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Mike S., Chevy Mechanic
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Experience:  ASE Certified Master Technician
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2008 malibu classic: The check engine light came..fuel gauge..alarm

Customer Question

I have a 2008 malibu classic. The check engine light came on shortly after my fuel gauge fell to empty. The low fuel alarm also went off. My gas tank was full because I had just filled up. Local repair diagnosed as fuel sending unit which is part of the fuel pump. I called nearest dealer who told me that it is only a sending unit. How do I know for sure whether I need a whole fuel pump assembly or just a fuel sending unit?
Submitted: 3 years ago.
Category: Chevy
Expert:  Mike S. replied 3 years ago.

Most of the time people usually only replace either the fuel pump or the level sender because they are 2 different parts but usually get connected to eachother. The reason people only buy what is needed is cause the unnessary part is more expensive when added to the cost. In this case, it appears places like autozone sell the whole assembly as 1 unit, the fuel pump and the level sensor. Together that would cost, $516.99. I found just the level sensor at a different website for $70. 25. I don't see any need to replace the fuel pump if it is just the level that is off.

http://www.autozone.com/autozone/parts/Airtex-Master-Fuel-Pump/2008-Chevrolet-Malibu-Classic/_/N-jsp6dZ8vcz2?counter=0&filterByKeyWord=fuel+pump&fromString=search&itemIdentifier=955355_5356_0_

Price:$516.99

http://www.gm-partscenter.com/partlocator/index.cfm?action=getJointLocator&siteid=215875&chapter=&Sectionids=6,2782&groupid=2783&subgroupid=2597&componentid=0&make=6&model=Malibu Classic&year=2008&graphicID=CP08555&callout=10&catalogid=2&displayCatalogid=0

Level sensor - Federal - Federal
08-09 $70.25

Part Illustration

 

Mike S., Chevy Mechanic
Category: Chevy
Satisfied Customers: 4988
Experience: ASE Certified Master Technician
Mike S. and 6 other Chevy Specialists are ready to help you
Expert:  Mike S. replied 3 years ago.

Here is another picture of it, number 26.

26**153328SENSOR KIT FUEL LVL,(INCLS 30),(SUPPLIER IS ABC.)Z(69) (LAT)081$66.52

http://www.gmpartsgiant.com/Page_Product/PartDetail.aspx?modelYear=2008&model=Malibu&make=Chevrolet&catalogCode=1Z2&subModel=New%20Model&majorIndexID=03&minorIndexID=1Z0302901&isBigPicture=False&ddlSm=New%20Model

For, 2008 Chevrolet Malibu testing Fuel Level Sending Unit, click here.

For, 2008 Chevrolet Malibu Fuel Level Sending Unit, Removal & Installation, click here.

Also, if the code was P0461, click here for tsb 2008 Chevrolet Malibu Fuel gauge not reading full. It says, "The fuel gauge does not rise above the 3/4 mark after a fill up.This condition may be caused by a fuel vapor vent line (that is internal to the fuel tank)
obstructing the travel of the fuel level sensor float arm."

Here is another tsb on, 2008 Chevrolet Malibu Fuel gauge incorrect, click here, it says, " If P0455, P0461 Set, Reposition Fuel Vapor Line.

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