How to fill up washer bottle in a 1986 camper

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How To Install Replace Windsheild Washer Reservoir Bottle ...

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https://www.youtube.com/watch?v=kA38mzgMCkk
Jun 11, 2012 - Uploaded by 1A Auto Parts
How To Install Replace Windsheild Washer Reservoir Bottle FordEscape ... a broken, damaged, split or leaking windshield washer bottle.

How do you know this?
If you have an Automatic (dip stick), top it up.
If you have a manual I can only guess you have an oil slick under the car. If so, filling it is a temporary solution as you must find the leak.
To top up the manual transmission you need a very large allen head wrench (like 19mm or so) to undo the fill plug on the side of the transmission.
Get a pump for the oil (GL-4, I believe) and fill until it is dripping out the fill hole (with car level). Once it stops dripping out fill hole, replace plug.

The orange wire is for the marker lights on the outside of the camper.

It depends on what options your camper has, i.e. pop-up top, refrigerator, sink and general overall condition and mileage. I've seen alot around $2000.00 to $10,000 for a Westfalia with a pop-up top, and 40,000 miles.

Is it a slide in camper? and if so there should be jacks that go at the 4 corners above the truck box. you lift the camper up slightly and drive the truck out from under the camper. The jacks could have been removed and stored in the camper under a bench seet in the dinett.

If it is really a 1986 the spec is 5 degrees before top dead center at idle.
Much better (and easier) to set at 35 degrees BTDC at 3000 rpm.

The Bottle is under the Battery tray.You must remove it to access the Bottle.

disconnect the washer bottle plug connector. then run alive and earth wire direct from battery to washer motor to see if motor works that way, if does then new need a new washer switch on the steering column. if not then replace washer motor. should work after that unless pipes blocked.

the sensor for the washer bottle level is in the washer bottle simply unplug the sensor located at the washer resavor and the light will go off then replace sensor

it might be breathers i have the same