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  #1  
Old October 18th, 2015, 12:05 PM
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I've searched, but not found clear answers. Background: Over the summer, my truck ran a little warmer than I liked. Slightly over the straight up and down line. I had a new fan clutch, 160 degree thermostat, and new cats installed along with a coolant flush and new belts. Truck ran perfectly after in 90+ degree weather. Temp gauge was nicely below the center. This weekend, the weather has been substantially cooler and my truck seems to be running on the much cooler side. See pics below. Temps in the high 40's mid morning and 60 by afternoon. I went out on a few drives and below is where my gauge sits. Is this running too cool? Should I have stayed with a 180 thermostat? Shop recommended 160, but I'm not sure if that's keeping me just right in the summer, but too cool in fall/winter. Manuel says position in the "black" is normal.

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  #2  
Old October 18th, 2015, 12:12 PM
javelinadave
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180 degrees will make your engine happier AND your heater will actually produce some heat. 160, not so much.
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  #3  
Old October 18th, 2015, 12:17 PM
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I would start with a new VDO gauge and sender with real numbers, are you using ETC4765?
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  #4  
Old October 18th, 2015, 12:22 PM
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WeBeCinYa
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Heat was warm, not hot, but plenty warm. Yes I do need to get a VDO gauge. Is it ok to run like this until I can get shop to switch it to 180? In other words this won't hurt engine?
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  #5  
Old October 18th, 2015, 12:42 PM
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Have them fit a genuine WaxStat 88 deg c. It is only a 15 min job with two bolts to undo.
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Edward Teach is the Blackbeard, and is a member of the Birmabright Brotherhood.

Still looking for that place where I can carry a paddle and get asked what's that.

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FC101 GS FFR
57 LR 88" SXF 858
85 LR90
95 D1 Tdi
05 D3 HSE
97 XK8 BRG FHC For Sale
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  #6  
Old October 18th, 2015, 12:50 PM
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No you won't hurt your engine. Your gas milage may suffer but for the short term you are fine.
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