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97 3.8 LX Hard to start when warm and now idles rough

Discussion in '1989 - 1997 Ford Thunderbird' started by Sprocket, Mar 6, 2019.

  1. Hi I have a 97 V6 with 176K on the clock. A few months ago (2K miles) I swapped out the plugs, wires, and distro cap (if you can call it that) hoping to get rid of this issue. It seems to be getting worse now.

    When the car is cold it starts fine. When it' hot, it starts fine. When it sits for about 20-30min and it's in between, it usually starts and wants to stall and doesnt settle down into a normal idle (very rough and missing).

    If I give it gas and run it up to about 1500 rpm for a minute then it's fine. It has done this off and on since I got the car at 140K. Over time it has gotten worse and finally on Sunday I just wouldn't start for 5 or 6 tries and then finally did and like above had to give it throttle for a minute before it would idle ok.

    Today it's a little colder here (60s vs. 80s) and although it started fine cold after work it was idling really throbby (car was shaking).

    I'm going to guess there is either a vacuum line broken or a sensor is going bad. Any ideas on which sensor may be faulty? Wife is planning a 1000mile one way trip in it in a few weeks and want to feel good about it making it.
  2. First thought? clean/replace IAC (idle air control) clean MAF and TB (parts stores sell the right stuff).
  3. there is a vac line that looks like it goes from the charcoal canister up and into the manifold. Found the line was split just next to the manifold. As a quick fix, taped the end up and put it back on. Seems to run a little better now. need to replace the line as it has cracks all over it.
  4. Hi everybody! I have a Ford Thunderbird and the same interests as yours. I live in Russia, we have little information about the repair of these machines. I want to establish contacts with you.
  5. If anyone is in Russia, then you can meet and talk about the Thunderbirds
  6. 64ZCODE

    64ZCODE Well-Known Member Gold Donor

    Hi Antony, welcome to the forum. Yes, by all means. Would be great to know what TBird you have and have pictures also if you can send. Good group of people here ready to help you.

  7. Thank you 64ZCODE!
    Приятно общаться с единомышленниками! У меня супер купе 1991 года. Только сейчас он не заводится после ремонта проводов двигателя. Если отключить датчик распредвала, то запусти. Что бы это могло быть?
  9. Photo publish tonight
  10. 64ZCODE

    64ZCODE Well-Known Member Gold Donor

    Translated: Nice to chat with like-minded people! I have a super coupe in 1991. Only now it will not start after repairing the engine wires. If you disable the camshaft sensor, then run. What could it be?

    Я не знаю, но я держу пари, что другие на форуме смогут помочь вам, Антоний. Покажи нам

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