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06-27-2014, 02:59 PM
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#1 |
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Registered User
Join Date: Dec 2013
Location: Ont Canada
Posts: 65
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Gauge sending units?
I have a cummins swap in my truck and would like to use gauges that are closer in range the cummins needs. I have collected a few different range oil press and water temp, do I need the senders for the particular gauge I want to use?
When I had the 60psi oil gauge in it, it would bury the needle. Does that mean that it has the 80 or 100 psi sender on the engine?
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1990 GMC R35 CC dually, VE cummins, 47RH 2005 Silverado ecsb, 5.3, 2/4 drop, daily work wagon 2000 Yukon xl, 5.3 all stock, wife's truck 2007 Yukon Denali, 6.2 back up truck |
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06-27-2014, 03:04 PM
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#2 |
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Registered User
Join Date: Apr 2014
Location: Bloomington Indiana
Posts: 1,041
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Re: Gauge sending units?
The senders have to match the gauges. The senders are a resistance: a particular resistance equals a certain value. The sender and the gauges have to agree on that resistance curve, or the readings are meaningless.
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Rich Weyand 1978 K10 RCSB DD. |
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06-28-2014, 04:06 PM
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#3 |
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Registered User
Join Date: Jul 2005
Location: centralia missouri
Posts: 123
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Re: Gauge sending units?
so how do you know what gauge works with what sender? do they have numbers on the gauge or is it guess and pray? I have never seen a listing for more than one oil sender the part number for the one on my pick up with a 60# gauge is the same number as my c70 with a 80# gauge.
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06-28-2014, 06:09 PM
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#4 |
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Registered User
Join Date: Dec 2013
Location: Ont Canada
Posts: 65
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Re: Gauge sending units?
I know my oil sender has 414kpa on one of the hex of the nut, my truck came with the 400kpa gauge, I would imagine that the 80/100 psi senders would be the same. As for the temp, my sender doesn't have a number on the side. I'm going back to the yard to grab the senders from the trucks I got the Gauges from, I'll post if there are numbers on those.
I think my senders are bad in my truck.
__________________
1990 GMC R35 CC dually, VE cummins, 47RH 2005 Silverado ecsb, 5.3, 2/4 drop, daily work wagon 2000 Yukon xl, 5.3 all stock, wife's truck 2007 Yukon Denali, 6.2 back up truck |
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06-29-2014, 06:05 PM
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#5 |
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Moderator
 
Join Date: Oct 2008
Location: Wentworth, NH
Posts: 4,975
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Re: Gauge sending units?
It's unlikely the Dodge or Cummins senders will have the correct scaled Ohmage over the Temp and Pressure ranges.
You need the senders for your GM truck. I ran a few bench checks on some working gauges for testing. The info is plotted on spreadsheet curves. Open Office 4 and Excel 2010 or later will open it. GM GAUGE_CURVES.xlsx
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1959 M35A2 LDT465-1D SOLD 1967 Dodge W200 B383, NP420/NP201 SOLD 1969 Dodge Polara 500 B383, A833 SOLD 1972 Ford F250 FE390, NP435/NP205 SOLD 1976 Chevy K20, 6.5L, NV4500/NP208 SOLD 1986 M1008 CUCV SOLD 2000 GMC C2500, TD6.5L, NV4500 2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263 2009 Impala SS LS4 V8 RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials...
And please let us know if and how your repairs were successful. |
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06-30-2014, 08:45 AM
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#6 |
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Registered User
Join Date: Dec 2013
Location: Ont Canada
Posts: 65
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Re: Gauge sending units?
I'm running the GM senders on the cummins. I'm going to put in new senders, than I'll mess with the different pressures and temps.
__________________
1990 GMC R35 CC dually, VE cummins, 47RH 2005 Silverado ecsb, 5.3, 2/4 drop, daily work wagon 2000 Yukon xl, 5.3 all stock, wife's truck 2007 Yukon Denali, 6.2 back up truck |
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