I swapped out my 110 mph cluster out for a 145mph cluster about 6 months ago and have had no problems with it till now or should i say this month. It may be the Texas heat but my speedo tach works perfect at night but during the daytime I noticed it either does not work at all or is flashing back and forth from zero to current mph. Is there a way to fix this?

During the day I would say it has a 30% chance of messing up on me but it is getting more often over the past month.

 

OK it's gotten worse now it messes up a lot now.. I noticed my odometer doesn't work while the speedo is glitching up on me. Bad cluster or is it something else causing this?

 

Yeah, mine is stock, but it works randomly. Sometimes I think I know when it doesn't and does work (night and day) but then it just seemed when I was running late for work it wouldn't function. I'm not sure.. the Tach doesn't work either, or the Oil Pres. I don't know if it's the VSS or the cluster. It's electric, and I am a novice on that. Also, sometimes it seems that when I use my turn signals it causes the Speedo needle to fluctuate, then when I turn off my turn signal it is either fine again, or drops.

91 Camaro RS 305TBI.

Who can help us? It's aggravating.

 

Mine is just the speedo thats messing up but I'm going to swap my 110 mph back in and see if it is the cluster or not.