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So i bought a really cheap used cb handheld to use as a sniffer and walked around my suburban with it. Sticking the antenna here and there trying to find the cause of my rfi woes. I found it, its comming from a wire harness under the back driver side fender. Its two wire looms that have the wires for all the rear tail lights etc, fuel pump i think, and some others to what i dont know, haven't investigated yet. Redid the ground under there, still rfi. Replaced the fuel pump, still rfi. I wonder what else it could be? The rfi seems to be radiating from the wires like an antenna. I was thinking for the hell of it, wrap the thing in foil tape to see what happens? Like an rf shield. Still waiting for dry warm weather so i can crawl under there and see where the wires go to. Any ideas? Something easy to try? I cant imagine the rear lights causing rfi

<blockquote data-quote="groundwire" data-source="post: 752642" data-attributes="member: 42117"><p>So i bought a really cheap used cb handheld to use as a sniffer and walked around my suburban&nbsp; with it. Sticking the antenna&nbsp; here and there trying to find the cause of my rfi woes. I found it, its comming from a wire harness under the back driver side fender. Its two wire looms that have the wires for all the rear tail lights etc, fuel pump i think, and some others to what i dont know, haven&#039;t investigated yet. Redid the ground under there, still rfi. Replaced the fuel pump, still rfi. I wonder what else it could be? The rfi seems to be radiating from the wires like an antenna. I was thinking for the hell of it, wrap the thing in foil tape to see what happens? Like an rf shield. Still waiting for dry warm weather so i can crawl under there and see where the wires go to. Any&nbsp; ideas? Something easy to try? I cant imagine the rear lights causing rfi</p></blockquote><p></p>

[QUOTE="groundwire, post: 752642, member: 42117"] So i bought a really cheap used cb handheld to use as a sniffer and walked around my suburban with it. Sticking the antenna here and there trying to find the cause of my rfi woes. I found it, its comming from a wire harness under the back driver side fender. Its two wire looms that have the wires for all the rear tail lights etc, fuel pump i think, and some others to what i dont know, haven't investigated yet. Redid the ground under there, still rfi. Replaced the fuel pump, still rfi. I wonder what else it could be? The rfi seems to be radiating from the wires like an antenna. I was thinking for the hell of it, wrap the thing in foil tape to see what happens? Like an rf shield. Still waiting for dry warm weather so i can crawl under there and see where the wires go to. Any ideas? Something easy to try? I cant imagine the rear lights causing rfi [/QUOTE]

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