I have a 2002 Buick Regal. The instrument cluster sometimes wprks and other times doesn't. All 3 gauge work intermediate work. How hard is it to replace it

SOURCE: 2000 Chrysler Voyager Instrument Cluster is dead

have you got a dimmer switch on your model to dim the dash lights. if you have it may be faulty. link the cables together if the lights work the switch is faulty. if you have not got a dimmer switch
your printed circuit on the back of the dash may be faulty or the plug in the back of the dash is not pushed all the way in. hope this helps

SOURCE: instrument panel cluster gauges and odometer has stopped working

I had all my analog instrument panel gauges stop working after they did the state emissions test. I found the proper fuse in the fuse block located under the hood. Simply unplugged the fuse, noticed it was still good, and plugged the same fuse (10A) back in and all the gauges started working again. Guess it needed a reset atfer they plugged in for the emissions.

SOURCE: how to change the rear 3 spark plugs on a Buick regal LS 2002

You can try rotating the spark plug boot a little bit-not even a 1/4 turn-to break the seal between the plugand the boot. Then pull the boot wire off with a pliers on the metal boot shield. Once the boot has beet rotated on the plug, the shield helps to remove it.

SOURCE: 95 saab 900 turb0 gauge cluster works intermetanly

I have this problem too and my new Saab mechanic told me that I would probably need a new instrument cluster. He said a brand new one costs $2500 but that he would order me a used one from a car that had fewer miles than mine as you can set them back but not forward. He both diagnosed and temporarily "fixed" the problem by slamming his hand really hard on the dash over the panel and all the lights and gauges immediately started working fine....for now. I haven't had the work done yet (I have a 1998 Saab 900S with 130K) so if anyone has any other ideas about this I would love to know what they are. This issue with the gauges and dash lights has been happening on and off for over a YEAR and this is the first time someone has had any idea what it is. I already had my ignition switched replaced so we know that's not what it was. THANKS

SOURCE: Instrument cluster not working

if its not a fuse. try a relay. itll be under the hood in a little box. if thats not it than it could be a short in the wiring.check your running lights as well. most of the time they are ran on the same fuse so if one doesnt work the other one probably wont. also if you have recently replaced your stereo. check over the wiring on it because something could have got loose.