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Registered
1991 Cadillac Deville 208K miles
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80 Posts
Discussion Starter #1
Where is the PCV Valve on the 4.9L engine? I can't find it and the only book i have tells me where it is on the northstar. I've looked everywhere on the engine.. help!
 

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Super Moderator
2010 DTS
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87,564 Posts
On top. It should have a 3/4" dia. rubber hose going to it. It's been a long time since I've had a 4.9, but I believe that is where it is. Someone with one (or a better memory) will correct me if I am wrong.
 

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69 Thunderbird | 90 Seville | 03 Corolla | 89 Marquis(scrapped) | 72 Torino(scrapped)
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2,026 Posts
Its on the front valve cover, right hand side. Its under the top beauty cover if you have one. If it rattles when you shake it, its good.
 

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Registered
93 Sedan Deville 4.9L
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1,005 Posts
Yeah, pop the cover over the plug wires off and you will see it, Its on the drivers side at the end of the metal pipe that runs across the front of the engine.
 
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