Body rattles and squeaks.
Engine light comes on frequently due to apparent engine miss-fire and engine lacks power.
4x4 control module failed.
Fuses blow repeatedly causing loss of transfer case control.
This vehicle is nice looking and performs OK when working properly.
The problems listed above are on-going, the truck has been in the service dept. 3 weeks in a row with similar problems. The dealer does not seem to care that this is a really big inconvenience.
I have had some of the same problems. I have a 2002 ZR2 with 60,000 miles, and for the most part love it. It handles good while traveling, and is great offroad, but problems keep nagging me.
Fuel economy is horrible. The 4WD module went out-$400. Went for awhile with no problems, then the airflow valve failed. Recently, the oil lines needed to be replaced (leaking) which cost $300. The next week, it started shaking badly. Turned out the bearings in the rear differential were burnt. $1000. Also the u-joints needed replacing (which I know go out on this kind of truck). It also rattles quite a bit. Add to this the dozens of times the SES light has come on, for "a knock sensor" and it's just not worth worrying about.
When its working, its as fun a truck as one could hope for. When its not...
My advice: fork out the extras $$$ and get a tacoma.