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    nsejab's Avatar
    nsejab Posts: 4, Reputation: 1
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    #1

    Dec 10, 2013, 10:42 PM
    Misfire and strong gas smell
    1994 Ford Thunderbird. 4.6L V8 with auto transmission.

    Car was running fine when parked. After several hours returned to car and started fine but has bad misfire. Can smell gas really strong. Checked both coil packs and wires. Has had a code for EGR valve for a while but never any indications except light. O2 sensors changed about 6months ago.

    Jay
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
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    #2

    Dec 11, 2013, 07:11 AM
    Sounds like the Ignition Control Module (ICM) is bad. If you keep driving the car, while the problem exists, you run the risk of 1) blowing the exhaust system off the car, due to gas build-up, and 2) ruining the catalytic converter.
    nsejab's Avatar
    nsejab Posts: 4, Reputation: 1
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    #3

    Dec 12, 2013, 01:13 PM
    Is there a way to test it?
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
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    #4

    Dec 12, 2013, 01:21 PM
    AutoZone can test ICMs on their Well's machine. I don't place a lot of faith in the results, however. My experience has been that if they test bad they are bad. However, if they test fine, they may be bad. Instead, I recommend replacing ICMs every 125,000 miles or 10 years, whichever comes first.
    nsejab's Avatar
    nsejab Posts: 4, Reputation: 1
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    #5

    Dec 12, 2013, 01:33 PM
    Thank you very much.
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