Liquid in 4th cylinder

Reply Subscribe

Thread Tools

Search this Thread

January 31st, 2012, 10:44 PM

Bry8821

CF Beginner

Thread Starter

Join Date: Jan 2012

Posts: 1

Likes: 0

Received 0 Likes on 0 Posts

Liquid in 4th cylinder

<!--[if gte mso 9]><xml> <w:WordDocument> <w:View>Normal</w:View> <w:Zoom>0</w:Zoom> <w:TrackMoves/> <w:TrackFormatting/> <w:PunctuationKerning/> <w:ValidateAgainstSchemas/> <w:SaveIfXMLInvalid>false</w:SaveIfXMLInvalid> <w:IgnoreMixedContent>false</w:IgnoreMixedContent> <w:AlwaysShowPlaceholderText>false</w:AlwaysShowPlaceholderText> <w

oNotPromoteQF/> <w:LidThemeOther>EN-US</w:LidThemeOther> <w:LidThemeAsian>X-NONE</w:LidThemeAsian> <w:LidThemeComplexScript>X-NONE</w:LidThemeComplexScript> <w:Compatibility> <w:BreakWrappedTables/> <w:SnapToGridInCell/> <w:WrapTextWithPunct/> <w:UseAsianBreakRules/> <w

ontGrowAutofit/> <w:SplitPgBreakAndParaMark/> <w:EnableOpenTypeKerning/> <w

ontFlipMirrorIndents/> <w:OverrideTableStyleHps/> </w:Compatibility> <m:mathPr> <m:mathFont m:val="Cambria Math"/> <m:brkBin m:val="before"/> <m:brkBinSub m:val="--"/> <m:smallFrac m:val="off"/> <m:dispDef/> <m:lMargin m:val="0"/> <m:rMargin m:val="0"/> <m:defJc m:val="centerGroup"/> <m:wrapIndent m:val="1440"/> <m:intLim m:val="subSup"/> <m:naryLim m:val="undOvr"/> </m:mathPr></w:WordDocument> </xml><![endif]--> Liquid is getting into the 4<sup>th</sup> cylinder of my 2007 chevy cobalt and causing misfires. It doesn’t smell or look like coolant or oil. If I take out the coil and spark plug, dry them and drain the liquid it works fine for a while. It seems to misfire more frequently when it rains or snows a lot, but I can’t see how any liquid could be running off the top and ending up in the cylinder. There’s been no recent damage to the car; however, the head was unnecessarily resurfaced about 5 months ago by a mechanic, but worked fine until recently. I’m hoping this isn’t a crack in the head or a bigger problem. Any ideas on why this is happening and how to fix it would be very helpful. Thanks.

Reply Like

January 31st, 2012, 11:18 PM

EinST

CF Veteran

Join Date: Mar 2011

Posts: 1,709

Likes: 0

Received 3 Likes on 3 Posts

Welcome to the forum.

It sounds like you got water contamination in your fuel. Due to the hydroscopic nature of ethanol, water contamination of E10 gas is more common than with straight gas. What gets into the fuel rail tends to accumulate there and slosh around. Try filling it up with name-brand gas and mix in a couple bottles of dry gas (gas line antifreeze, if you will).

Reply Like

February 1st, 2012, 4:37 PM

Chevrolet Customer Service

Official GM Rep

Join Date: Mar 2010

Location: Global Headquarters in Detroit, MI

Posts: 4,163

Likes: 0

Received 25 Likes on 22 Posts

<!--[if gte mso 9]><xml> <w:WordDocument> <w:View>Normal</w:View> <w:Zoom>0</w:Zoom> <w:PunctuationKerning/> <w:ValidateAgainstSchemas/> <w:SaveIfXMLInvalid>false</w:SaveIfXMLInvalid> <w:IgnoreMixedContent>false</w:IgnoreMixedContent> <w:AlwaysShowPlaceholderText>false</w:AlwaysShowPlaceholderText> <w:Compatibility> <w:BreakWrappedTables/> <w:SnapToGridInCell/> <w:WrapTextWithPunct/> <w:UseAsianBreakRules/> <w

ontGrowAutofit/> </w:Compatibility> <w:BrowserLevel>MicrosoftInternetExplorer4</w:BrowserLevel> </w:WordDocument> </xml><![endif]--> Bry8821,

EinST offers a great suggestion. However, if that doesn't fix the issue, you may consider taking the vehicle in for an inspection.

Please keep us posted.

If you have additional questions, please feel free to contact me.

Louis
GM Customer Service