I actually checked my temp gauge against the readout from an ECM scanner, and found that the first mark (labeled "100") is actually about 160°F. The next hash mark (i.e. the 1/4 mark) is about 180°F. And the 220 mark is closer to 210°F.
That said, my engine usually runs around 180°F while the car is moving at any speed above 25-30 MPH, and can get up to around 200-210°F in stop-n-go traffic. That's with a manual transmission, a 3.4 V6, 180°F thermostat, new water pump, and new radiator.
Oh, and I also have a hood vent... forgot to mention that.
[This message has been edited by Blacktree (edited 05-04-2010).]
Whats the best way to get a reading of the water temp to see if the guage is accurate?
When I first got the car it would go to about the 1/4 hash mark. I thought that seemed awfully cool. Then it died. I replaced the sensor on the engine and now it goes all the way up to the 3/4 mark... I'm so confused. lol
Can I just run the car with the radiator cap off and stick a themometer in the water to see if it matches up with the guage?
And keep the answers coming, I think we all like hearing about how many messed up guages we have lol
May 5th, 2010
Posts: 805 From: Ashland, Ohio Registered: Feb 2008
I have a canadian gauge obviously... so it starts at 40 deg C...then ends up around the 75-80 C mark (165F-175F) after mixed driving
The car came with a 160 t-tat and low temp fan switch but i put a stock one back in after i read posts on here about poor gas mileage.. i dont think it made a difference though. It might run a bit cooler if i replaced the coolant...but who wants that headache?!
[This message has been edited by Dougie Murder (edited 05-05-2010).]
I bought a new temp sensor from the FS a few weeks ago that was giving incorrect readings. When the car was 180 the gauge was just sittting in the red. FS replace it with another new sensor installed it and now I get the correct readings sitting about 170-180.
I saw at Pepboys a thermostat cap that had a thermometer gauge reading in it... It was a 16 pound... My question is if that pound rating is good for our cars... I've heard 15 - 17.. This would fit the radiator side