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You can guess all day, but what you need to do is get it scanned for the trouble code. Since it clears on a restart, get it scanned after the light comes on but before the next restart, otherwise the scan result might not show any code.
Can a place like autozone scan beyond a normal scanner as I have a regular scantool. Or can forscan get the code? I haven't had my forscan out for a while but if it can see it, I'll fire it up.
Today I drove around 20 minutes before it came on.
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level
Slideshow: The VelociRaptor Expedition gains a lift, upgraded suspension, Brembo brakes, and trail-ready equipment while retaining the stock 440-horsepower EcoBoost V6.
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.