Volvo 850 Made from 1993 to 1997, this Volvo line was available in both a wagon and a sedan, both with were graced with several trim levels.

Wire Location ?

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Old 03-22-2008, 01:02 PM
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Default Wire Location ?

Hey guys,
I was out replacing the intercooler hoses yesterday and noticed a blue wire with a ring terminal hanging around down by the lower intercooler hose. Seems to go up to the negatice terminal on the battery. Any ideas or pictures of where this is supposed to go?
 
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Old 03-22-2008, 04:35 PM
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Default RE: Wire Location ?

It should attach to the front of the transmission.
I wonder how the car is running that is the main ground for the car.
 
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Old 03-22-2008, 04:53 PM
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Default RE: Wire Location ?

Thats exactly what I was wondering too... but coming from the battery terminal (-) there are 2 blue wires. One thick blue wire that is hanging down in front of the driver side wheel, and a thinner wire that is connected to something behind the driver side headlight.
Does anyone have any diagrams for the battery wire locations? I tried searching but no luck. I don't have a manual yet.

Also, I just switched out the intercooler hoses for new ones from FCP. Didn't fit the best, but what can you expect from aftermarket? Any way, the first drive around the block went fine, but at the end the boost gauge stayed at the clear and white dividing line and there was a hissing noise coming from the drivers side of the engine. I checked everything and went back for another spin and everything stayed normal and no hissing. I attached a pic, is this what the gauge should read at idle?


 
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Old 03-22-2008, 05:12 PM
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Default RE: Wire Location ?

Sorry no picks but look on the front of the tranny where it meets the engine. Like right in front of the radaitor. There is a flat spot with threads in the hole. That is where it goes.

The gauge looks about right.
I would double check all hose clamps. Sounds like you had a boost leak maybe something wasn't seated all the way.
 
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Old 03-22-2008, 05:17 PM
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Default RE: Wire Location ?

Thanks I will check that area out.

I checked the hoses and they are all tight, only one that is kinda not on right is the one that goes to the throttle control valve. Couldn't get that sucker on all the way, but its all the way on about 75% around the hole, then that last 25% it is only on about 2/3 of the way, but the hose clamp is tight.
 
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Old 03-22-2008, 05:24 PM
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Default RE: Wire Location ?

Is it easier to see this location from the ground or the top of engine bay?
 
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Old 03-22-2008, 05:24 PM
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Default RE: Wire Location ?

Check it out and let me know.
 
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Old 03-22-2008, 06:02 PM
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Default RE: Wire Location ?

Any approximate areas on these you can mark? I see 3 tranny to engine bolts, but no flat spot, unless its behind the hose, or is it more to the front of the tranny?


 
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Old 03-22-2008, 06:13 PM
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Default RE: Wire Location ?

I can't see the pictures any bigger.
But it would be lower might be easier to see from the bottom of the car.
 
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Old 03-22-2008, 06:22 PM
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Default RE: Wire Location ?

I can't see anything from the bottom of the car. Dont have ramps... I think the other wire is acting as the ground since this isnt connected.
 
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Old 03-22-2008, 06:24 PM
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Default RE: Wire Location ?

I will try to get a pic off of my car tomorrow and post it.
It will be under where the dipstick is mounted on the top.
About half way down the transmission. About 1/4 inch from the seam.
 
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Old 03-22-2008, 07:36 PM
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Default RE: Wire Location ?

Sounds good, I am done for today.
 
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Old 03-30-2008, 07:20 PM
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Default RE: Wire Location ?

Pic?
 
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