vehicles with trans temp readout
On Saturday I test drove a 2013 Jeep Grand Cherokee. I was pleased when the salesman showed me that the dash display could show transmission temperature as well as each tire's pressure. After seeing...
Forum Discussion
rexlion wrote:I don't know how accurate or responsive the readouts are on other vehicles as I only have experience with my 2002 Burb. With the Burb, there is a very real difference between the instrument panel gauge (analog) and the ScanGauge (digital). Based on the temperatures being reported, I'm guessing that the analog gauge is not as well calibrated as it could be, and there appears to be a lag between the digital temperature and the analog (needle) temperature. Sensor location may be different for the analog dash panel gauge than it is for the OBD II port's output, which would be an additional factor to consider.
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The Jeep GC showed 170 degrees on the digital readout, just test driving around town. But you think that the on-board readout will not be accurate? I wonder how and why the mfrs would set it up to take measurements that are not accurate?
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Question: has anyone ever compared their on-board tranny temp readout to a Scangauge or similar, to quantify how accurate or inaccurate the onboard readout was?
Bottom line, though, is that any readout at all is going to be helpful and more useful than relying only on a warning/indicator light.
