RPM needle flickering!!

[53driver]

Hmmm. Flickering. I guess "flickering" needs to be symptomized...what's actually happening?
As in the "light" on the tach needle is going off and on? Or is the needle in fact quivering about a few hundred RPMs?

Light? No biggie. Call the dealer, inform them that they botched something and you'll get back to them after your trip. Hopefully it's just a connector that isn't seated all the way.

Or "flickering" as in needle indicator quivering +/- couple hundred RPMs?
As long as the tach needle is, in fact lying.....as long as you know that the engine isn't actually doing that as a result of the modification, you'll be safe - but maybe an intermittent connection can burn out an indicator part?
If the engine is unusually varying in RPMs with a constant throttle setting - especially after a cruise control installation - I'd get it checked before the trip. Again, either way, hopefully it is a connector that isn't seated al the way.

Best of luck.

[wantone]

Hmmm. Flickering. I guess "flickering" needs to be symptomized...what's actually happening?
As in the "light" on the tach needle is going off and on? Or is the needle in fact quivering about a few hundred RPMs?

Light? No biggie. Call the dealer, inform them that they botched something and you'll get back to them after your trip. Hopefully it's just a connector that isn't seated all the way.

Or "flickering" as in needle indicator quivering +/- couple hundred RPMs?
As long as the tach needle is, in fact lying.....as long as you know that the engine isn't actually doing that as a result of the modification, you'll be safe - but maybe an intermittent connection can burn out an indicator part?
If the engine is unusually varying in RPMs with a constant throttle setting - especially after a cruise control installation - I'd get it checked before the trip. Again, either way, hopefully it is a connector that isn't seated al the way.

Best of luck.

It's just the needle jumping up and down from 2 to 3 or 4k RPM. And sometimes the needle is dead. No issues with actual engine rpms, engine seems to be normal, its just the needle that is acting up.

[53driver]

It's just the needle jumping up and down from 2 to 3 or 4k RPM. And sometimes the needle is dead. No issues with actual engine rpms, engine seems to be normal, its just the needle that is acting up.

Copy. They probably didn't reconnect something all the way and it came "slightly more" loose on your ride home.
As I wrote, my only concern would be the actual electrical/mechanical gizmo "that translates the RPM reading from the ECU to something us mere mortals can understand" burning out due to being fed an intermittent signal.

Since they installed it, I'd call the dealer and tell them what's going on. They may want to make it right tomorrow morning.