A little history... we have an issue with a sticking wastegate piston. I'm not convinced its ONLY that. What happens is while driving at steady throttle, generally lower RPM, the wastegate pops open and stays there .It is sticking; we just tap it back towards closed and it pops closed. That's been happening for a few weeks.
The other day it started this: boost will fluctuate inexplicably... so we might be driving along loaded and suddenly the power drops. Notice the boost gauge shows a boost pressure loss, then increase at the same time.
I don't see why the wastegate would open under a condition where it isn't building boost pressure, so I'm thinking the issue might be boost pressure sensor.
Any thoughts?
Paccar MX13 power loss
Discussion in 'Trucks [ Eighteen Wheelers ]' started by STS1SS, Aug 7, 2019.
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The MX engine does not come equipped with a wastegated turbocharger. Confused as to what you are dealing with to say the least.
spsauerland, pushbroom and Rounded_nut Thank this. -
I am guessing talking about BPV...
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Realize this is a little old, but have you had any luck with anything... dealing with a similar issue
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