Idle rpm drop while tapping brake pedal - Saab 900 Bulletin Board - Saabnet.com
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92 900T with 192k miles. Is it normal for idle rpm to drop by say 50 rpm when tapping brake pedal and or moving pedal in and out a bit? So far my braking is fine. Car idles at 900 to 1000rpm which seems a bit high. I put a new AMM in which caused check engine light to come on, company sent a replacement which is doing the same thing. Have another AMM on the way.
CURIOUS THING is the CEL has a slight flicker with brake applications as well which is leading me to think I have a vacuum leak in the braking system?
Thanks yet again for your help!
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