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#1
08-19-2006, 08:39 PM
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What do numbers on temp sender mean ?
I have two temp sending units for my 300D.
Exact same part number and markings like 120C. But on one of the hex flats is the number 9.79 the other sender has 6.81. Anybody know what this means ? My guage runs warmer than I am used to and I suspect that the engine is not overheating. The 6.81 marked sender is from my donor car, the 9.79 is from the original car and dash that I am using. Do these senders have OHM ratings ? Even though the part number matches ?
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80 300D 340K Owned 30 yrs 83 300SD 440K Owned 9 yrs - Daily Driver 150mi/day 02 Z71 Suburban 117,000 15 Toyota Prius 2600 miles 00 Harley Sportster 24k 09 Yamaha R6 03 Ninja 250 Last edited by rhodes2010; 08-19-2006 at 09:01 PM. 
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#2
08-19-2006, 09:44 PM
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Just a guess, but if the part numbers are the same, and looking at the year if your driver, and your donor car, I'd guess that is month and year the senders were made. Just a guess, Chuck
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2000 C230 Kompressor "Frosty" 2007 PT Cruiser 2001 VW TDI Beetle 1999 Landrover Discovery II 1971 Corvette Gone: 97 Cabrio, 83 240D, 93 VW Eurovan, 95 Volvo 850, 93 Chevy Astro Van, 77 VW Bus, 99 VW Jetta, 74 VW Bus
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#3
08-19-2006, 11:13 PM
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So I switched from the donor car sending unit marked 6.81 to the original one marked 9.79.
The temp guage is behaving as I remembered it (lower readings). So, either the sending unit I pulled out is bad (I guess I will test it) or there are subtle differences.
__________________
80 300D 340K Owned 30 yrs 83 300SD 440K Owned 9 yrs - Daily Driver 150mi/day 02 Z71 Suburban 117,000 15 Toyota Prius 2600 miles 00 Harley Sportster 24k 09 Yamaha R6 03 Ninja 250
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