Ford Repair Questions? Ask a Mechanic for Answers ASAP
What do you need help on with your Explorer? Please keep in mind that I am not there to see, test or inspect your vehicle, so please provide as much detail as possible
any pending fault codes or current fault codes?
When it does stall, does it happen at a certain speed, or is it random?
How is the idle in drive while stopped?
Do you know what the voltage as well as resistance reading on the IAT sensor was when it showed 135 degrees
Ok, they dont tell us the reason for the revisions either unless the part was reconfigured or new parameters for it, and nothing showing in this case.
I have uploaded the connector pinout and wiring diagram for you
What I need you to do is to get voltage and resistance readings for the IAT when cold and when warmed up and post the temp reading and corresponding voltage and resistance readings for me
Correct on all counts.
Yes, faulty readings from the IAT can cause stalling
Yes, just leave this open until you can get back to me with the results and we will go from there
Welcome, I'm Chris (aka Moose) I prefer to work when others don't, I am here around lunch and after dinner till after midnight.
The previous tech has opted out. Would you like me to help on this possible wire issue?
This is my 1st answer, but does not have to be my only answer. You the website and myself expect you to have a ~~~5 STAR EXCELLENT~~~ experience with my help. Please let me know if you are pleased by selecting a star rating above or by replying and saying your pleased. Not rating or rating 1-2 stars does not benefit you nor me in any way. Follow up and reply as often and when needed, there is no extra charge to do so.
I have, were you able to monitor the fuel pressure when this occurred to confirm then the pressure was not dropping?
When you have this issue are you applying throttle, coasting, braking, or stopped?
Can you monitor the vacuum for me at hot idle?
Will your tool show short term fuel trims?
As of right now I am not worried about the IAT since its reading right when driving. Stopped at idle it is going to read high from the hot engine compartment. Your latest round of symptoms point more towards the vehicle intermittently losing its cam or crank sensor signal to the PCM.
Engine codes set for things that effect the emissions. If you lose a cam signal for example and it just shuts the engine off and does not cause a misfire per say then it would not effect the emissions and store a code.
It is going to be hard for you and a tech to diagnose this intermittent issue. One of the first things we would try is to make it stall by moving all wiring, and fuse boxes we can get to while running to see if we can make it stall assuming its a wire concern. If that does not find it then you need to try and find if there is a driving scenario that makes it occur.
Hello again Chris here,
Are you asking for a file from Ford on how to test the IAT and its circuit.
See the link below.
Sorry you were not pleased with my help.