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Broken valve spring


Eroc

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Can anyone tell me why my engine would break a valve spring on the #1 cylinder?
 


stmitch

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Thats pretty uncommon. How many miles does the truck have?
 

Eroc

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It has roughly 85,000 and it's an '04. It did this all of a sudden not a gradual thing I would have noticed.
 

gearbangin

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My guess is manufactures defect. Are u sure its the spring not the valve?
 

TomB1269

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Over Reving can cause valve train damage real fast, miss a shift near redline, pull to low a gear at to high a speed, etc.
 

Eroc

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My guess is manufactures defect. Are u sure its the spring not the valve?
I know its the spring cause I have the broken one in my hand. What exactly do you consider to be over revving? As far as I can remember I have never pushed it past 4500 RPM's.
 

Big Jim M

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You just drew the short straw! It is more than one in a million. Prolly a factory defect that wasn't caught by the inspection department.
Big JIm
 

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