Temp Gauge Sender Location???? - Ford Powerstroke Diesel Forum

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post #1 of 11 Old 08-15-2010, 05:07 PM Thread Starter
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Temp Gauge Sender Location????

Hi, I am installing a trans temp gauge and was debating where to install the sensor. looks like I could use the test port, pan, or inlet line to cooler. Where would I get the most meaningful reading? I'd like to monitor the hottest fluid and am I correct in thinking this would be the inlet line to the cooler? Would the temps vary much at these different locations? Thank You.
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post #2 of 11 Old 08-16-2010, 09:51 PM
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Most use the test port I would use that

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post #3 of 11 Old 08-21-2010, 01:16 PM
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The front line comeing out of the trans is the hottest. The pressure port on the left side will give you the trans temp. I personally don't like the pressure port because it has 300lb of pressure in reverse.
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post #4 of 11 Old 08-21-2010, 01:35 PM
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300psi?
Don't think that's right



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post #5 of 11 Old 08-21-2010, 01:40 PM
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In drive they push about 40ish. Why would reverse be 300?



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post #6 of 11 Old 08-21-2010, 06:59 PM
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I personaly like the pan considering this is the temp of the fluid my trans is using.
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post #7 of 11 Old 08-22-2010, 04:36 AM
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jesilvas, 40 psi won't even pull on level ground. Minium at idle is 60. Put you a 100lb guage on that port, put it in rev and watch it blow to pieces. My truck is on the rack, I might just post a picture.
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post #8 of 11 Old 08-22-2010, 05:55 AM
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Well I didn't know. I know at work when we flush transmissions, we hook into the lines and at idle most transmissions push 40psi. Allisons are about 50 on our gauge. I just wonder how, with that much pressure, the rubber lines at the cooler are held onto the hard lines by little pinch clamps, not hose clamps?



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post #9 of 11 Old 08-22-2010, 10:32 AM
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You are correct on the cooler lines. That circuit is regulated to a much lower pressure. I think 90 is the most I've ever seen.
I just looked up the pressure chart. In dr, max throttle, line pressure is 170 psi. Manual low max is 270 psi and rev max is 250 psi. these are factory specs. If you have any type of programmer, they will be higher.
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post #10 of 11 Old 08-22-2010, 11:02 AM
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Oh ok I gotcha. We were talking about different things. Within the trans, pressures are a lot higher but within the cooling circuit they are low right?



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