F150 shuts off and can't figure out why
#1
F150 shuts off and can't figure out why
I have a 2001 f150 5.4 V8 with roughly 180,000 miles. Spark plugs have been changed as well. Recently it's started shutting off only in idle. We had Advanced auto check the alternator and the battery, both of which tested good. If we have the lights on and it shuts off, the lights stay on. We've also just replaced the fuel filter and that didn't solve the problem. It only shuts off in idle. Do you have any suggestions?
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#4
I am having a similar problem. It has only happened to me on cold days though.
My post is still active and still trying to figure out what is going on here.
Have a read through this for some ideas.
https://www.f150online.com/forums/v8...af-sensor.html
If I get it figured out i'll let you know!
My post is still active and still trying to figure out what is going on here.
Have a read through this for some ideas.
https://www.f150online.com/forums/v8...af-sensor.html
If I get it figured out i'll let you know!
#5
@Smithtopher
Have you follow the excellent advice @glc and @projectSHO89 gave you in that thread? The key word seems to be "similar". The OP of this thread seems to have different symptoms, and has not mentioned a too lean code.
Have you follow the excellent advice @glc and @projectSHO89 gave you in that thread? The key word seems to be "similar". The OP of this thread seems to have different symptoms, and has not mentioned a too lean code.
Last edited by F150Torqued; 12-01-2015 at 10:29 AM. Reason: added bold
#6
@F150Torqued
I am following that advice, when I get the time. Unfortunately I am a very busy person so I am doing my best to get this taken care of. Also, horsyluvr did not provide any error codes so I was going by what I have experienced. I am also shutting off in idle so surely it would make sense to reach out to horsyluvr to see if we can figure something out.
I am following that advice, when I get the time. Unfortunately I am a very busy person so I am doing my best to get this taken care of. Also, horsyluvr did not provide any error codes so I was going by what I have experienced. I am also shutting off in idle so surely it would make sense to reach out to horsyluvr to see if we can figure something out.
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#9
Weve replaced the IAC. The old one had no spring in it. However it didn't solve the problem. It just now idles higher. The only error codes it's given are a leaking vaccum hose and spark plugs misfiring. The spark plugs were just replaced in August so we are betting it's the coils. Also we asked advanced auto for their opinion. They said the fuel oil pressure regulator might be bad and to clean it. If that makes a difference then replace it.
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