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Old 09-30-2019, 09:47 PM   #1 (permalink)
Zippy76
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C5500 fuel tank wiring

Hey guys
I have an 09 C5500 I'm currently (finally) putting a flatbed on.
I ve got the bed all modified (shortened) and side tank installed but was wondering if anyone had any knowledge on wiring up the fuel gauge to the side tank? The original plug has 4 wires and the side tank has 2?
Here's some pics too. 20190908_113237_1569894171717.jpg20190922_184817_1569894314334.jpg

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Old 09-30-2019, 10:36 PM   #2 (permalink)
rdminter
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Maybe they wired the plug for the 2 tank option.

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Old 10-02-2019, 12:20 PM   #3 (permalink)
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Quote:
Originally Posted by rdminter View Post
Maybe they wired the plug for the 2 tank option.

That's my thought, I believe the 2 tank trucks have a transfer pump. I would suspect the that 2 are for the level sender and the other 2 for a transfer pump.
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Old 10-02-2019, 02:26 PM   #4 (permalink)
rdminter
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pin 36 purple wire coming from the pcm control module connector is the primary fuel sensor wire. You should be able to hook up a meter and beep the connector and find which wire this is on the tank end. Then you should be able to find the ground wire and hook these two up for your fuel tank.
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06 c4500 lly monroe hauler body, preditor tuner,
air bags, air seats. 32ft chalenger 5th wheel 13k with trailersaver airhitch, fuel rail shim. airdog
raptor lift pump, egt guage. Equal tire balancing system.
Prodigy wireless brake controller. Iridium Sat phone, pcv reroute, boost guage.
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