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Forum > Emissions Component > Question

1990 Chevy Silverado C2500 5.7 TBI - Does it have a smog pump?

Did my Chevy truck come with a smog pump from the factory? I can not find my trucks air injection pump and I think the previous owner has removed it.
Answer:

Yes, you Chevy C2500 did come equipped with an air injection pump also known as a smog pump from the factory. The smog pump will be required to pass a California smog check. If your truck's air injection pump has been removed, consider locating one at a local wrecking yard or contacting a local auto parts store for a rebuilt unit. Having the smog pump installed and functioning is not only required to pass the smog inspection but is also necessary in order to lower HC and CO emissions. posted by SmogTips Support

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