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Registered
Join Date: May 2005
Posts: 36
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Momentary Hesitation
New to me 89 C4; 50k miles. When I blip the throttle, there is a momentary (half second) drop in RPM before they rise normally. The car seems to run fine otherwise and this hesitation does not seem to affect drive-ability. Is this normal for these cars? If not; can someone suggest possible culprits?
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Moderator
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Here are some ideas:
Sticky ICV (idle control valve) Flywheel sensor O2 Sensor
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Don Plumley M235i memories: 87 911, 96 993, 13 Cayenne |
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