Turbo Speed Sensor Code #687

[Rawze]

(07-16-2025 )Stoneman Wrote:  Thank you for letting me join the forum i appreciate it. Im looking for advice and input on what could continually trigger the turbo speed code. the engine is bone stock 565/1850 X15, Date of MFG. 8/20. 496,000 miles. Had it to the dealorship and they changed Turbo Speed Sensor, Turbo and Actuator, Egr valve, intake pressure sensor, charge air cooler. Im going broke with the shop just throwing parts at it, any good advice?

Taking your truck to the OEM stealers$its of over-priced idiots is the most costly waste of time and moneys that you someone do. it will run them out of business fast!.

Like other have said.. if it is not de-mandated (not deleted) then START BY doing a proper EGR tune-up on that engine. - It should be done once a year!.
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