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Also check your grounds. Especially the driver's side frame, right near the running board. A known issue, especially for guys in the rust belt.There is a known issue with the TB wires right where they connect to the TB. The wires inside the plastic jacket can break and although they look fine on a visual inspection the copper wiring inside can have a break. You should replace the pigtail and solder the wires together and use heat shrink so they don’t corrode, just in case. There is a TSB on it but I can’t find it. Amazon or most auto parts stores have the pigtails. Here’s a link to a discussion on it. If you search on TYF you can also find mention of it.