valve cover blows up
Banned Goober Smoocher
Joined: Jun 2010
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)And I just realized this is a 4.7....I know the early ones have magnesium covers. What do the later ones have? Aluminum?
Registered User
Joined: Jan 2021
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I recently experienced a very similar incident with the valve cover in my durango. I fill it up with non ethanol fuel. Would that be the cause? I had recently changed the rocker arms prior to this happening. I could post pics if needed. It still runs and drives but doesn't sound too good.
Record Breaker
Joined: Apr 2019
Posts: 1,680
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I recently experienced a very similar incident with the valve cover in my durango. I fill it up with non ethanol fuel. Would that be the cause? I had recently changed the rocker arms prior to this happening. I could post pics if needed. It still runs and drives but doesn't sound too good.
Registered User
Joined: Feb 2021
Posts: 1
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Mm 7 Dodge Dakota 4.7 blue off valve cover
So quick run down blew my head gasket had that fixed (117K).
Truck has been running fine, but I took the camper out this week end only a 30 min drive from home.
Heading there everything is good. coming home I see a check engine light come on. I'm driving up a long hill kinda steep. and check engine light comes on. Top the hill hook my code scanner to it and it shows a miss fire on 2.. I'm about halfway home and that's the worst hill so I puppy it home.
5 min from home I stop at a light a very small hill. when I pull away i get a loud BOOM a cloud of white smoke. Motor is still running I turn the corner quick and pull into a parking lot. Pop the hood and the valve cover is blown apart.
anyone have any insight, I'm thinking a back fire due to the misfire.
My buddy who does all my mechanic work (50 years as a mechanic) sees it and says he never saw a valve cover blow apart like that.
haven't gotten it apart yet to see if anything else is wrong but still only show a 302 code in the scanner.
Truck has been running fine, but I took the camper out this week end only a 30 min drive from home.
Heading there everything is good. coming home I see a check engine light come on. I'm driving up a long hill kinda steep. and check engine light comes on. Top the hill hook my code scanner to it and it shows a miss fire on 2.. I'm about halfway home and that's the worst hill so I puppy it home.
5 min from home I stop at a light a very small hill. when I pull away i get a loud BOOM a cloud of white smoke. Motor is still running I turn the corner quick and pull into a parking lot. Pop the hood and the valve cover is blown apart.
anyone have any insight, I'm thinking a back fire due to the misfire.
My buddy who does all my mechanic work (50 years as a mechanic) sees it and says he never saw a valve cover blow apart like that.
haven't gotten it apart yet to see if anything else is wrong but still only show a 302 code in the scanner.
Last edited by k carter; Feb 7, 2021 at 10:22 AM. Reason: Didn't get to put the body intothen understand when it says title I would assume you would want to just put in what you want to stay but there w or area for me to explain that I had the same situation
