Temp Needle

tnguyen600 · Sep 28, 2009

Another radiator question. I swear my radiator is failing too b/c when I open the hood, theres dry white residue everywhere near the radiator. Anyway, I just noticed today as I was driving, my temp needle going real high as I accelerate and than when I stop it would slowl go back down to normal conditions. As I speed up again, it would go up.

Does that mean that I'm ****ed? Or just low of radiator coolant? Gracias

swollen_cu · Sep 28, 2009

^ could be many things, but check your coolant level first. If that doesn't work, try changing your thermostat, and if that doesnt do it, change the water pump.

Russianred · Sep 29, 2009

If you rule out the thermostat, and the needle falls lower than it usually sits at, on a hot engine, then you have some other problem.. I wouldn't go tearing up your engine though before you rule everything out.

If needle falls lower than it usually sits on a hot engine, you are definitely not over heating, and I believe it's a sensor error. If sensor was intact, it wouldn't read lower than the temp a hot engine is in. You can't straight up cause a lower temp for the sensor to read accurately. Does that make sense?

- Nikita