First of all, the "block heater" is actually an oil or coolant warmer. It will heat the engine oil or engine coolant depending on location installed, and works similarly to an electric water heater. The rate and maximum temperature that the heating element reaches depends on manufacturer. Circulation of the fluid it heats also plays into how long it will take to warm the engine. In general, the larger the motor, the longer it will take to warm and the more power it will require to stay warm. A 7.3L engine will have a higher volume of coolant to heat where as a 5.9L engine.
If the engine is out it's easy. Unfortunately they put so many pieces below the block heater of that model it's almost impossible to change with engine in car.
same way as any other block heater... ========================================================== Your Ford Ranger block heater is just like the heating element in an electric kettle . As long as the electric block heater is plugged in to an electric outlet that has power to it , the block heater keeps on heating the engine coolant if everything is working correctly
There isn't a fuse for the engine block heater , it is like the heating element in an electric kettle , as long as it is plugged in and you are not using a timer or some other device that controls the electricity , then the block heater is on ( assuming that there isn't a break in the block heater cord , which has happened to me a couple of times , where I've had to put a new " male " end on the block heater cord ) or something wrong with the heating element
your heater will be cold, or your engine can over heat. your car can take a long time to heat up. Your inside heater will be cool, or your engine temp. will over heat.
You can not get heat from cold water, The engine has to run long enough to get the water in the engine HOT. That is were you get heat from HOT WATER-- Coolent
This Would Not Allow Heat Inside The Car. And Would Not Damage The Engine. If You Bypass The Heater Core You Have No Heat. The Heat Comes From Yhe Water Flowing Through It From The Engine. Its Winter Try To Have The Heater Core Repaired Or Replaced. the heater core is the only thing that provides heat to the inside of your car so bypassing it would leave you cold but it will not hurt the engine as long as you couple the two hoses together
It depends on the ambient temperature, but at least a couple hours.
I put one in an older model 4 cyl - there is a blank plug in the driver's side of the engine block - it's really thin and just pressed in place. You tap it out with a long srift of some sort (try not to drive it into the engine block). Then, the block-heater element is inserted and a bolt on the outside is tightened up which locks it in place. If you buy the block heater new, it should come with a little generic flier on how to install it. Oh, and the plug was towards the back of the engine, but it may be in a different location on a 95. I put one in an older model 4 cyl - there is a blank plug in the driver's side of the engine block - it's really thin and just pressed in place. You tap it out with a long srift of some sort (try not to drive it into the engine block). Then, the block-heater element is inserted and a bolt on the outside is tightened up which locks it in place. If you buy the block heater new, it should come with a little generic flier on how to install it. Oh, and the plug was towards the back of the engine, but it may be in a different location on a 95.
Most likely a defective thermostat.However,remember that there is a lot of metal in the engine block that has to heat up too.
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.
A very basic answer is: The hot water the engine produces is circulated thru the heater core. The heater core looks like the autos radiator only smaller. The heater core is located inside the heater box. So as the engines hot water circulates thru the heater core the heat will transfer into the heater box. As long as the engine is running and everything is working properly the heater core will stay hot inside the heater box.
Locate the block heater. Drain out the coolant from the rad and from the block if there is a drain there. There should be a screw in the center of the block heater. Unscrew it to loosen the block heater internal clamp. Use a pair of pliers and wiggle it free. As long as it is not plugged in, there should be no worry of damage. It is sealed with an o-ring.The element will have to be worked out as it goes into the block along the side.