Question about 1989 Buick LeSabre

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89 buick century idling ruff when started, and fan comes on right away even though car is cool, but drive ok ones you get going? Ive got a code 22/ 42 Thanks so much

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You need to determine why the fan is on (stuck relay, bad sensor etc.) If it remains on, the computer keeps engine controls in "cold-start" mode and will not operate properly. (re-check codes after the fan works right.)

Posted on Jul 22, 2009

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