Chevy HHR Questions and Answers

I just bought a brand new 2011 Chevrolet HHR. Drove it to the local body shop to have some pinstriping done to it. Seamed to be overheating a little on the way. Got a call the next from the body shop manager. He said my car will not start, so he had it towed to the local Chevy Dealer.

Chevy HHR. 2.4 litre.Question: is it hard to replace the lower control arm bushings.

Answer: Replacing the lower control arm bushings is not that hard at all. You need to get the car up on jack stands or a lift and remove the front wheels.

2007 Chevrolet HHR. New tires, brakes, rotors changed. OK I started having violent shaking in the steering wheel about 8 months ago so I took it to the dealership
and they said I needed new pads, got that done and it took care of the problem for about 2 months and I started having the same thing again.

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How Things Work

Car and Truck Fuel System Operation

The fuel tank stores the fuel supply. The electric fuel pump, supplies fuel through an in-line fuel filter to the fuel injection system. The fuel pump provides fuel at a higher rate of flow than is needed by the fuel injection system. The fuel pressure regulator maintains the correct fuel pressure to the fuel injection system. A separate pipe returns unused fuel to the fuel tank.

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Common Engine Codes

Oxygen Sensor Code P0130 - P0141

The powertrain control module (PCM) supplies a bias voltage of about 450 mV between the heated oxygen sensor (HO2S) high signal circuit and the HO2S low reference circuit. When measured with a 10 mega ohm digital voltmeter, this may display as low as 350 mV. The oxygen sensor signal varies from about 800 mV when the exhaust is rich, to about 50 mV when the exhaust is lean.

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