Question about 2002 Pontiac Grand Prix
Have a 02 grand prix SE 3.1making a whistling sound ,replaced two vacuum hoses,was wondering if sound was coming from another one and if so, where it was located? The car is throwing a "Bank one too lean" code and i have replaced the top oxygen sensor in addition to the afore mentioned hoses.
Take some WD40 and with engine running spray some around all vacume lines if a line is leaking the engine will rev up, than you will know where its at, just watch where you spray it, stay away from exhaust and electrical as much as possible, you don't need to spray a whole lot,A intake gasget might be leaking too try around there consentrating around #1 cyl., just be carefull don't need a fire.
Posted on Mar 03, 2009
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Posted on Jan 02, 2017
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