Another OHC question-temp sensor - Ranger-Forums - The Ultimate Ford Ranger Resource


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Old 12-24-2006
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Another OHC question-temp sensor

Alright, I got un-lazy and mounted and wired the OHC. 1 problem. I think I have the wrong temp sensor. I did some searching and I might have the EATC sensor.

The wires coming from the sensor are: red/orange and blue/yellow.

Do i have the wrong sensor? When I hooked iy up, it read -40F. I took off the sensor and it now reads 140F.

(I didnt hook up the VSS or the dimmer wire...does this matter?)

BTW: it looks great!
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Old 12-24-2006
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It should read -40F or -40C when the sensor circuit is open (unplugged).

The 95~2001 Explorer console sensor wires are blue/white and blue/yellow. The Explorer EATC sensor wires are red/orange and pink/black. Did your sensor come out of a different vehicle??
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Old 12-24-2006
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You have the wrong sensor. Probably looks kind of like a pencil tip at the end, right?

You need the sensor that has B/Y and B/W wires coming from it (has a flat "snub nose" end).

See what Bob said.
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Old 12-24-2006
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Yeah. I've got the one with the tip on the end...

I got the whole package from a member on G-E a long time ago. So, it's the wrong sensor?
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Old 12-24-2006
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It's easy to grab the wrong sensor off an Explorer, they are both mounted pretty close to each other up front. When I pulled my OHC from a local yard I grabbed both sensors because at the time I didn't know which one was which.

You can pick up the correct sensor cheap at one or your local yards, I'd think.

Last edited by Rockledge; 12-24-2006 at 01:29 PM. Reason: spelling
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Old 12-24-2006
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Quote:
Originally Posted by Rockledge
You have the wrong sensor. Probably looks kind of like a pencil tip at the end, right?

You need the sensor that has B/Y and B/W wires coming from it (has a flat "snub nose" end).

See what Bob said.
Actually, Joe, it's not that simple. Both of these are overhead console sensors, just from different model years:

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Old 12-24-2006
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Thanks for the clarification Bob. I didn't realize the OHC temp sensor came in different shapes.

FWIW, the OHC temp sensor I pulled from a '95 Explorer looks like the one at the bottom in your pic.
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Old 12-24-2006
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Yeah, ive got the one on the top...but it's got a red/orange wire, and a blue/yellow wire.

What's the deal?
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Old 12-24-2006
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The sensor may have come out of a different vehicle, not a 95~2001 Explorer.
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Old 12-24-2006
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humm i have the one on top too mine has blue and white and blue and yellow..wonder if mine is wrong too?...

edit: actually i didnt read..lol i think i got the right one..does it matter what ohc i use for this application? what if i got the sensor out of a 2001 and the ohc is out of a 1995 or so
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Old 12-24-2006
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Nope. It'll work fine.
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Old 12-24-2006
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hey thanks!...i think i got one more question..on my harness i got 2 inches of wires..did you have to extend your wiring? if so what guage wire is it and where can i get some?
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Old 12-24-2006
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Most of the wire can be 22 ga with no problem, I used 18 ga. I'd use the heavier gauge for the map/dome lights though for sure.
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  #14  
Old 04-17-2007
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Yeah, I'm getting a new temp sensor from pastfinder, but it's still reading 140*. Did I wire it wrong?
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