Tunnel Plate Removal
Thread Starter
Intermediate
Joined: Mar 2005
Posts: 48
Likes: 0
Tunnel Plate Removal
I am thinking about removing the tunnel plat on my 98 auto. Does anyone have the proceedure and/or pics? There is a pretty good skweak under the center of the car and I want to investigate. Thanks.
Melting Slicks
Joined: Oct 2001
Posts: 2,320
Likes: 2
From: Salem Oregon
It is real easy. Car in air, drop h-pipe, then you will see all the bolts that hold the plate on. Just make sure you unplug the o2 sensors before dropping the h-pipe. Take your time and it will be a piece of cake.
Melting Slicks
Joined: Jul 2007
Posts: 2,939
Likes: 7
From: Simpsonville SC
St. Jude Donor '09-'10
Not a hard process... On my 99, I unbolted the exhaust pipes from my headers, then unboltend them from the cat-back, then removed two bolts holding these two pipes up with springs.
Then, just unbolt the million bolts for the tunnel plate and it drops right out.
This is my X-Pipe that I removed:
Then, just unbolt the million bolts for the tunnel plate and it drops right out.
This is my X-Pipe that I removed:
Thread Starter
Intermediate
Joined: Mar 2005
Posts: 48
Likes: 0
Thanks sounds easy. I did notice the million bolts on the plate last week when I did the oil change and fuel filter change (a real PITA!). Is a special tool needed for the O2 sensors, I've never removed them on any car.
AMP Racing
Joined: Aug 2006
Posts: 10,756
Likes: 589
From: Washington TWP NJ
2023 C5 of the Year Finalist - Modified
2017 C5 of Year Finalist
St. Jude Donor '09-'10-'11-'12
I reused mine, but I would guess it depends on how much time you've got on them?
Are they still somewhat pliable?
Are they still somewhat pliable?
Team Owner
Joined: Sep 2001
Posts: 23,283
Likes: 906
From: Lake Elsinore, CA
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Drifting
Joined: May 2004
Posts: 1,783
Likes: 0
From: Coral Springs Fl
One great mod that I would recommend while you have the plate out is to insulate from the firewall back to the tranny with heat shield. You can get a roll along with a can of spray adhesive cheap and it really helps with heat on your leg and driveline noises. I have had my C5 apart many times and this is one of the best cheap mods I have ever done. Just an FYI!
Melting Slicks
Joined: Oct 2007
Posts: 2,464
Likes: 2
From: Cedarburg, WI
