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1999 saturn 1.9 twin cam 16 valve air pump what does it do and when does it kick

(1999 Saturn SL)
in Whitesburg, KY on May 06, 2013
on and why does it kick on
Displaying 1 answers & 3 comments
Popular Answer
of Greg's Orange Auto on May 06, 2013
IN WORKS MOSTLY ON COLD STARTS. IT INSTALLS AIR UPSTREAM OF EXH UPON COLD STARTS TO HELP WITH WARM UP
on May 06, 2013
mine is smoking around the pump white pump why?
of Greg's Orange Auto on May 06, 2013
WHEN ITS COLD IN THE AM OR AFTER IT HAS SET FOR AWHILE. IF ITS NOT COMOING ON COLD IT MAY NOT BE WORKING. YOU CAN BARELY HEAR IT RUNNING. FEEL IT 1ST THING IN THE AM AND U WILL FEEL IT PULSING
on May 06, 2013
white smoke
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