Driving with the temperature warning light on can boost the chance pricey engine harm! Once the temperature light comes on, it implies your engine is overheating (running also hot). An engine shouldn’t overheat when the cooling system is correctly filled and is working typically — even all through hot weather or stop-and-go driving. Occasionally abnormal driving ailments such

as towing a hefty trailer during hot climate may overload the cooling system’s capability to control heat, but usually a temperature warning light signifies trouble.

WHAT To accomplish:

Halt driving instantly, pull above to the side in the road, shut the engine off and wait for items to chill down.

WARNING: Tend not to try to open the radiator! The radiator contains hot water below substantial stress. Opening the cap could enable steam and water to blow out and melt away you. There is nothing at all to become achieved by opening the cap while the engine continues to be hot, so let your motor vehicle sit and great off.

After issues have cooled down (wait at the least half an hour or more), then you definitely can open the radiator cap and check the coolant level in case you assume it might be reduced. Place a rag more than the cap to begin with, and little by little turn the cap right up until it stops in the very first detent. This should really allow residual pressure to be released. Wait till all stress has been released just before eliminating the cap the remainder of the way in which.

Add water to your radiator if it is reduced. In fact, you need to add a 50/50 mixture of antifreeze and water to keep up the right freezing, boilover and corrosion protection. But in most situations when this transpires, it really is an emergency situation and also you don’t possess a jug of antifreeze handy. If that is the situation, you’ll should add antifreeze later on.

You could possess a coolant leak. Visually inspect the system for leaks. Prevalent leak points consist of radiator and heater hoses, the water pump as well as the radiator. Inner leaks (such being a crack from the head or engine) cannot be witnessed and can only be diagnosed by stress testing the cooling system.

In the event you Never Stop DRIVING…

If you maintain driving an engine that’s overheating, it can result in critical damage. The engine may perhaps start to knock (due to detonation), which in turn can cause piston, ring and head gasket damage. As being the inner parts from the engine expand from the extreme heat, clearances could possibly be diminished towards the stage exactly where metal-to-metal make contact with takes place. Valve stems may perhaps gall and stick, along with the pistons and camshaft could scuff or seize.

Severe overheating also creates tremendous thermal strain while in the head(s) and block. This, consequently, may possibly result in cracking and/or warpage. This is a common dilemma with overhead cam engines that have aluminum heads.

The only car that may be “safely” driven if the temperature warning light is on the late model Cadillac with a Northstar V8 engine. Cadillac engineers intended the engine management system to immediately deactivate half with the engine’s cylinders if it senses an overheating problem. This lowers the heat (and power) becoming generated with the engine, and it enables the “dead” cylinders to pump air through the engine for inner cooling. The system is intended to give a “limp-in” mode so the automobile may be driven for the nearest service facility or Cadillac dealer for repairs. It is not designed for continuous driving.