Question about 2005 Pontiac Sunfire
These things are "self protected" and cannot be worked on. Even the lights are optic and cannot be replaced.
Best solution is to replace the whole gage unit (about 50 bucks at a salvage yard).
The dealer will have to install it as it needs to be coded or programed once installed and it's a bear to get the dash apart.
Even better solution....just dive it. :)
Posted on Sep 05, 2010
Pretty common problem with these. Here's a guide to learn how to fix GM instrument clusters yourself, I used it to fix mine and it worked great.How to guide for Sunfire instrument cluster repair
Posted on Oct 05, 2010
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Posted on Jan 02, 2017
If trans is still shifting its most likely a blown cluster fuse or bad cluster.If you have a check engine light & trans don't shift most likely blown trans fuse or trans vss (speedo) harness at right drive axle broken puple with white stripe wire or light green wire with black stripe
Posted on Sep 03, 2009
If the speedo isn't working properly, the first thing to check is the output speed sensor wires on the rear right side (near the bar code) of the tranny case. Follow the wires and make sure it hasn't been cut, pinched or shorted.
If all is well there, take the output speed sensor off. Watch out cause you'll get wet with tranny fluid (Dexron 6). (Be ready to plug it up.) If there are no metal chips or debris on the magnet inside, check it with an ohmeter on the two pins to see what the reading is. It should be around 6 to 10 ohms. If it's not steady, get a new one. Make sure the pins are clean on the connectors.
Apply some white or build grease around the shaft and "O" ring and re-install. Don't overtighten. The bolt is a "tap-tite" and should need only about 5 or 6 ft/lbs torque. (Run it in and give the bolt a quarter turn.)
Posted on Apr 15, 2009
Remove wheel, caliper and rotor. hit it solidly with a good hammer and it should go right through and fall out. Sometimes you will need to grind a bit off the side of the new one to get it past any obstructions. That will not harm its performance in any way unless you take way more than you need to off of it.To get it all the way back in, oil the threads, put a stack of large washers on it and tighten the nut on backwards till you draw it all the way in.
Posted on May 28, 2009
I just had the same issue with mine. I took it in and had the instrument cluster swapped out. Good news is that if its under regualar warranty, it will be covered. Bad news is if it isn't, then its about $250 from the dealer.
Posted on Feb 03, 2010
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