Question about 2006 Chevrolet HHR

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Going to keep it simple since it started up again and is running, Chances are the fuel filter has come to the end of it's life and needs to be replaced. After saying this you may get away with filling the gas tank a few times and adding fuel injector cleaner to the gas since the new style fuel pump with the filter is also know as self cleaning filters and is good for life till the electric pump fails it self, which has an average life of 150,000 miles. You can get more life out of the pump if you run more then half a tank of gas always, the gas it self is what keeps the electric pump cool and less gas means hotter running fuel pump. 
GM has stopped putting in-line filters in some models since 2004. Other manufacturers have been doing it longer. The fuel sender assembly (pump/regualtor/sock/level sensor) inside the tank has a container on the bottom of it about the size of 1/2 coffee can. All the fuel pick up components are inside of this container. It has a small intake port in the very bottom that filters the bigger debris so that the fuel that is filling the container is fairly clean. The fuel fills the container and a sock(filter) is used at the end of the fuel pumps pick-up tube. Smaller debris that makes it to the sock is then filtered by the sock before entering the fuel pump and simply falls to the bottom of the container.

Todays pumps are much more robust then pumps of old also. We still see more failures of the old style pumps with in-line fuel filters then we do of the newer style. GM calls this a self cleaning system. Any debris that does not go into the canister of the fuel pump assembly falls to the bottom of the tank and any debris that the sock stops falls to the bottom of the canister when the fuel pump is shut off. We are talking very small amounts of debris here too.

Good luck and hope this helps and like mentioned, try running the HHR with more then half a tank of gas and adding fuel injector cleaner for now. 

Posted on Jul 16, 2009

  • julie warnick Jun 26, 2013

    i ran my 2007 hhr out of gas, guage said above empty...anyways i fill it halfway it turns over fine...but wont start back up.....what can i do?...iv left key on trying to get pump to send gas it the relay?...or fuel pump???...please send any info to thank u.



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