Question about 2009 Chevrolet HHR
Try to remember if this problem came up after filling gasoline. Try Premium to top off the tank and see if it helps.
If there is no "Check light" on the dash, then there are a limited number of things you can check without a Dealer computer. An ordinary scanner usually needs a "check light" to function, but a Dealer computer has its own agenda and does not need to rely on the onboard computer. The type of Dealer computer I mention will investigate the sensors, and other components on its' own and be interactive with the Service technician.
There is a test port on the fuel rail for fuel pressure. Some autoparts chains have Tool Loaner programs and this tester can be borrowed.
Of course if the Air Filter is dirty, or the oil or fuel filter, it will affect performance. So will dragging Brakes, clogged Catalytic converters, low tire pressure, and a low Battery. Check automatic trans fluid.
If you do have a "check light" you can get a free scan at Autozone, Advance, or Oreilys autoparts. Please rate my info and I hope this is helpful.
Posted on Nov 09, 2012
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Posted on Jan 02, 2017
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