Do I need a new flash?
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Senior User
Joined: Dec 2003
Posts: 215
Likes: 0
From: Las Vegas
Do I need a new flash?
I have a 2004 built on 11/13/03. The truck runs great except for the engine fan turns on for no reason at all while driving down the highway. Now at about 21k miles the truck is starting to idle very rough. I just took a 1400 mile road trip and when I stopped to get gas the truck idled like it had a huge camshaft in it.
Do any of these problems seem flash fix related? Do I dare flash it?
Thank
Mark
Do any of these problems seem flash fix related? Do I dare flash it?
Thank
Mark
Former Vendor
Joined: Mar 2004
Posts: 4,362
Likes: 3
From: Hendersonville, NC
Well I would say chances are either the wire chafing issue, or the air in oil issue. There are numerous other threads about these issues and their symptoms here, so read around, you might find something. Im sure someone here can help you more than I, there are lots who have experienced this and have become great at diagnosis.
Post Fiend
Joined: Oct 2002
Posts: 11,314
Likes: 4
Would highly suspect the wire chafing issue ....
do a search for wire chafing and bet it has a picture with where to look :-)
https://www.ford-trucks.com/forums/s...=wire+chafing+
good luck !
do a search for wire chafing and bet it has a picture with where to look :-)
https://www.ford-trucks.com/forums/s...=wire+chafing+
good luck !
Posting Guru
Joined: May 2004
Posts: 1,366
Likes: 2
From: Northern Utah
My 03 occasionally experiences a similar symptom during roadtrips, only during the roadtrip- Not the next morning. I thought it could be due to elevation changes but that is only a guess. Some of my roadtrip info is in the thread titled "Highway Mileage". If you do find a cure I'd sure apperciate knowing. Thanks.
Senior User
Joined: Dec 2003
Posts: 232
Likes: 0
From: Cross Plains, TN
Originally Posted by VegasSuperDuty
I notice the idle problem only after a length of driving. If I drive for short amounts of time the idle is fine.
Check for wiring harrness. I had mine replace at 1800 miles.
