I have always thought that keeping my rig in good operating order is very important to the over all well being of the truck. Unfortunately it's alot easier said than done. Now days with gas at such a high rate, it's all I can do just to keep the Blazer running, so buying stuff it doesn't necessarily need is pretty tough.
There comes a time when you have to justify buying parts, and sometimes you can't. My Blazer has a funny life. It spends the majority of it's time sitting, uncovered next to my dads shop. Of the time it spends running, I'd say about 70% is on the street, and the other 30% is on the trail. Those are the grim facts.
Lately, the old girl has been running pretty rough. I ran her pretty low on fuel and think it might have sucked some crap from the bottom of the gas tank. It went from driving very smooth to idling rough and not wanting to idle at all at a dead stop. Also, in the last few drives I have noticed that when I open up my secondaries, I don't get much extra power. That sucks.