Has anyone experienced intake backfire explosion that actually blew out front of intake if so did you find out the cause?
Intake explosion
Gawildside
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Has anyone experienced intake backfire explosion that actually blew out front of intake if so did you find out the cause?
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Give some more information, year and mods.
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Was nos involved?
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^ my first thought
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2003 4x4 150000 miles ran fine all stock turned key spun over half turn it exploded
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My guess is a intake valve stuck open and when the cylinder fired it blew into the manifold. I had a back fire on start up a long time ago after the truck sat at the airport for three weeks. And again on the way out of the parking lot. Didn't break the manifold, but I think it was a close call.
In your case I would do a compression check before firing the next time.
In your case I would do a compression check before firing the next time.
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Pulled heads had them redone no bad valves or springs did compression check before I pulled them good compression on all cylinders waiting on new intake I'll put back together and hope it doesn't do it again
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Maybe a spark plug wire plugged into the wrong cylinder?
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With new valve springs and valve job you should be good.
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That's a weird one for sure. Go a step further for good measure and replace the purge valve on the truck near the lower battery area. They have been known to sometimes stick open and on a refill of fuel get fuel in the line and sick that into the intake essentially making an injection bomb possibly. Changing that and having the heads done pretty much covers any possible issue
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Thank you for that info that's about most reasonable explanation I have heard since I have checked everything thing else I can think of
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It could, but a more typical cause is a broken intake valve.
Gawildside
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