RPM's Go Up While Idling
Tuned
Joined: Jul 2010
Posts: 287
Likes: 11
From: Alliston, Ontario
I had the same thing happen, 2018 went in for emissions warranty last year and now it high idles all the time if its sitting for more then a minute or two. Very annoying. Prior it just did it when the temps got cold much like my old 6.0 use to do.
It would be nice if the dealership would tell you when they are going to re-flash your truck and tell you what to expect. If there is another program flash update after this that will omit the high idle please let me know. If it is to c/m a wet stacking issue then I guess I'll have to live with it. Appreciate the post as I was curious if others had found the same thing.
It would be nice if the dealership would tell you when they are going to re-flash your truck and tell you what to expect. If there is another program flash update after this that will omit the high idle please let me know. If it is to c/m a wet stacking issue then I guess I'll have to live with it. Appreciate the post as I was curious if others had found the same thing.
Lead Driver
Joined: Dec 2020
Posts: 8,640
Likes: 2,435
I had the same thing happen, 2018 went in for emissions warranty last year and now it high idles all the time if its sitting for more then a minute or two. Very annoying. Prior it just did it when the temps got cold much like my old 6.0 use to do.
It would be nice if the dealership would tell you when they are going to re-flash your truck and tell you what to expect. If there is another program flash update after this that will omit the high idle please let me know. If it is to c/m a wet stacking issue then I guess I'll have to live with it. Appreciate the post as I was curious if others had found the same thing.
It would be nice if the dealership would tell you when they are going to re-flash your truck and tell you what to expect. If there is another program flash update after this that will omit the high idle please let me know. If it is to c/m a wet stacking issue then I guess I'll have to live with it. Appreciate the post as I was curious if others had found the same thing.
I experienced the elevated idle for the 1st time recently. The reflash was done almost 2 years ago. The truck has idled for the same amount of time in the past but never did it increase RPM. This time the temps were in the upper 30's-low 40's and after a few minutes of idling from a cold start it kicked up to 1k RPM. I played around with it by hitting my actual high idle switch, and tapping the brake to see how it would react. It reacted in the same way as all others I've read about on here. To me it wasn't bothersome or a nuisance and if it is beneficial in some way I'm good with it.
FTE Legend
Joined: Mar 2017
Posts: 31,968
Likes: 9,197
From: Western NY
Dave, are you aware you don't have to buy a high idle kit to idle the truck up? You only need a $2 resistor and a couple butt splice connectors to use an upfitter switch to idle it up. Have a read here for all the info > https://www.ford-trucks.com/forums/1...-pictures.html
FTE Legend
Joined: Mar 2017
Posts: 31,968
Likes: 9,197
From: Western NY
I had the same thing happen, 2018 went in for emissions warranty last year and now it high idles all the time if its sitting for more then a minute or two. Very annoying. Prior it just did it when the temps got cold much like my old 6.0 use to do.
It would be nice if the dealership would tell you when they are going to re-flash your truck and tell you what to expect. If there is another program flash update after this that will omit the high idle please let me know. If it is to c/m a wet stacking issue then I guess I'll have to live with it. Appreciate the post as I was curious if others had found the same thing.
It would be nice if the dealership would tell you when they are going to re-flash your truck and tell you what to expect. If there is another program flash update after this that will omit the high idle please let me know. If it is to c/m a wet stacking issue then I guess I'll have to live with it. Appreciate the post as I was curious if others had found the same thing.
The high idle is intentional and emissions related just like that reprogram. I wouldn't expect Ford to back track on it. The only way to avoid emmisions related reprograms and whatever side effects they might have would be to ask the service advisor what they plan to do at every visit.
I experienced the elevated idle for the 1st time recently. The reflash was done almost 2 years ago. The truck has idled for the same amount of time in the past but never did it increase RPM. This time the temps were in the upper 30's-low 40's and after a few minutes of idling from a cold start it kicked up to 1k RPM. I played around with it by hitting my actual high idle switch, and tapping the brake to see how it would react. It reacted in the same way as all others I've read about on here. To me it wasn't bothersome or a nuisance and if it is beneficial in some way I'm good with it.
I experienced the elevated idle for the 1st time recently. The reflash was done almost 2 years ago. The truck has idled for the same amount of time in the past but never did it increase RPM. This time the temps were in the upper 30's-low 40's and after a few minutes of idling from a cold start it kicked up to 1k RPM. I played around with it by hitting my actual high idle switch, and tapping the brake to see how it would react. It reacted in the same way as all others I've read about on here. To me it wasn't bothersome or a nuisance and if it is beneficial in some way I'm good with it.
Tuned
Joined: Jul 2021
Posts: 372
Likes: 199
From: NE Oklahoma
No worries..... was just trying to save you some 💰
FTE Legend
Joined: Mar 2017
Posts: 31,968
Likes: 9,197
From: Western NY
Yeah I know... appreciate that Dirt thanks...
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 6 Best Deals Available on New Fords & Lincolns Right Now
Brett Foote
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level
Verdad Gallardo
Top 10 Fords at 2026 Carlisle Ford Nationals
Joe Kucinski
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Cargo Master
Joined: Feb 2010
Posts: 2,298
Likes: 94
From: Delta, CO
Same here ...I think I got 10 of them resistors for $1.50 lol. I did mine & a friends 2019 so I still have 8 left.
Tuned
Joined: Jul 2010
Posts: 287
Likes: 11
From: Alliston, Ontario
Just get the latest flash from the ford dealership if you want the high idle kit lol .
I just thought it was odd that after 10+ years of making the 6.7 that now they have to add a high idle even in warm temps. If it was such an issue you would think they would have done it long ago. In the cooler temps 100% agree with the engine kicking up.
I just thought it was odd that after 10+ years of making the 6.7 that now they have to add a high idle even in warm temps. If it was such an issue you would think they would have done it long ago. In the cooler temps 100% agree with the engine kicking up.
Thread
Thread Starter
Forum
Replies
Last Post
msmith53
1999 - 2003 7.3L Power Stroke Diesel
6
Jul 3, 2009 10:57 AM