since you're doing it yourself,I gather the vehicle is out of waranty.
Pulled it yesterday and will mail to a repair place this week. Cost about $100 to repair. If I ordered the stepper motors and did it myself, then could do for about $40.
Remember those computers that were failing because of bad capacitors? Dell got hit particularly hard and then also tried to cover it up.
GM has done the same with bad stepper motors, but a few at least did get a class action settlement. GM however placed the very same defective "stepper" motors in many instrument clusters across many models and more than just the models that are part of the class action settlement. The NHTSA is worthless it seems in forcing GM do a recall on ALL instrument clusters with the defective stepper motors.
I'll be saving my repair ticket though, just in case justice ever happens. Can you hear me GM? We have two but next time we buy it will be NONE since you've not stepped up to take responsibility for your faulty part. On this particular 2005 Buick LeSabre model, the gas and temperature gauges have quit working properly. I'll be having all 4 stepper motors replaced in it however, just so I don't have to do it all over again for the other two stepper motors when they fail.
Next will be my daughter's 2004 Chevy Impala cluster. Gas gauge on it is not working for past year and I think one of the others is getting bad too. There's quite the cottage industry sprung up by those taking opportunity from GM's sins.
Just look at the problems people have had when the speedometer failed. Any needle readout on the GM instrument clusters can fail prematurely. Supposedly the new type stepper motors don't have the problem like the originals did, but don't hold your breath waiting for GM to admit and fix the problem across all the vehicles they put the defective ones in.
Of course you can pull the instrument cluster and still drive the vehicle, while the cluster is being sent off for repair, unless your wife refuses to drive it without having a speedometer in the car. Thankfully she can use my daughter's car (off in Marines right now) as long as she doesn't need to see a working gas gauge too, sigh.
I've always bought American much as I can, but really thinking Honda for wife's next vehicle around 2011-2012. Meanwhile, my 2003 Dodge Grand Caravan keeps rolling along fine, but while under warranty it had the control module computer die, and a steering hose recall, but since then only a can of freon for the AC. Oh yeah, one auto lock on a sliding back door no longer works, thankfully the driver's side. At least the gauges all work right.

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