1985 Mustang LX..What Does This Connector Do? - Ford Mustang Forum
 
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post #1 of 12 (permalink) Old 08-31-2007 Thread Starter
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1985 Mustang LX..What Does This Connector Do?

Hi folks! Gotta quick question. What is this and what does it do? It's connected to the intake manifold, has two wires coming out the top of it (both of which need repair), and sits in front of the ignition coil. That hose veering off to the left goes to the firewall/heater core. Any ideas??

Thanks!


al
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post #2 of 12 (permalink) Old 08-31-2007
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It looks like a water temp sensor.
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post #3 of 12 (permalink) Old 08-31-2007 Thread Starter
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Would it be the sensor that sends temp info to the guage in the dash do you think? Are there others or would this be the only one?
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post #4 of 12 (permalink) Old 08-31-2007
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the sensor that sends the temp to the gauges is on the driver side in the front of the lower intake manifold, there is a single wire pushed onto the sensor.

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post #5 of 12 (permalink) Old 08-31-2007
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Looks like the Engine Coolant Temperature (ECT) sensor....'85 LX?....CFI or an EFI transplant?

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post #6 of 12 (permalink) Old 08-31-2007
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Coolant temperature sensor, not the temp sending unit for the gauge.

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post #7 of 12 (permalink) Old 09-01-2007 Thread Starter
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Joel, I see where you're going with that question. No, it's carbed. You're thinking that this sensor is reporting info back to a computer (no computer on pre-86's, correct??). So to what is it reporting the temp info to??
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post #8 of 12 (permalink) Old 09-01-2007
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There's a computer, it just doesn't operate or control the engine.

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post #9 of 12 (permalink) Old 09-01-2007
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That's weird, my '84 (4V HO) didn't have that. It's possible that someone swapped that heater hose bung on there, but why would they route the wires?
Unless its for an electric fan someone put on there...

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post #10 of 12 (permalink) Old 09-02-2007 Thread Starter
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Hard to say Meangreen. No electric fan. Are connectors like this easy to find/replace? The wires are essentially ripped from it and will have to be repaired somehow.
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First, there were "computers" before '86....'84 and '85 5.0L Mustangs/Capris that were ordered with an automatic transmission (AOD) got EFI (CFI, Ford's version of TBI). It is not the same thing as '86-'95 SEFI.

Second, even the '85 carbureted 5.0L model got a computer. It was supposed to be for a "two speed accessory drive" (TSAD) system that pre-production models got but it never made it into actual production use.

So the question is...was your '85 originally CFI/AOD w/ EEC-IV or was it originally carb/T-5 and got the TSAD computer? If you aren't the original owner, how do you know what is and isn't original? A quick look at the Vehicle Certification Label ("door sticker") and Body/Buck Tag will confirm what the car was originally. The VIN will not tell you as both carbureted and fuel-injected models had the same engine code (M).

People have removed those TSAD computers when they purge their cars of all emissions controls and then had trouble with their AC working.

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perhaps a warning lite?


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