2010 HHR LS engine surges

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09-10-2018, 12:15 PM

solman98

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Join Date: 07-17-2006

Location: Dallas, GA

Posts: 6,050

2010 HHR LS engine surges

My nephew picked up a 2010 LS 2.2 auto 93K over the weekend. Didn't notice anything odd on the hour or so drive back home. I'm guessing at some point yesterday he noticed the engine surging. RPM's just rising and dropping at times. No power when it happens. No CEL and I've told them to get it read any incase of stored codes.

Haven't heard back from him or my brother, but any ideas?

Bought in SC and had some sort of TX carpool decal on the windshield. I'm hoping he didn't pick up some flood victim.

09-10-2018, 12:21 PM

donbrew

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Join Date: 01-23-2009

Location: Fredericksburg,VA

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When idling or when driving? I.E.: Motor or trans?
Dirty TB?

09-10-2018, 12:31 PM

solman98

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Join Date: 07-17-2006

Location: Dallas, GA

Posts: 6,050

My brother called me on it asking if I had any idea. The TB is a good place to start. While driving as they stated no power then it was happening, but stated it was intermittingly.

09-10-2018, 01:13 PM

Oldblue

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Join Date: 10-13-2011

Location: Welland,Ont Canada

Posts: 36,569

Have them clean the MAF and throttle body, and double check ground wires and electrical connections. A battery lobotomy and a battery load test may point to a low voltage issue.

at that mileage and year check the plugs, air filter, cabin air filter and VVT Solenoids.