Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2008HHR LT, 2.4 P, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 176 (FUEL SYSTEM & EMISSIONS SYSTEM)SYSTEM DESCRIPTIONEFFECTIVE CONTROLIMA (INTEGRATED MOTOR ASSIST)
2008 Chevrolet HHR LT, 2.4 P, Automatic
IMA (Integrated Motor Assist)
2008 Chevrolet HHR LT, 2.4 P, AutomaticSECTION IMA (Integrated Motor Assist)
WARNING: This page is about a different car, the 2011 Honda Insight and 2010 Honda Insight. However, it is still accessible from the selected car via links, so may be relevant.
The conditions for auto idle stop are expanded, regenerative braking during deceleration is increased, and power to the IPU (intelligent power unit) fan is increased (see AUTO IDLE STOP SYSTEM ).
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.