Your 99 diesel will only start running when the block heater is plugged in because your glow plugs need replaced. The fuel is not reaching a high enough temperature to initiate compression.
Are you in Alaska? What heater can you plug in that is not already connnected. A diesel preheater maybe.
When you first plug in the heater have the hood open and in a few seconds you should be able to hear the heater kicking in. It will make a sizzling noise.
No. You unplug the block heater BEFORE you start the truck.
it doesnt matter how long u leave the block heater plugged in. i plug in when i am done driving for the day. the longer the heater is plugged in the warmer the engine is when u start it Block heaters are a huge draw on electricity. If you are plugging it in regularily, you can save yourself a ton of money by adding a timer. 2 or 3 hours is more than emough to start any light duty diesel in any weather. If it is having trouble starting after 3 hrs, the engine has issues.
how to build a diesel heater
The engine won't start or will be hard to start in cold weather unless you have the motor heater plugged in.
Diesel and Kerosene are extremely similar.In fact Kerosene is often called #1 Fuel Oil and Diesel is called #2 Fuel Oil.Diesel should burn fine in a kerosene heater, unless you are trying to light it in very cold weather.
Jump start car and do not run heater with engine not running.
Are you sure its a warning light, and not just and indicator that the pre-heater is on. Diesel engines don't have spark plugs, so in cold weather they should be preheated to acheive combustion. The light will usually GO OUT when the heater is finished heating the engine, and it is ready to start.
no, u should not hear anything when block heater is plugged in
Usually, with a plugged heater core there will be a bit of heat but not very much..I've only seen a few so plugged that there was no heat. One way to tell is to (carefully) touch the heater hoses just where they go into the heater core. Both hoses should be about the same temperature. If not and the heater control valve is open - then the heater core being plugged is a very good possibility.
If you are not getting heat out of the heater, there are only a few things that could be wrong. The first is low coolant. You can't get heat without coolant running through the heater. If it is low, sometimes it has to be bled of air bubbles. If both heater hose running to the heater are hot, you have circulation. If not the heater could be plugged or not getting the coolant to circulate. There is also a damper in the heater system to stop cold air from bypassing the heater and that needs to be checked.