Cruise Control Not Working
Sep 17, 2025 | 11:43 AM
Thread Starter
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Mountain Pass
Joined: Sep 2010
Posts: 132
Likes: 5
Cruise Control Not Working
I recently replaced a leaky water crossover gasket and when I was all done under the hood I noticed my cruise control wasn’t functioning.
Did I knock something loose perhaps? I checked fuses #46, #76 and #10 (as per a suggestion from a previous thread) and still nothing.
What do y’all think? It’s something super simple, right? 😄
Sep 18, 2025 | 08:02 PM
Joined: Feb 2005
Posts: 784
Likes: 26
Likely knocked something loose. Check vacuum lines.
Sep 18, 2025 | 08:29 PM
Joined: Jan 2004
Posts: 19,762
Likes: 1,079
From: St Louis
Identify model year and engine.
Sep 18, 2025 | 09:44 PM
Thread Starter
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Mountain Pass
Joined: Sep 2010
Posts: 132
Likes: 5
It’s a 2010 F-150, XTR, 5.4 litre, 4x4.
Sep 19, 2025 | 06:27 AM
Joined: Jan 2004
Posts: 19,762
Likes: 1,079
From: St Louis
Quote:
Originally Posted by
wirelessengineer
Likely knocked something loose. Check vacuum lines.
100% fly-by-wire system, doesn't use vacuum for the speed control. Vacuum speed controls went away in the 90s on Fords.
Sep 19, 2025 | 06:30 AM
Joined: Jan 2004
Posts: 19,762
Likes: 1,079
From: St Louis
Quote:
Originally Posted by
BruceJeremy
It’s a 2010 F-150, XTR, 5.4 litre, 4x4.
Do you have a scan tool or comparable that can read PCM PIDs? Need to see what the PCM is "seeing".
For easy stuff, I'd suggest checking operation of the BPP switch.
Quote:
Did I knock something loose perhaps?
If the engine drives normally, there's nothing under the hood to knock loose that can affect only the speed control.
Sep 19, 2025 | 02:38 PM
Thread Starter
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Mountain Pass
Joined: Sep 2010
Posts: 132
Likes: 5
Is Forscan a decent scan tool? I installed the free one-month trial to turn off my tire pressure gauge back in the Spring. Should I re-subscribe and do a test?
Sep 19, 2025 | 04:25 PM
Joined: Jan 2004
Posts: 19,762
Likes: 1,079
From: St Louis
A paid subscription for Forscan, last I checked, is not needed for reading stuff.
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