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    Truck or Trailer

    x3 on a ground issue they seller a tester at walmart and other places that plugs into your truck where you would plug in your trailer lights. it has leds on it and you can test each function left turn, right turn, brake, parking, and all the combonations. the tester is about the size of a...
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    fan blower and on star

    mine only worked on 5 also. i swapped out the resistor and it works fine now. make sure to replace your cabin air filters too, for 2 reasons. 1-probly the reason why your resistor fried up is because if your filters are dirty/clogged the resistors overheat because theres no or not enough...
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    01 tahoe oil pressure gauge constantly moving!

    my 2000 does the same thing. at idle speed its really eratic and bounces all over the place. when im doing 1500-2000rpm (cruising speeds) it seems to be more steady. i am guessing its the oil sending unit, also called the oil pressure switch (i believe) thats the culprit. its the sensor that...
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    3RD brake light

    the 3rd brake light is not serviceable. its a sealed unit with leds in it, not regular bulbs. when they fail its usually because moisture got into it and fried the board. dont go to the dealer for a new one. that will cost you $200+. i ordered one from amazon for about $50 and its been...
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