fouled spark plugs

    2005-2010 Mustang Talk
    My car had blown out a catalytic converter last year and it has had it's check engine light on since. I'm due for inspection this month so I finally got around to putting on a new catted mid-pipe. I installed a bbk x-pipe with cats. It sounds good. It's quiet on the highway and pops ever so...
  2. Foxbody choking at high rpm

    5.0L Off Topic Lounge
    Hello i have a 88 foxbody thats been bored and stroked to a 383. I replaced the spark plugs coil pack starter solenoid and radiator. Before i painted it i seafomed the gas tank and it was having idle and driving issues. I have cleaned the iac and maf and throttle body with carb cleaner and it...
  3. Can Seafoam be a blessing for Mustangs ???

    2011-2014 Mustang Talk
    Never been a huge fan of fuel additives, but my recent experience with Seafoam has changed that. I had heard of using it prior with boating, particularly using it at beginning of season after being winterized. I read on another forum about how it helped greatly with older Nissan vq30's, so I...
  4. Used Seafoam, Now Running Terrible.. Please Help

    5.0L Tech
    Had another thread in 'talk' before i used it, but thought this should be here. I used goddamn Seafoam through the brake booster line, only that, and only 1/3 of the can like you're supposed to. I poured it very slowly with a friend in the car and it didn't die when i was pouring it. After i...
  5. Blown head gasket?

    V6 Tech
    So i finally got around to seafoaming my 99 mustang today and when i was filling the vacuum line with the stuff, i noticed it was smoking alot around the front of the engine on the side with the oil fill (left side) i coun't exactly see where it was coming from, somewhere below the header i...
  6. Internal Steam Cleaning a 1997 Mustang v6

    I have a 1997 Mustang v6 a couple months ago it started smoking on start up (only on start up!). It does eat oil pretty bad, I'm pretty sure it has nothing to do with the head gasket and its just the valve guides and seals. So i've been driving around for a couple months with leaky seals and...
  7. Seafoam to find exhaust leak?

    Classic Tech
    I'm trying to find an exhaust leak and I've stumbled upon discussions about seafoam cleaning engines and producing lots of smoke. I figured I can kill 2 birds with one stone. Popular choice seems to be 1/3 fuel tank, 1/3 crankcase, and 1/3 can into intake. Is this safe to try in 66 with stock...
  8. seafoaming after onehundredandthirtythousand miles

    V6 Talk
    I just got some seafoam today and my car has 130000 miles and has never had it done before. i hope it gets rid of the sticky lifter and i think there is an exhaust leak so i need to find that. also opinions on hi-flo cats?... hope the seafoam helps alot any experiences what should i expect? oh...