TheBig1
Deceased RIP
- Nov 27, 2011
- 17,851
- 44,381
- Funster No
- 19,048
- MH
- A class
- Exp
- many many years! since I was a kid
I have worked on all generations of motorhomes and agree that many modern vans are too complicated just for the sake of it. But underneath, the basic principles remain the same for electrics and plumbing. Under the engine, far too much is now reliant on the output of a sensor that is made for pennies and sold for a king's ransom, for even basic things. The engine block IS the same basic principle of a simple internal combustion engine. Air, fuel, compression and spark are all needed just the same
Mechanics that can fix parts are a dying breed, because the youngsters are taught to fit parts and the labour rate is dearer than the cost of the part. Nearly everything is diagnosed by plugging a computer in and asking the engine which part is not working. A decent old fashioned mechanic would listen to symptoms and work out the probable cause quicker than getting the computer plugged in. The reason you hear of garages plugging in a computer and changing part after part is because they have no idea how an engine really works and they are dependent upon that computer for the answer
I do feel for others who are unable to take on the challenge of fixing things on their motorhome. Especially when that is down to fear of the unknown and the manufacturer keeping obvious things like wiring diagrams secret. You see both ends of a wire and worry what is there between point A and point B, but if the wire carries a voltage that can be demonstrated to be present at both points, there is no problem. If that wire is so far buried that you cannot access it after a break is detected, run a new wire neatly and keep a record of what you did in the service history
Mechanics that can fix parts are a dying breed, because the youngsters are taught to fit parts and the labour rate is dearer than the cost of the part. Nearly everything is diagnosed by plugging a computer in and asking the engine which part is not working. A decent old fashioned mechanic would listen to symptoms and work out the probable cause quicker than getting the computer plugged in. The reason you hear of garages plugging in a computer and changing part after part is because they have no idea how an engine really works and they are dependent upon that computer for the answer
I do feel for others who are unable to take on the challenge of fixing things on their motorhome. Especially when that is down to fear of the unknown and the manufacturer keeping obvious things like wiring diagrams secret. You see both ends of a wire and worry what is there between point A and point B, but if the wire carries a voltage that can be demonstrated to be present at both points, there is no problem. If that wire is so far buried that you cannot access it after a break is detected, run a new wire neatly and keep a record of what you did in the service history