door just bounces open and won't "latch" have fiddled with it a bit and it will stay latched as long as I don't use it. would like to replace the latch/lock actuator but have not had any luck finding one... any info on a part number to search for or a website?

 

http://www.rockauto.com/catalog/moreinfo.php?pk=4632684&cc=1442782

 

Latch/Lock/Actuator Front Side Door L/H GM pn 20791792 (2006-2011)
Latch/Lock/Actuator Front Side Door R/H GM pn 20791793 (2006-2011)

Try a Google search, and you'll find at least a half dozen vendors.

Plus we have a sub-forum for commonly used part numbers here....

https://www.chevyhhr.net/forums/commonly-used-part-numbers-68/part-numbers-elusive-common-parts-broken-into-separate-posts-thread-48833/

 

did you check Gmpartsdirect.com? They have the lock actuators listed (but no part numbers) - ~ $92 each for a 2008 LT.

Have you tried giving it a bit of lube?

 

The part numbers in post #3 are for the complete Latch/Lock/Actuator assemblies.