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OH MY, part 2 of my first problem [Solved!]

Started by Flexthis2011EB, December 27, 2016, 04:06:21 PM

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Flexthis2011EB

December 27, 2016, 04:06:21 PM Last Edit: December 31, 2016, 08:56:50 PM by Flexthis2011EB
Oh my, ok. So while digging around looking at the rear soaking turbo I noticed a new problem. No matter what, cold, hot, sitting over night, the second I start my car my fans kick on. And on top of that, my car wont heat up. Obviously I thought the fans on were keeping it from warming up my car so I unplugged them and my cars temp still wont budge. It's stuck on cold. I monitored the ect through scanner and it read no higher than 138 degrees and when I drive it drops to like 105 degrees. Like ????? I changed the t stat twice both with oreilly brands. Is oreilly brands the problem? I pulled the ect/cht sensor and measured resistance as I dipped it in boiling water. Resistance did drop, rather fast so maybe its faulty or out of spec? And I'm also wondering if the non warming up and fans running constantly are 2 separate probs or one in the same. I checked the fuses (no relays for fans) and all is good. I'm really lost. Is the fan control module faulty? Can that be tested? Someone please help!!!!!!!! I have a new ect temp sensor coming tomorrow to see if that helps.
2011 Ford Flex AWD Ecoboost 3.5l twinturbo

SHOdded

#1
December 27, 2016, 04:38:28 PM
Any codes set in the PCM?  That really would make it simpler!  At the end, it may be a faulty PCM if nothing else resolves.
2007 Ford Edge SEL, Powerstop F/R Brake Kit, TXT LED 6000K Lo & Hi Beams, W16W LED Reverse Bulbs, 3BSpec 2.5w Map Lights, 5W Cree rear dome lights, 5W Cree cargo light, DTBL LED Taillights

If tuned:  Take note of the strategy code as you return to stock (including 3 bar MAP to 2 bar MAP) -> take car in & get it serviced -> check strategy code when you get car back -> have tuner update your tune if the strategy code has changed -> reload tune -> ENJOY!

Flexthis2011EB

#2
December 27, 2016, 04:53:45 PM Last Edit: December 27, 2016, 04:56:34 PM by Flexthis2011EB
Quote from: SHOdded on December 27, 2016, 04:38:28 PM
Any codes set in the PCM?  That really would make it simpler!  At the end, it may be a faulty PCM if nothing else resolves.

P0135
P0053
Both are 02 sensor codes. And I highly highly doubt its a faulty pcm as I just had a brand new one put in less than 3 months ago for an unrelated issue. Now I'm reading about an ac pressure switch being inline with the cooling circuit. This true? Anyone know where it's located because I'm not seeing one.and thank you very much for that document! I will go out and do some testing.
2011 Ford Flex AWD Ecoboost 3.5l twinturbo

SHOdded

#3
December 27, 2016, 05:00:25 PM Last Edit: December 27, 2016, 05:09:43 PM by SHOdded
Hmm are those sensors/wiring free/clear of oil?  Could be contamination setting the codes for the O2s.  Do you have your climate control coming on automatically every time you start the engine?

I think this is the switch you are thinking of
16   BT4Z-19D594-A   Pressure Switch
FLEX
$53.44   $30.73

https://secure.revolutionparts.com/levittown-ford/auto-parts/2011/ford/flex/titanium-trim/3-5l-v6-gas-engine/hvac-cat/switches-and-sensors-scat
2007 Ford Edge SEL, Powerstop F/R Brake Kit, TXT LED 6000K Lo & Hi Beams, W16W LED Reverse Bulbs, 3BSpec 2.5w Map Lights, 5W Cree rear dome lights, 5W Cree cargo light, DTBL LED Taillights

If tuned:  Take note of the strategy code as you return to stock (including 3 bar MAP to 2 bar MAP) -> take car in & get it serviced -> check strategy code when you get car back -> have tuner update your tune if the strategy code has changed -> reload tune -> ENJOY!

Flexthis2011EB

#4
December 27, 2016, 05:09:01 PM
Actually no. It was caked in crap. I treid cleaning the best I could. I even pulled it out and looked at it, looks pretty burnt up. I'll get a new one, it's just there like $150 a piece. And no. I don't have climate control come on. I'm really hoping it's just a ect sensor or something. 😪. Car wont warm and fans stuck on?? Like wtf. Hopefully these test of fan circuit will tell me something.
2011 Ford Flex AWD Ecoboost 3.5l twinturbo

SHOdded

#5
December 27, 2016, 05:11:45 PM
Yeah, its very odd with the fans on all the time.  Since the oil leak is at the rear turbo, the wiring is probably not affected by that.  May have to look at previous incident/repair history for clues.
2007 Ford Edge SEL, Powerstop F/R Brake Kit, TXT LED 6000K Lo & Hi Beams, W16W LED Reverse Bulbs, 3BSpec 2.5w Map Lights, 5W Cree rear dome lights, 5W Cree cargo light, DTBL LED Taillights

If tuned:  Take note of the strategy code as you return to stock (including 3 bar MAP to 2 bar MAP) -> take car in & get it serviced -> check strategy code when you get car back -> have tuner update your tune if the strategy code has changed -> reload tune -> ENJOY!

