itsbo1313
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Does anyone know what the cover/shield is for attached to the back of the intake manifold? Between the manifold and the firewall.
Intake manifold
- Thread starter itsbo1313
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mikeyss
Full Access Member
I think it's for sound deadening. I removed mine when I added 4 corner steam kit to my engine, and that cover got in the way. I haven't noticed anything different with it removed
I always figured it was there to protect the plastic intake manifold from the heat that funnels up through the transmission tunnel from the cats when sitting and idling for a long time in hot weather. No idea, but I'm glad you haven't found any negative effects from removing it. I may remove mine if I ever have to remove the intake manifold again.
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itsbo1313
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How long have you had it off?
mikeyss
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The GM vans do not use that part and their cats are located about the same distance away.
I have had that cover off since I've installed my new engine back in March. I have drove it in 110 degree weather, had it at 11k altitude, and also have been off-road with it this way. There have been no issues. I am about to take a 3600 round trip with it next week, I don't foresee any issues.
I learn something new here every day. Good to know. Next time that manifold comes off, that shield is going into the recycling bin.
Safe travels on your trip. We're heading out on Saturday for a 4500 mile trip west, staying in Longmont for a few days at the end of August/early September. Gonna hit the West Side Tavern and spend some time with old friends. When we lived in west Old Town, we walked there from our house on Judson several times a week.
mikeyss
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I live in Longmont! I am about to head east, back to Steelton, PA
And I grew up in Pittsburgh! Great minds…
I think it is there to make removing the oil pressure sensor a real pain in the neck. Maybe some other purpose as well, but I think that is the primary purpose.
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itsbo1313
Full Access Member
That’s why we left it off!I think it is there to make removing the oil pressure sensor a real pain in the neck. Maybe some other purpose as well, but I think that is the primary purpose.
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