Where can I ask mechanical problems?
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New User
Joined: Oct 2010
Posts: 5
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here is the problem we have, i posted this elsewhere and have no replies :(
2001 Ford F250 5.4 liter. Thats all i know as for details..
We can get the truck to turn over, and it will stay on as long as we do not let off the gas. it will also not start unless giving it a bit of gas. We did replace the PCV valve last night, that did help with a small odd noise. Also, when the truck is running, it has a very odd smell. any ideas what this could be....?? fuel pump, air flow sensor, and the air intake control are all suggestions that i have been given thus far.
Also, is there anywhere to find a manual with a labeled diagram to identify some parts under the hood?
We can get the truck to turn over, and it will stay on as long as we do not let off the gas. it will also not start unless giving it a bit of gas. We did replace the PCV valve last night, that did help with a small odd noise. Also, when the truck is running, it has a very odd smell. any ideas what this could be....?? fuel pump, air flow sensor, and the air intake control are all suggestions that i have been given thus far.
Also, is there anywhere to find a manual with a labeled diagram to identify some parts under the hood?
Cargo Master
Joined: Jan 2008
Posts: 2,566
Likes: 18
From: The Great White North!
I would check the IAC- idle air control. Might need cleaning/replacing. If you use the search and look up iac you will find a thread with pictures and symptoms.
You can use this picture from the V-10 to get an idea of where it is. https://www.ford-trucks.com/forums/5...rsion-v10.html
You can use this picture from the V-10 to get an idea of where it is. https://www.ford-trucks.com/forums/5...rsion-v10.html
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Posting Guru
Joined: Dec 2006
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I've solved this problem twice in a 150 with a 4.6 once and a expedition with a 5.4 twice now i believe on each occasion i sprayed carb cleaner into the throttle bodies scrubbed some with a tooth brush and it fixed it. I have heard that carb cleaner can damage the sensors but i never had an issue
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New User
Joined: Oct 2010
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I cant even describe the smell, more chemical like than sulpher.. and it actually coming from under the hood, not the exhaust. I did go and get an Auto scanner today and will see if throws any codes tonight. we have sprayed the carb cleaner in there and thats when it did seem to start a bit better, but still died.. hope i have an update by monday.
thank you all for the replies, it has helped...
thank you all for the replies, it has helped...
Fleet Mechanic
Joined: Apr 2007
Posts: 1,433
Likes: 7
From: NH
I would check IAC as well as the MAF (mass air flow sensor). A chemical smell under the hood could possibly be an electrical issue.
Grab a good drop light and do a thorough inspection under the hood.
Grab a good drop light and do a thorough inspection under the hood.
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