TL not reporting correct engine temp.

[V6POWER]

TL is showing water temp. of 180-200* when the VDO in-car gauge is reading 160-170. I have replaced the temp. sensor and checked the two-wire connector for any corrosion. Anyone have this probelm with TL? I emailed Ken Mosher and he said to check the connector/sensor, which I have done. I have also posted this in Scan Tool section.

 

[MaxVO2]

I've got a VDO Temp gauge installed in my car, and it reads consistently low. It's been my experience that if you use teflon tape or pipe dope on the threads of the sensor, it will read low. I install them dry, with clean threads and have no leaks as long as everything is tight.

Anyway, I checked my water temp at the radiator with my Omega digital temp gauge with a fast acting food type thermocouple I use for checking meat (ya, I washed it afterwards..), and for giggles, at a drain plug I have in the block with a pet-cock fitting. Both sites were within 5 degrees of each other (about 162 degrees or so), but my VDO temp gauge read 150 ish.

Amazingly, a cheap $12.88 mechanical temp gauge made by Sunpro that I bought for another car was accurate. I paid like $50 for the VDO..

Hope this helps

Billy

 

[83ttypecooled]

temp

Hi!
I wouldn't sweat it, take the average of the two, still within normal limits.By the way, Sunpro gauges are made by Actron, pretty good stuff. I have one of their old scanners, and I put it into use as an info source on my Regal, never lets me down!
Dale

 

[V6POWER]

Thanks for the replies. TL has always been showing the correct temp. but has started reading a lot higher the last month. Nothing has changed, so I don't know what is causing it.