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Hello everyone,
Can anyone tell me how the smog pump is supposed to function. I've read some posts that say that it's supposed to come for a minute or so when the car is first started. Mine does that but it also comes on every 5 minutes or so (I haven't actually timed it). It's loud too. It's by far the loudest part of my car. Should it be? Thanks for your help.
 

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Loud means the smaller bearing when the electric clutch engages are going out. It should be very quiet. I replaced the small bearing once but it failed again. I just unplugged it as the large bearing doesnt seem to go bad ever lol. Im kidding I am sure it does go bad but it hasnt on mine yet and the bigger bearing is quiet on mine so I left well enough alone. It comes on at idle at whatever interval the computer tells it to to lower emmisions. Longer idle with no movement probably cycles a bunch.
 
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