Why would an enigne chew through turbo's?...

[Rawze]

(02-13-2025 )tree98 Wrote:  On the X15 in particular some have a problem with eating speed sensors, they get wonky and see the turbo spinning even if the engine isn't running.The ECM not knowing that the speed it's seeing is wrong makes incorrect adjustments i guess and you end up with codes for high turbo inlet temp. Demandate solved the problem entirely but before that I replaced the speed sensor 3 times in 2 years.

Good point ... They tend to melt or go bad due to lugging the engine at low rpm and high torque. Not enough air flow around the outside of the engine, and the intake side of the turbo gets real hot, melting the speed sensor. Trucks that are geared too tall for the application (or Volvo's with their terrible under-hood air flow) tend to go thru turbo speed sensors for the X15's.