vacumn?

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drzsnapj
Posts: 60
Joined: Fri Feb 15, 2008 4:40 pm
Car: 1993 Nissan 240SX Fastback
Location: Orlando, FL

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i have a red top SR running on stock boost(7psi) and when at idle the vacumn is at 15-17vac psi and the car shakes as if it wants to shut off but it idles steady at 800-950 rpm. is this normal for SR's or do i have a leak or anything else thats causing this problem?

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ard
Posts: 98
Joined: Sat May 31, 2008 2:19 am
Car: 1989 200sx ca18det
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does rpm change when motor shakes? if not, then engine/gearbox mounts can be bad.
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