EGR System Malfunction
Thread Starter
|
Senior User
Joined: Sep 2007
Posts: 288
Likes: 0
EGR System Malfunction
6.0 diesel motor- Recently I have had a tone change coming out of the exhaust. The truck usually has a hissing turbo sound. Sometimes it changes to a sound of a gas motor then reverts back and forth. I have traced it to the EGR system. I have been running the truck with the EGR electric motor unplugged and the sound is back to normal and the truck runs great. I think the EGR system is dirty and clogged. What method and what parts need to be removed to clean the system. Also what would be used to clean the parts.
Hotshot
Joined: Dec 2003
Posts: 15,369
Likes: 121
From: Stuttgart, Ar
Lots of information in the 6.0 diesel forum on this.
The turbo changing tones can be from the EGR but there's also a computer strategy that cycles the turbo vanes to help keep them from sticking due to carbon.
To clean the EGR valve you need a 10mm socket and a lady's foot crowbar OR a length of wire and a long prybar to get it out. You'll also need to pick up some EGR valve o-rings. Use CARB CLEANER (not brake cleaner) to clean the EGR valve with. Clean it in an UPRIGHT position so that the cleaner doesn't get into the weep holes and ruin the electronics of the vave. Replace the o-rings and reinstall.
The turbo changing tones can be from the EGR but there's also a computer strategy that cycles the turbo vanes to help keep them from sticking due to carbon.
To clean the EGR valve you need a 10mm socket and a lady's foot crowbar OR a length of wire and a long prybar to get it out. You'll also need to pick up some EGR valve o-rings. Use CARB CLEANER (not brake cleaner) to clean the EGR valve with. Clean it in an UPRIGHT position so that the cleaner doesn't get into the weep holes and ruin the electronics of the vave. Replace the o-rings and reinstall.
Elder User
Joined: Aug 2009
Posts: 905
Likes: 0
From: Inverness, Fl
Egr Valve is all one unit. The EGR Seal Kit Gasket and o-rings part number <!--[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]--><!--[if gte mso 9]><xml> <w:LatentStyles DefLockedState="false" LatentStyleCount="156"> </w:LatentStyles> </xml><![endif]--><!--[if gte mso 10]> <style> /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;} </style> <![endif]-->3C3Z-9P455-AB about 6-7 bucks
ontGrowAutofit/> </w:Compatibility> <w:BrowserLevel>MicrosoftInternetExplorer4</w:BrowserLevel> </w:WordDocument> </xml><![endif]--><!--[if gte mso 9]><xml> <w:LatentStyles DefLockedState="false" LatentStyleCount="156"> </w:LatentStyles> </xml><![endif]--><!--[if gte mso 10]> <style> /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;} </style> <![endif]-->3C3Z-9P455-AB about 6-7 bucks
Thread
Thread Starter
Forum
Replies
Last Post
Targa185
335 Series- 5.8/351M, 6.6/400, 351 Cleveland
4
Feb 10, 2015 02:04 AM
mse871859949
1973 - 1979 F-100 & Larger F-Series Trucks
8
Jun 15, 2014 11:52 PM