Flexthis2011EB

#6
December 27, 2016, 05:29:35 PM Last Edit: December 27, 2016, 05:44:43 PM by Flexthis2011EB
I don't think I have that pressure sensor. I see it in your diagram but don't see it in the bay. Could it be behind the front bumper? Closer to the condenser?
2011 Ford Flex AWD Ecoboost 3.5l twinturbo

SHOdded

#7
December 27, 2016, 06:26:41 PM Last Edit: December 27, 2016, 06:32:07 PM by SHOdded
A/C Pressure Transducer

The A/C pressure transducer monitors the compressor discharge pressure and sends a variable voltage signal representing the pressure to the PCM. The PCM will interrupt A/C compressor operation in the event that the A/C pressure transducer indicates high system discharge pressures. It is also used to sense low charge conditions. If the pressure is below a predetermined value for a given ambient temperature, the PCM will not allow the clutch to engage.

The A/C pressure transducer is located on the compressor-to-condenser discharge line near the condenser inlet fitting. It is not necessary to recover the refrigerant before removing the A/C pressure transducer.


2007 Ford Edge SEL, Powerstop F/R Brake Kit, TXT LED 6000K Lo & Hi Beams, W16W LED Reverse Bulbs, 3BSpec 2.5w Map Lights, 5W Cree rear dome lights, 5W Cree cargo light, DTBL LED Taillights

If tuned:  Take note of the strategy code as you return to stock (including 3 bar MAP to 2 bar MAP) -> take car in & get it serviced -> check strategy code when you get car back -> have tuner update your tune if the strategy code has changed -> reload tune -> ENJOY!

Flexthis2011EB

#8
December 27, 2016, 06:34:14 PM
After reading that, Am I right by saying that the a/c pressure switch has nothing to do with my coolant fans staying on and my car not showing it's warm on the gauge?
2011 Ford Flex AWD Ecoboost 3.5l twinturbo

SHOdded

#9
December 27, 2016, 07:10:57 PM
Well it could, indirectly, because if it allows the compressor to run, then the fans will run, as expected.  Are the fans running full speed or 30% or ...
2007 Ford Edge SEL, Powerstop F/R Brake Kit, TXT LED 6000K Lo & Hi Beams, W16W LED Reverse Bulbs, 3BSpec 2.5w Map Lights, 5W Cree rear dome lights, 5W Cree cargo light, DTBL LED Taillights

If tuned:  Take note of the strategy code as you return to stock (including 3 bar MAP to 2 bar MAP) -> take car in & get it serviced -> check strategy code when you get car back -> have tuner update your tune if the strategy code has changed -> reload tune -> ENJOY!

Flexthis2011EB

#10
December 27, 2016, 07:16:40 PM Last Edit: December 27, 2016, 07:18:59 PM by Flexthis2011EB
Quote from: SHOdded on December 27, 2016, 07:10:57 PM
Well it could, indirectly, because if it allows the compressor to run, then the fans will run, as expected.  Are the fans running full speed or 30% or ...
Not full speed that's for sure. I'd say around 30%. So maybe I should change it to give it a shot. Its only $53. That's prob more for the fan issue and not the warming up issue correct?
2011 Ford Flex AWD Ecoboost 3.5l twinturbo

SHOdded

#11
December 27, 2016, 07:39:44 PM
Correct, because the tstat should not be allowing coolant flow prior to its rated temp anyway.
2007 Ford Edge SEL, Powerstop F/R Brake Kit, TXT LED 6000K Lo & Hi Beams, W16W LED Reverse Bulbs, 3BSpec 2.5w Map Lights, 5W Cree rear dome lights, 5W Cree cargo light, DTBL LED Taillights

If tuned:  Take note of the strategy code as you return to stock (including 3 bar MAP to 2 bar MAP) -> take car in & get it serviced -> check strategy code when you get car back -> have tuner update your tune if the strategy code has changed -> reload tune -> ENJOY!

SHOdded

#12
December 27, 2016, 07:41:44 PM
Did the oreillys come with a gasket, and is it installed on the correct side?
2007 Ford Edge SEL, Powerstop F/R Brake Kit, TXT LED 6000K Lo & Hi Beams, W16W LED Reverse Bulbs, 3BSpec 2.5w Map Lights, 5W Cree rear dome lights, 5W Cree cargo light, DTBL LED Taillights

If tuned:  Take note of the strategy code as you return to stock (including 3 bar MAP to 2 bar MAP) -> take car in & get it serviced -> check strategy code when you get car back -> have tuner update your tune if the strategy code has changed -> reload tune -> ENJOY!

SHOdded

#13
December 27, 2016, 07:46:57 PM Last Edit: December 27, 2016, 07:49:00 PM by SHOdded
I will have to look it up, but I had posted an intake R & R a few days back.  Should have the specs in there.
http://www.ecoboostperformanceforum.com/index.php/topic,7022.msg107645.html#msg107645
2007 Ford Edge SEL, Powerstop F/R Brake Kit, TXT LED 6000K Lo & Hi Beams, W16W LED Reverse Bulbs, 3BSpec 2.5w Map Lights, 5W Cree rear dome lights, 5W Cree cargo light, DTBL LED Taillights

If tuned:  Take note of the strategy code as you return to stock (including 3 bar MAP to 2 bar MAP) -> take car in & get it serviced -> check strategy code when you get car back -> have tuner update your tune if the strategy code has changed -> reload tune -> ENJOY!

Flexthis2011EB

#14
December 27, 2016, 08:06:45 PM
Yep. Found it. Thank you!
2011 Ford Flex AWD Ecoboost 3.5l twinturbo
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