Need a manual for 1972 apollo motorhome - Cars & Trucks

It may be that the Vandura is the chassis it uses. Motorhomes go onto a stock chassis. You could try motorhome RV forums

https://www.google.com/search?q=1984+gmc+motorhome+G3500+fuse+box+diagram

It says Vandura 1 Ton Motorhome

https://www.google.com/search?q=1984+GMC+motorhome+G3500

..

Hi there's this website something like reliable-store and it is very amazing for manual for repairing servicing anything
someone on fixya recommended it to me and I thank him even today
They have full manuals and it's verrrrry cheap and mine
I got free in offers
3rd time I bought it, I also had an issue with the file so the girl replaced it in 30 mins
there is one website more but i don't remember its name it was 2 years back bitman something link this
Try these out brother

1997 Komfort Travel Trailer/5th Wheel Prices and Specs
Select a Year and Model

Since 1966, Komfort has assembled quality built recreational vehicles. The Komfort name would be attached to numerous products including travel trailers, fifth wheel trailers, Class A motorhomes and park models. Shortly after leaving the business of motorhome production, Komfort joined Thor Industries in 1993 specializing in recreational trailers.
Komfort Note
TRAVEL TRAILERS/5TH WHEELS - No further information after 2012.
2004 and newer prices include A/C, microwave, awning, DSI water heater stab jacks, AM/FM/CD/DVD and spare tire with carrier.
Show Specs Hide Specs
(Model years 2013 - 1972)
5th Wheel
Length
Width
Coach
Design
Axle(s)
Weight
(lbs)
Self
Cont.
Slides
M-22-LF
22'7'Fifth Wheel23442Yes
M-23-F
24'8'Fifth Wheel24680Yes
M-24-FS
25'8'Fifth Wheel26370Yes1
M-26-F
26'8'Fifth Wheel25480Yes
M-25-FS
27'8'Fifth Wheel27120Yes1
M-26-FS
27'8'Fifth Wheel27120Yes1
M-30-FS
31'8'Fifth Wheel28660Yes1
M-32-FS
33'8'Fifth Wheel29596Yes2
M-35-FS
36'8'Fifth Wheel211021Yes3
Travel Trailers
Length
Width
Coach
Design
Axle(s)
Weight
(lbs)
Self
Cont.
Slides
M-17-L
19'7'Travel Trailers22880Yes
M-18-L
19'7'Travel Trailers22950Yes
M-20-LB
20'7'Travel Trailers22935Yes
M-19-T
20'8'Travel Trailers23540Yes
M-22-T
24'8'Travel Trailers24171Yes
M-23-TB
25'8'Travel Trailers24360Yes
M-24-TQ
26'8'Travel Trailers24640Yes
M-25-T
26'8'Travel Trailers24540Yes
M-24-TS
27'8'Travel Trailers25170Yes1
M-25-TB
27'8'Travel Trailers24290Yes
M-25-TBS
27'8'Travel Trailers25731Yes1
M-25-TS
27'8'Travel Trailers25560Yes1
M-26-T
29'8'Travel Trailers25060Yes
M-28-TS
29'8'Travel Trailers27295Yes1
M-29-T
30'8'Travel Trailers25750Yes
M-30-TS
31'8'Travel Trailers27286Yes1
M-32-TS
31'8'Travel Trailers28060Yes1

Type your question in Google click images and you should find it somewhere on there. Just write year and vehicle model then type wiring diagrams. If fails write again what I said but instead of wiring diagrams type schematics, good luck

contact the manufacturer direct or a service agent
as most motor homes are built on a standard chassis , you may need a workshop manual for the vehicle part and a manual for the home part

On the side of the trans under the car

Thats going to be next to impossible to find.
Normally I would recommend you go back to the company that built the coach, but they won't have anything that old even if they are still in business. The wiring for the chassis is available from Dodge.

Could be a clogged fuel filter if the filter is between the pump and carb.

Need a manual book on the 1987 motorhome american cobro motorhome