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Need some HELP!!!

Discussion in 'Technical Q&A' started by yellow jacket, Mar 21, 2006.

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  1. yellow jacket

    yellow jacket Formula Junior

    Feb 25, 2006
    294
    Modesto CA
    Full Name:
    Charles Lunsford
    #1 yellow jacket, Mar 21, 2006
    My brother was driving my 91 Testarossa today and had what seems to be a major problem. The car runs like new as it did today when he took it out. He first went to the Shell station and filled the tank (aprox. 10 gals.) with 91 octane gas and took off down the freeway. Drove about 15 miles at 70 mph and took off ramp to turn around. While at stop sign car started to run rough, even died once. Was able to get back on freeway to limp it home, car wouldn,t go much faster than 50 mph. All of the gages showed no problems. When getting back to town he said at near stop the car seems to be "poping" almost like a small back fire. After he got home he called me out of town and I went home to check the car. The car had completley cooled and I took it out, it seems much quieter than normal and barely would accelerate. Also very jerky. By the way he said a couple of time while going 50 mph the 7-12 slow down light came on. When I parked the car I raised the hood and could smell what smelled like oil burning and a light smoke was coming up on the right side just above the exhaust. After the smoke was gone I stuck my hand down there and it was alot hotter than sticking my hand in the same location on the left side. Could it be bad gas or something much worse? Any suggestions or help would be greatly appreciated! Thanks in Advance!!!
     
  2. 285ferrari

    285ferrari Two Time F1 World Champ
    Sponsor

    Sep 11, 2004
    20,977
    MD and NE
    Full Name:
    Robbie
    #2 285ferrari, Mar 21, 2006
    Burnt oil??? More than a bad gas problem... Sorry to hear it..
     
  3. Rifledriver

    Rifledriver Three Time F1 World Champ

    Apr 29, 2004
    37,288
    Cowboy Capitol of the World
    Full Name:
    Brian Crall
    #3 Rifledriver, Mar 21, 2006
    The slow down light is an indication of an overheated cat. Your noticing the heat and smoke would seem to confirm that.

    If it is running that badly do not run the car, no good can come of it. It needs to be diagnosed to find the problem before it gets worse and more expensive.
     
  4. PWehmer

    PWehmer Formula 3

    Oct 15, 2002
    1,733
    Surrounded by Water
    #4 PWehmer, Mar 21, 2006
    Sounds like a lack of ignition on one bank of the engine. Heat is from the cats getting very hot reacting the unburned fuel.

    Tow the car in- driving it without fixing it is a good way to burn it down. Plenty of pictures of this occouring.
     
  5. Jeff Pintler

    Jeff Pintler Formula Junior

    Jul 20, 2005
    537
    Richland
    Full Name:
    Jeff Pintler
    #5 Jeff Pintler, Apr 3, 2006
    It's been about two weeks....did you find the problem? Could be as simple as a dead O2 (lamda) sensor. By the way, there is a water temp sensor on the top of the motor that when it dies, it cuts out one bank of the motor. Costs about $68 and very easy to get to. Carry a spare and don't let someone talk you into a new ignition system or new computer. Bothers are kinda hard on cars at times.

    Jeff Pintler
    89 348tb, 86tr
     
  6. yellow jacket

    yellow jacket Formula Junior

    Feb 25, 2006
    294
    Modesto CA
    Full Name:
    Charles Lunsford
    #6 yellow jacket, Apr 4, 2006
    Thanks for checking! Took the car to Brian Crall in San Ramon. Turns out an Igintion coil went bad causing some cat problems. Brian's doing repairs and I should have car back in a day or two. Thank God for Fchat or I would never have found Brian. I can't count the bad mechanics I've met in my life, it's nice to finally find a good one. Thanks again for following up on my problem. Maybe we'll meet up sometime, lunch is on me.....Charlie
     

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