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Thank you for allowing me to assist you, my name is Joe and I will be happy to assist you with your concern today.
When you try to rev past 3k rpms does it have no response at all or is there a hesitation like a misfire?
Is it acting like a rev limiter?
The reason I ask that is based on the possibility of a bad shift switch, but it greatly depends on exactly how it is acting up.
A video or audio file would be great.
Sorry for the delay. Dealing with septic issues. My apologies.
Yup, sounds exactly like a rev limiter would (for best way to describe it). Not an actual rev limiter at that rpm, just a way to describe it. Does it only do that while in gear or also in neutral?
So your saying that it now runs correctly?
Not necessarily, sometimes there is a simple malfunction that clearing fixes. And without the problem happening, it is very hard to diagnose. That may have actually fixed the problem, oddly sometimes an ecm can have an issue that a soft reset fixes, it may have also had a bad connection that you fixed.