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2007 Edge engine stalling


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#1 OFFLINE   jlchoitz

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Posted 03 October 2018 - 07:00 PM

Our Edge has recently started quitting. It seems to happen while slowing to a stop. Its only done it a few times now. It has new spark plugs, new air filter, and I cleaned the MAF. It isnt producing any codes. Where should I start looking?







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#2 OFFLINE   jlchoitz

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Posted 03 October 2018 - 07:02 PM

It also has the issue where the transmission seems to be hunting around while on s slight incline. Its been doing it for a long time. Ive read of several things to try, any confirmed fixes, or could they be related?

#3 OFFLINE   WWWPerfA_ZN0W

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Posted 04 October 2018 - 01:15 AM

Used to associate that with a bad crank or cam sensor on older vehicles.  I would doublecheck that.  Could be simply a dirty/loose wiring connector.

 

Depending on how many miles on your Edge, cleaning the MAF may not be sufficient, but todate I have not seen it cause a stall coming to a stop.  Much more likely is the throttle body/TPS.

 

You can check the data on Forscan to see what is going on with timing, TB % etc.  First place I look to now for clues in the absence of codes (I assume you are not relying on CELs to say no codes).



#4 OFFLINE   jlchoitz

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Posted 06 October 2018 - 03:50 PM

New update. It left me sitting on the side of the road today. I had it towed home. After sitting a while its back running again, but it wont develop very much power. I scanned it, but it still isnt throwing any codes.

#5 OFFLINE   WWWPerfA_ZN0W

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Posted 07 October 2018 - 12:03 AM

I would recheck all electrical connections detached during the timing chain/water pump replacement process.  It is possible that the engine is using fixed timing instead of variable for a reason.  That will really kill power.

 

Does the fuel pump prime when you turn the ignition to START position?  Battery still strong CCA-wise?



#6 OFFLINE   fishx65

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Posted 07 October 2018 - 07:54 AM

New update. It left me sitting on the side of the road today. I had it towed home. After sitting a while its back running again, but it wont develop very much power. I scanned it, but it still isnt throwing any codes.

If it won't "develop much power" it's probably in limp mode.  Just disconnect the battery for a while.  My 08 Taurus, which I believe has the same trans as your Edge, has bad trans speed sensors and will go into limp mode once in a while. Of course, none of this has anything to do with your stalling problem.



#7 OFFLINE   jlchoitz

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Posted 07 October 2018 - 08:24 AM

I think it is a timing issue, as in the VVT isnt working properly, the valves have started clattering now. Every time I start it again it seems to do something new LOL! Now I have to figure out why, I need to get this thing fixed and trade it in ASAP!

#8 OFFLINE   jlchoitz

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Posted 07 October 2018 - 08:25 AM

When you drive it, it wont go past 30 mph or so and wont shift right at all.

#9 OFFLINE   jlchoitz

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Posted 09 October 2018 - 12:36 PM

Its definitely going into limp mode I disconnected the battery for a bit and it took right off for 30 seconds or so,and then went back into limp mode again. I ordered a throttle body, the local Ford service dept says this can all happen without any codes due to a bad throttle body. I ordered one, well see if that fixes it. If not, they say they can diagnose it for $119.
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#10 OFFLINE   PaulSchott

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Posted 10 October 2018 - 12:02 PM

Try cleaning the throttle body.  The idle air bypass may be at it max because of carbon buildup.  Probably won't fix the other stuff but it may keep it from stalling.


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