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- From: jimv@hienergy.East.Sun.COM (Jim Vienneau - Sun Microsystems)
- Newsgroups: rec.autos.tech
- Subject: Re: WHAT IS AN A-I-R PUMP ON A CHEVY CAPRICE ENGINE?
- Date: 22 Jan 1993 14:54:18 GMT
- Organization: Sun
- Lines: 18
- Message-ID: <1jp1qqINN6ug@seven-up.East.Sun.COM>
- References: <1993Jan22.082111.165610@dstos3.dsto.gov.au> <1993Jan22.080246.7763@news.unomaha.edu>
- NNTP-Posting-Host: hienergy.east.sun.com
-
- In article <1993Jan22.080246.7763@news.unomaha.edu> mgolden@cwis.unomaha.edu (Brian Golden) writes:
- >> Now can anyone tell me *why* the air pump shouldn't be removed??
- >I can not really think of any reason why removing the air pump would affect
- >engine performance. It might be harmfull to your catalytic converter...
-
- I don't know about the Caprice, but on my '82 Buick Regal with the 3.8L V6,
- the AIR pump only pumps into the exhaust stream for the first 5 minutes of
- engine start, then it just diverts the air into the air cleaner. It helps
- cut down the emissions before the ECM goes into closed loop mode. When it
- started to seize, I pulled the belt with no difference in performace or
- fuel economy. (for the greenies out there, yes I'm going to replace it as
- soon as it gets warm enough here to go junkyard roaming).
-
-
- --
- Jim Vienneau, Sun Microsystems Inc - Chelmsford, MA
- Email: jvienneau@east.sun.com Amateur Radio: WB1B
- Good old Ma Bell (well old anyway): (508)442-0372
-