Question about Pontiac Cars & Trucks
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Posted on Jan 02, 2017
you may need to clean the injectors
what you can do is
you can buy some injector cleaner and see if this helps
make Shaw you get a decent brand as the cheep ones do not work as good
drive around with this in your gas tank
when you have in in your gas tank it helps clean them if you do some harsh acceleration but don't race the motor and don't speed
in other words get to the speed limit fast
this will apply pressure and will push through any gunk build up
there may be some smoke for a while from the exhaust but is will go back to normal when the fuel injector has finished cleaning and all the build up is gone
hopes this helps
Posted on Dec 29, 2008
Possible injector failure. locate by disconnecting injectors one at a time. The one that makes no change is the questionable. Status of spark plugs need chkg also. pull the plugs an the one that looks washed is questionable good luck
Posted on May 22, 2009
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