While several of us " club" guys are helping a fellow buddy pull out a V-6 from a 85 GT, we noticed a metal plate on the inner side of the trunk lid with " the hump". We assume its a heat shield and has a wire attached to it. No one can fiqure out what this wires function is and cannot find any reference in all the manuals or books. Any ideas would be appreciated.

EMI/RFI shielding I imagine.

Interesting..we will check this out. Thanks Patrick..if it turns out as you stated... " Were do we send the free beer and pizza ???"

quote Originally posted by 85fieroguy: Where do we send the free beer and pizza ???

quote Originally posted by Patrick: EMI/RFI shielding I imagine.

Yes.
Wire ends @ G401 right next to left hinge.

Is on Ground Dist diag in most books.

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Dr. Ian Malcolm: Yeah, but your scientists were so preoccupied with whether or not they could, they didn't stop to think if they should.
(Jurassic Park)

The Ogre's Fiero Cave (It's also at the top and bottom of every forum page...)

PATRICK and THEOGRE..thanks for the info., never did find the G401 or " metal plate" in the manuals. Last question. So..you modify your trunk lid with a scoop or underneath mirror ( whatever), what does that do when you illuminate the metal plate and connection? Again, thanks for your inputs. As for the Pizza, will buy Cliff a beer.....P.S. understand Vancouver is a beautiful area.

illuminate? The metal plate is grounded...that's all.

I removed mine from one of my previous cars. Heard some ignition and other electrical noise in the AM radio. (Didn't really pay attention before I did that, so I can't make a before/after comparison.)

My current car doesn't even have one. Or if it does, it's not connected. No big deal. (I don't listen to AM much, anymore.)

quote Originally posted by Gall757: illuminate? The metal plate is grounded...that's all.

Usually when I illuminate the plate, it becomes more visible.

ILluminate = Eliminate.

Shielding of some kind is often used on non-metallic engine covers. Metal engine covers are natural filters if they are solidly grounded to the body of the car. Remove the plate. I don't think the 88's have one. Like Raydar says, you notice spark plug and other ignition noise on AM radio frequencies if ignition systems are weak. Just use the absence of the plate as a diagnostic tool. When you start getting ignition noise on your AM radio, you know it's time to do a tuneup.

quote Originally posted by fierofool: I don't think the 88's have one.

The '88 shield is inside the deck lid. There's still a wire & connector.

The Enthusiasts Guide states: "No metal RF shield attached to underside of deck lid - deck lid impregnated with RF shielding material."

[This message has been edited by David Hambleton (edited 11-07-2015).]