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Thread: sending unit shorted out....
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08-10-2020, 09:45 AM #1LTX Master
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- 1994 z28 2005 gxp
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sending unit shorted out....
well that was scary... started tuning my idle and after a couple starts the pump stopped working. pulled it out and the connector shorted out and even dropped a spark onto the fuel filter... also no clue why everything rusted to shit. i pulled the old 255lph pump out a few years ago and it was clean. and that was with 10 year old gas in it.
sendingunit.jpgpump.jpg
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08-10-2020, 11:33 AM #2LTx Guru
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- Fred
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Ethanol content of E10 pump gas picks up moisture and causes corrosion.
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08-10-2020, 02:24 PM #3LTX Master
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08-10-2020, 04:52 PM #4LTx Guru
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On the other hand, I have a "new" sending unit (frame only, no pump) that I bought to get a new level sensor, 20 years ago when they were not available separately. Just sitting in my garage it has started to corrode.
I haven't started my Formula in more than 5 years. I hate to think of what the old gas - a blend of pump gas and VP Fuels C16 + Air Race - may have done to the modified tank, dual pumps (one in tank, one outboard off a sump on the stock tank), billet fuel filter, outboard FPR, and 74# injectors. I won't start it until I clean the fuel system, and I'm getting too old to crawl around under and over the car.
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08-11-2020, 12:40 PM #5LTX Master
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thanks but i just bought this.
https://aeromotiveinc.com/product/ge...-93-97-camaro/
figured how rusty everything was i should probably replace the tank and pump. sad the pump has maybe 10 minutes on it.
plus the gm sending unit scares me since it shorted out inside the tank.
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