GAUGES WHAT IS MAKING MY GAUGES NOT WORK AND ACT CRAZY?

Sometimes it looks crazy too. But first look for good grounds Battery, cluster gauge
you will have to retrieve the faulty code with a scanner that can read the code.

Hope it help

Sounds like it could have a weak alternator. In gear the idle is always lower than in park. A low voltage situation could cause the gagues to act up

Sounds like a bad battery cable or connection somewhere.

Speed sensors will make the van act like that I would take it to a repair shop if they tell u some ridiculous part or price I would shop around there is alot of grimy repair shops out there keep in mind just because they have a national known name dont mean they aint honest

Hi,

Pretty common issue with the 03-06 Trailblazers. What happens is the motor behind the gauge wears out over time, eventually more gauges will stop working or start acting crazy.

Check out this page for more details on Trailblazer instrument cluster repair.

please keep me posted as well, ALL my gauges are doing the same. First the gas, filled it one day and it fell all the way and light turned on, then my themostat, freaked me out, thought i was overheating,...NO just the guage, NOW my spedometer is stuck on 120, and my RPM's are acting crazy. i have read tons with this same problem, WHY WONT the manufacturer DO SOMTHING??

gauges I have no idea but check your fuel pump

May sound crazy but have the alternator checked, when it fails it will shut off the gauges and make all of the electronic equipment act strange. I had a cherokee that did this to the gauges but that was b/c it was full of mud from my previous trip.

check and make sure all the fuses are in good but it sounds like a bad ground wire

you have a fuel pump problem it was shorting for some reason hence the gauge going crazy from the float circuit being shorted. your fuel pump is on it's last leg have it replace this will solve the problem. please rate this