After jump starting, "no engine" shows on the dash.

First thing I would do is check all terminal connections for corrosion and loose connections.Than look at the batteries. Check them for bulges and water level, then isolate and charge fully. Anything under 12volts after full charge is scrap. Do that and see what you have. When you're working with batteries be very aware of battery acid. It is very corrosive. Always wear safety glasses and gloves,rubber are best.Also wear old clothes as acid will burn holes in everything. Service the batteries then see what you've got. 9 out of 10 times, batteries are the cause of no start. The other 1 is everything else. Hope I helped, if not repost.Good luck.

 

I agree, sounds like a bad connection or a battery or two acting funky.

 

You really should fix that block heater as soon as possible. If you are having any kind of starter battery or starting problem, without that block heater in this cold weather you're multiplying exponentially how hard it is to start that engine.

Even without starting problems, in any kind of cold weather you should always be plugged in. Always.

That should be right on the top of your list to fix.

 

I can understand saving money and waiting to do things that you can put off. And I'm not here to argue with you or give you a hard time.

But if you're talking about the block heater that you plug in when it's under say 40 degrees outside, then you really should have that fixed immediately if you're in any climate that's under 40 degrees. It's no wonder that you're having starting problems.

That block heater allows your engine to spin half a turn and start rather than cranking and cranking and cranking and cranking and shooting ether and jump starting and all that sort of nonsense. All that does is wear your batteries out and wear your starter out which it sounds like you"ve already done.

It's your truck do as you wish. But to me it really doesn't make any sense to change a block heater in the summer when we are in the dead of winter and you're going to end up replacing at least your batteries and your starter instead of the block heater. To me that's kind of a backward logic to replace all of that instead of making sure your truck will just start easily in the cold weather. It is incredibly hard on the batteries and the starter to crank an ice cold engine in cold weather. By Springtime you might be replacing your starter and your batteries again. That can't be cheaper than just having somebody put it in.

Also be careful if you're shooting that truck with ether in the cold weather. I knew a guy that did that in the dead of winter and he broke his crankshaft. I knew another guy that blew the compression out of his rings. Using ether on an engine that has a block heater is just plain stupidity.

It's a lot cheaper to just fix your block heater honestly.

I'm done here. Good luck. Be safe.

I'm out

 

It will help if you post engine model.sounds like a shorted out battery or two.how old are your batteries?then again we don’t know what type of truck so we can tell you how many grounds, relays,to check or if you get power to the Ecm pin#72 to many outs with not enough info. I got Cummins INSITE and Cat Et and I’m able to send you diargrams but need info.

 

What he says. Good batteries, block heater are a must in cold weather. I know its a pain, but it is what it is.

 

The batteries may show good voltage and still be shot. Go to the automotive parts store and pick up a battery draw tester, about $30 and check the condition of each battery.Disconnect each battery after they have been fully charged and test them individually. This will.show if you have a bad battery. If there are borderline batteries, replace them as well. It is best to have all of them in the same condition.
The tester can also be used to see what your charging is doing.
You mentioned that the block heater is low on the list of things to do. What other issues are there that may be times into your starting problem?