Maineah

Even DC you still are using electricity to make it cool. Propane has a lot more energy than a battery.

I will tell you this Toyota does not consider it hot unless it's into the red zone. So you really need to check the coolant temp with an accurate gauge 180-190 is normal.

What is hot? Gauge up in the red?

AC breaker will be 20 Amp on a #12 wire it would seem likely to be factory wired AC or not because they never know what one will need to have AC.

Do the chain and guides mind you the guides are coated they are not steel on steel or they wouldn't last a month they are good to 150K so by the time you need to do it again you would need a major over haul any way no sense changing to a double roller there are a lot of other parts you would need other than just the chain to convert it. The oil pump is part of the chain cover it is the first thing that sees oil I have never seen a bad one.

Dude you got a miss fire!

Well with all of them out it's a supply issue. I'm going to guess that they have their own fused circuit. The logic would be the truck lights were all ready wired before they put a house in it's back.

Good as any better than some!

Testing my memory, I believe there is a fuse for the alt. exciter. Does the big alt. terminal show matching battery voltage?

That is a very popular transmission variant used in every rear wheel drive Toyota. If they can't find it it's only because they are not looking. Lookup ATRA transmission in your neighbor hood they are independent shops and have nation wide members to stand behind their rebuilds. Switching to a manual would be quite a task. They had some issues with governor bores but that was reparable.

I believe they are both the same. Those are pretty tough transmissions rebuilder near by?

The isolator is just that, it's purpose it to isolate the coach battery from truck battery the ideal is to not end with a dead truck battery, the next morning. So with the key off the batteries are separated once the truck is started the isolator turns on and charges both batteries. The small wire gets a signal from the truck turning the isolator on as soon as it is running. If you asked for an isolator relay that is most likely what you got not some they sell every day. Several heaver wires is not unusual on the truck side, the isolator it is a convenient spot to hook them up.

Pictures would help.

Some are 4 terminal you will need a ground wire if so, but the relay frame will do as a ground provided it is.

If the GFI is tripping the GFI is a AC issue. Nothing battery powered light's, fans etc. If you have things plugged in unplug them all of them, plug the camper back in and what happens. If the GFI doesn't trip plug them in one at a time. The AC is line powered and fridge possibly is too make sure they are off. It is possible your converter can cause tripping but only on the AC side. Older GFI were finicky and had a lot off tripping issues if all else fails replace it they are cheap. Coach wiring color is not industry standard you might find any thing. Usually white is ground black is + it's more common but you can't count on it. My Nova Star + was blue and ground was green.

200 pound block of ice and a DC fan. A 2200 watt Honda would run a small RV AC but not much more.

I doubt the unit would even run! The AC wiring is a #12 wire good for 20 amp AC or DC fine for 120 volt unit! Running a #6 times 2 inside a MH is going to be a real treat. Any thing 120 volts to 12 volts the current factor is times 10, so 5 amps becomes be comes 50 at the lower voltage.

The 48 volt supply is a dead giveaway that thing is going to draw a lot of current! At 12 volts the cable would be 4 times the size! You could use 4 batteries to make 48 volts but you are still looking at around 85amps. Golf carts typically use 48 volt chargers that could help deal with the charging system with 4 series wired batteries. How do you intend to deal with this on the road?

Like your big pup. Looks like a Dane to me yes? We just ended up with a 110lb female not long ago, Great Dane #5! One used to sleep with me in the cab over bed when we went camping! You will enjoy the MH all of them are getting long in the tooth but it sounds like you get a pretty nice one. The inner wood frame of the door rots, very common on all MH, I have rebuilt several and use pressure treated ripped to size as long as the metal is good it really is an easy rebuild.

I'm going to guess thermo couple.

Huge difference in fuel pressure by a factor of 10 between EFI and carburetor be sure of what you have before replacing fuel lines.

Had an 87 Nova Star very well built and designed MH. See If you can find a 6 bolt front wheel setup that would finish it.

They are pretty tough engines and transmissions. The 22RE had single roller timing chains so a chain and guides around 125K. The transmissions are pretty tough also their issues were tail shaft bushings if it's leaking fluid at the rear seal it needs to be fixed as soon as possible.

Here is what you can try, tacomaworld.com. There are hundreds of posters from all over the country and the world for that matter. Some one knows who you can try for engine work.

Yes there will be resistance at the fuses to ground. What you need to do is check the voltage at the fuses, the power not plugged in the voltage comes directly from the coach battery. Check the voltage at that battery the fuses should match the battery or pretty close to it. Boon docking running off the coach battery can turn into a big load rather easily light bulbs make better heaters than lamps. Blower motors for the coach heater suck up a lot of power. The fridge on DC is a power hog.