Removing plenum
Thread Starter
Safety Car
Joined: Oct 2003
Posts: 3,939
Likes: 14
From: Baltimore Md.
Removing plenum
Just got a '19 GS and was wondering if anyone recently changed their plenum and did they have a hard time doing it. I read old threads but just wondering if the latest cars are any easier, thanks
Racer
Joined: Jun 2017
Posts: 388
Likes: 73
From: Idaho
Vacuum brake line is a pain to remove...
You will have to cut some of the fasteners for the injector wires
Removed it to inspect my intake valves last summer, and now I will have to remove it again because I bought an MSD Atomic Air Force Intake manifold
You will have to cut some of the fasteners for the injector wires
Removed it to inspect my intake valves last summer, and now I will have to remove it again because I bought an MSD Atomic Air Force Intake manifold
Last edited by Steve Garrett; Apr 20, 2018 at 10:12 PM.
Thread Starter
Safety Car
Joined: Oct 2003
Posts: 3,939
Likes: 14
From: Baltimore Md.
Racer
Joined: Jun 2017
Posts: 388
Likes: 73
From: Idaho
Removed it yesterday night, it took me 45 min, the vacuum brake line fitting was not too bad to remove in fact, it's just a standard push to connect fitting. The tricky part in my opinion is to move the plenum enough to access to this fitting.
Not a lot of carbon build up on my intake valves at 4500 miles, just some at the valves stems.
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Racer
Joined: Aug 2009
Posts: 267
Likes: 71
From: Rohnert Park CA
Remove fuel rail covers, disconnect the wiring going through it, 4 bolts and cut the wiring harness holders on the bottom. Not very hard at all. Hardest part was not scratching the newly painted plenum cover. Took me 30 mins to uninstall and reinstall everything
Racer
Joined: Jun 2017
Posts: 388
Likes: 73
From: Idaho
I was thinking we talked about removing the intake manifold....plenum is also the other name for intake manifold, at least in my previous Japanese car world....
So just the plenum as you call it it’s a piece of cake. The intake manifold is a little bit more work
So just the plenum as you call it it’s a piece of cake. The intake manifold is a little bit more work