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cold start noise

Tristan Hake

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Tristan Hake Enthusiast

Tristan Hake

Posted
Posted

anyone ever experience this issue? after the truck sits overnight, i come out in the morning start and hear a noise after the vehicle fires. this is only on the first start after sitting

  • 2 weeks later...
  • 8 months later...
1Sierra6 New Member

1Sierra6

Posted
Posted

my 2016 sierra with 5.3 makes similar rasppy noise for a few seconds upon first start of the day after sitting all night...sounds like a bearing noise... most noticeable using remote starter standing next to truck.... its posted somewhere that this is being caused by the new style oil pump... fills with air after sitting due to oil drain back... ..

 

anyone else experiencing this type of noise upon cold start...? my dealer had no answer or suggestion..... useless....

Rolling Thunder Enthusiast

Rolling Thunder

Posted
Posted

my 2016 sierra with 5.3 makes similar rasppy noise for a few seconds upon first start of the day after sitting all night...sounds like a bearing noise... most noticeable using remote starter standing next to truck.... its posted somewhere that this is being caused by the new style oil pump... fills with air after sitting due to oil drain back... ..

 

anyone else experiencing this type of noise upon cold start...? my dealer had no answer or suggestion..... useless....

 

If the GM automotive engineers / designers don't have a fix for the dealers how is a dealer supposed to fix it?

  • 3 years later...

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