Thursday I replaced air filter and spark plugs, drove 50 miles on friday, no issues. This a.m. I go to drive and I am getting a small 200 rpm idle surge. No loose hoses, any ideas?
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You may have cracked the intake boot while taking off the filter. Get some brake cleaner and spray around the intake to see if a vacuum leak is the cause.Current Collection: 1990 325is // 1987 325i Vert // 2003 525i 5spd // 1985 380SL // 1992 Ranger 5spd // 2005 Avalanche // 2024 Honda Grom SP
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good thought, it was very stiff and hard to reattach.Comment
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Also, no clamp between intake tube and suction tube.Comment
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Took air box out and then added a rubber boot/clamp between suction tube and intake boot. Still seems to surge 3 or 4 times between 600-800 rpm then settles down at about 700.Comment
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The ICV may need a cleaning and some lubricant e.g., Triflow.
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