HI anyone name is Bob, I live in Lake Havasu (hot) . have a 85 300TD wagon. been trying to figure out where the blue wire from pressure switch on rec./dry. goes to. someone cut the wire left it hanging can't find the other half I hope someone can help me were it connect to or has a wire diagram on this model. thank you

Yes it can get warm there can`t it.

I have a 85 300D. just took a look at mine, there are two switches. one on top and the lower switch on the side of the rec/drier.

Top switch activates the AC fan. mine has 2 black wires coming off the switch. the wire harness has a blue and a brown wire, and is tied back into the main harness behind the drier. In other words it loops behind the drier and runs up the fender towards the Battery.

The lower switch on the side of the drier has 2 flat spades, which 2 blue wires from the harness plug together into the left spade.
these run up the fender and tie into the main harness behind the coolant tank.
there is another seperate wire that is also blue, that connects to the right spade. this wire also connects back into the main harness that runs behind the drier.

I had to do a correction here, I didn`t realize there were the 3 blue wires involved here.

Hope this helps.

Charlie

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there were three HP ratings on the OM616...

1) Not much power
2) Even less power
3) Not nearly enough power!! 240D w/auto

Anyone that thinks a 240D is slow drives too fast.

80 240D Naturally Exasperated, 4-Spd 388k DD 150mph spedo 3:58 Diff

We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works

Hey Charlie, thanks for your help .found the wire i was looking for . Know i can go to the next step, flush systems out & replace rec/dry etc. do you or anyone have any tips in flushing the a/c out or direct me to thread ,web that can help me much thanks Bob

diesel giant has a pictorial of AC system flushing on his website.( try googling it) you basically undo the expansion valve ( above passengers feet), the R/D and the compressor. flush,( both the evap and out thru the 2 lines to the engine bay.
Then blow clean dry air thru, and replace all orings, seals, valve, R/D, compressor, belts, freon, etc.....

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1984 123.193 372,xxx miles, room for Seven.

1999 Dodge Durango Cummins 4BTAA 47RE 5k lb 4x4 getting 25+mpgs, room for Seven.

hey thanks you very must mobetta for the tips & web. found diesel giant big help the only thing ac compressor using my old one, am I supose to flush it out & how going to work on the ac thank you Bob

Do not flush the compressor except with the oil that you are going to be using in the system.

Thank you Matt, for the tip. hope I can finsh this flush on the A/C today