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Junior Member
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111 Posts
Discussion Starter #1
Hello all
My 08 350 spartan tuned (250) sb intake truck has a intermitten sound in the exhaust at idle and under exceleration. Sounds like a blower of some sort comes on for a minuet or two and shuts off for a bit then comes back on. Im not sure what the egr does but is it that? Hasnt always done this. Started about a year ago.
Thanks
 

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Senior Member
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606 Posts
At idle that might be the EGR cycling. This is done to prevent it from sticking due to carbon build up.
 

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Senior Member
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606 Posts
Thanks. What are the pros and cons of a egr delete? Truck sounds like a shop vac when it is on.
The pros are, you will be eliminating the EGR coolers. A possible source of coolant leak. Cons, if your truck needs to be smoged, it won't pass.
 

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ADMIN/MAFIA
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4,834 Posts
Is it the vanes of the turbo opening and closing?
 

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Junior Member
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111 Posts
Discussion Starter #7
Vaccume sound is getting louder and staying on. EGR stuck? Thinking of delete. No smog here.
 
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