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Tech & Fab
5.3 No throttle
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<blockquote data-quote="Beerj" data-source="post: 748604" data-attributes="member: 10035"><p>Small update. So I talked to the harness builder and he asked if the brake switch wiring was connected, which it's not. He suggested at least grounding the yellow wire which would usually be connected to 12v when brakes applied. Now, instead of losing all pedal, it goes into limp mode and limited to 1300 rpm. Still throws the U0107 code. He also suggested that I use dielectric grease on all of the throttle/tac plugs which I did but no difference there. He says my components are all correct (metal pedal, metal tabs on tac and computer flashed as an 04) but I have my doubts. Seems like most people with my current symptoms end up swapping out the tac, pedal or both. Everyone else finds a common broken wire near the throttle body but that's only on the factory harness. The other thing that makes me wonder is if I search for an 04 Silverado tac module, it brings up both metal and plastic mounting tab versions. So tac seems to be the most plausible at this point.</p></blockquote><p></p>
[QUOTE="Beerj, post: 748604, member: 10035"] Small update. So I talked to the harness builder and he asked if the brake switch wiring was connected, which it's not. He suggested at least grounding the yellow wire which would usually be connected to 12v when brakes applied. Now, instead of losing all pedal, it goes into limp mode and limited to 1300 rpm. Still throws the U0107 code. He also suggested that I use dielectric grease on all of the throttle/tac plugs which I did but no difference there. He says my components are all correct (metal pedal, metal tabs on tac and computer flashed as an 04) but I have my doubts. Seems like most people with my current symptoms end up swapping out the tac, pedal or both. Everyone else finds a common broken wire near the throttle body but that's only on the factory harness. The other thing that makes me wonder is if I search for an 04 Silverado tac module, it brings up both metal and plastic mounting tab versions. So tac seems to be the most plausible at this point. [/QUOTE]
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