evil200000000 wrote:Hi all, So I've got my Versa for about a week or so now and it feels great driving around the city. Everything seems fine and works well but theres one thing thats bothing me. Its this engine temperature light thats on for about a minute or more when I start the car. While in driving its goes away. After i parked and start car again, it comes on for 1 sec like every other light. I'm just wondering if that is because the engine is cold or overheated? According to the manual, its says that that light only comes on for 1 sec.
Sorry if thats doesnt make sense or sound like a stupid question. It's my first car and Im a new driver so i know nothing about car.
I saw that light the first time I backed the car out of the garage to go to work, and had to stop to look it up. This is the "Low engine temperature" indicator...it illuminates when the engine is below its normal operation range. The "one second" you refer to is the normal self-test all the lights are given when the car is first started. If you look at page 2-12 of your manual, it merely says the light stays illuminated until the engine warms up. This may take a minute or so...even longer when winter comes around, if you're in the cold-weather parts of the country.
The engine cooling system is designed to handle worst-case conditions (such as a full load in Death Valley in the summer) so under more-normal conditions, it's capable of *not* letting the engine warm up. The engine really prefers to operate at a certain temperature, so there is a thermostat in the cooling system that blocks off coolant flow to the radiator until the coolant (e.g., the water and antifreeze) reaches the proper operating temperature.
This thermostat will eventually fail. It can fail shut...which will cause your engine to overheat and damage itself. Or it can fail open, which won't immediately harm the engine, but will cause problems with economy, emissions, and drivability.
Traditionally, cars have a warning light that illuminates if the engine gets too hot, or a temperature gauge. The Versa is the first car I've owned with a low-temperature light.
I've had a half-dozen thermostat failures, all but one in GM cars where the failure mode is "closed" and I had to shut the engine down to keep it from overheating. The one other failure was in a Nissan pickup...which failed open. It had a temperature gauge, and I noticed the needle didn't come up to the normal level.
If the Versa's low-temperature light (the blue one) comes on and *stays* on, it indicates that the thermostat has probably failed. The light should turn off as the engine warms. So if it stays on for a minute or two, that's normal.
If it *doesn't* turn off...crank up the heater to the full-hot position and turn the fan on max. If it just blows lukewarm air, the thermostat is probably bad and needs replacement.
Can't speak to the Versa engine, but thermostat replacement in every other car I've had to do it in is pretty simple. In fact, I used to swap thermostats summer and winter in my old '46 Willys Jeep.... 165 degree in the summer, and 195 in the winter (rag-top...needed all the heat I could get!).
Ron