1997 Nissan Maxima ENGINE SHAKE @ IDLE

1997 NISSAN MAXIMA
194,000 MILES • 6 CYL • FWD • AUTOMATIC
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97BLKMAXIMA
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Hello, i have a 97 maxima i had the nissan dealer replace drive belts new egr valve clean blocked egr passages and replace a altenator(recall) i got the car back and now it shakes at idle. when the car is in park its ok only when the gear is in "D" i have new fuel filter, spark plugs are like 6 months old all new 02 sensors . any suggestion? thanks
Jun 9, 2008 at 9:25 AM
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KHLOW2008
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Hi 97BLKMAXIMA,

If the idling speed is not too low, then you should check the engine mounts.
Jun 9, 2008 at 9:56 AM
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97BLKMAXIMA
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the engine doesn't shake constantly it will shake 2-4 times likely wants to shut off then stops then it does it again Also notice it shakes harder when the ac unit is on,its just fast shakes thanks
Jun 9, 2008 at 10:05 AM
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KHLOW2008
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Hi 97BLKMAXIMA,

In this case, most probably the throttle, ISC and AC Idle up booster needs some cleaning and adjustment.
Jun 9, 2008 at 10:09 AM
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97BLKMAXIMA
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OK thanks, ill check that. would this have been tampered with when the dealer change the a/c solinoid or taken apart the upper engine componants to clear out block egr passages. thanks a lot
Jun 9, 2008 at 11:18 AM
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KHLOW2008
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Hi 97BLKMAXIMA,

It is possible some adjustments had not been properly done.
Jun 9, 2008 at 11:22 AM