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5.4 troubleshooting

 
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Old 02-15-2019, 08:36 PM
Rumble phish
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Gurgle sound

Originally Posted by Wvdieselcrawler View Post
As to the 'gurgle' sound, can anybody explain how or why it happens, can hear it in the cab...
The "gurgle" comes from getting air into the coolant system. You most likely have a slight leak at either your head gasket or your upper intake gasket. When your engine cools down, it pulls air in via the leak at the gasket. ItsI a good bet that if you do a combustion gas test in your coolant system it'll come up positive. Not the end-all tells of a head gasket leak, but a fairly reliable indicator .
 

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