how does the block warmer work I plug into AC on a 1995 dodge 2500 truck diesel is it ok to keep on all night?

Question

I hear like a fan blowing or something underneath the truck is the motor going to be warmed up enough to make the heater get warm sooner inside the truck? I bought it used and I have not bought a manual yet I love this truck and I don't want to wake up to a pile of ashes thanks iI just worry about like leaving plugged into th house currenT I left a note on the front foor so I don't embarrassingly dragging extension\'] orange cordse e corclo the i00000

Answer 1

I have always used mine if the temp if close to freezing or below. You can go well under that with most modern diesels without using the heater, but as some have mentioned already it keeps the engine block and oil warm and prevents a "cold start" on the engine. Since diesels have extreme pressure on them when running cold starts are very hard on them. Not to mention stalling, etc. Only uses around 4-500 watts on most block heaters so is negligible against replacing a 5000 buck engine. Usually the coolant won't be warm enough to run the heater immediately on starting as that is not what they are for, but will only take a few minutes to warm to that temp once cranked. That is why you can leave them on as long as you want. Diesels run "solely" off heat generated by the compression and if the engine is too cold you get hard starting and that is not good for the starter, batteries, or the engine itself. Many folks let their's get very cold without using the engine heaters with no major problems, but as long as I am near a plug I will use mine at freezing or below. Not to mention that I am riding around in a warm truck almost as soon as I pull out in the road. :-) Besides there are thermal overloads on the heaters so that if a problem develops it will cut itself off from overheating.

Answer 2

Block heaters are to keep the block and oil warm when not in use (running) 15w 40 oil most likely... Keep your anti-Freeze to match where you travel and live. Most installed in the freeze plug in Dodges and Fords.

If your hearing a fan running you migh have a switch in the coolant system that has been bypassed or low temp setting... You have a coolant fan that works off temp of the Water/Antifreeze... When you plug in your truck and the Antifreeze/coolant warms up the switch clicks on whe the temp get high enough to switch the fan on and should go off when the temp comes down.... Just keep an eye on your battery if its over 3 years old and gets below 28* outside... Should be fine

You can plug it in anytime or temp. Just don't pass changing your oil at least 5000 miles sooner is better...

Answer 3

That one likely has the sturdy previous 12 valve Cummins. If this is that mixture and also you rather like it i ought to assert move for it rather if that's a guide. Chrysler's automatics of that era weren't so warm, and those previous 5.9Ls will run invariably in the experience that they have got been treated. The 12V do not have a similar output as a 24V although that. If something else of the of the truck is immediately and under no circumstances all rusted out i ought to assert this is going to likely be a sturdy purchase.

Answer 4

It keeps your oil and coolant warm. It prevents your heads from expanding then contracting, reducing the stress on start up. Its fine to leave it on all night, thats why its there.

Answer 5

Why do you need to use it? My diesels have always started fine in minus temperatures and I don't have a garage so they're kept outside...

Answer 6

IF THE TEMP IS BELOW 0 YOU SHOULD PLUG IT IN FOR 1 -2 HOURS BEFORE STARTING VEHICLE..ANY LONGER IS A WASTE OF POWER...

Answer 7

it'll be fine.