Thread: Smog pump
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Old 01-31-2003, 10:43 PM
Bigmon Bigmon is offline
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Join Date: Jan 2003
Location: MA
Posts: 114
Smog pump

I have a 87 560SEL with 156k on it. There is a rumble noise coming from the smog pump. When I push down on the air cleaner it gets worse and when I lift up the air cleaner it goes away. I traced the hoses to the smog pump. You can hear the noise coming from the smog pump.

Right now I have it shimmed so it's quiet. Any ideas?
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