Okay... I'm driving a 2005 TrailBlazer LS/EXT, 6-cyl, 4WD. Has performed pretty much flawlessly since I bought it new in 2005.
HOWEVER... In the last month, there have been some peculiar problems. First of all, my air conditioning fan control suddenly lost its maximum setting (setting 5). Just stopped blowing altogether on 5. About a week later, it lost setting 4. So now my maximum fan setting is 3.
Aside from the AC control, everything else seemed fine.
Then, three weeks ago, I drove down to fill up the tank, and when I tried to start the truck afterwards, nothing happened. Absolutely nothing. Like it didn't even have a battery in it. I had to get it towed (for the first time ever) to the shop, where they quickly diagnosed...a completely dead battery.
HOW does a battery go from cranking instantly on one bump to completely dead in less than 10 minutes?
Anyway, I had a new battery installed, and everything seemed to be fine (except for the AC controls, which were still screwed).
Then, about a week after the battery incident, I drove the TB to near empty and got a low fuel warning. No prob, I filled up the tank, cranked the truck afterwards, and the gas gauge went haywire on me. It showed the tank was still empty (warning chime and everything), but a few minutes later the gauge jumped up to a quarter-tank. Thirty minutes later it jumped up to full. It's been jumping up and down ever since, so I have to rely on the odometer.
This sounds to me like several electrical problems with a common source, possibly.
Any ideas?
HOWEVER... In the last month, there have been some peculiar problems. First of all, my air conditioning fan control suddenly lost its maximum setting (setting 5). Just stopped blowing altogether on 5. About a week later, it lost setting 4. So now my maximum fan setting is 3.
Aside from the AC control, everything else seemed fine.
Then, three weeks ago, I drove down to fill up the tank, and when I tried to start the truck afterwards, nothing happened. Absolutely nothing. Like it didn't even have a battery in it. I had to get it towed (for the first time ever) to the shop, where they quickly diagnosed...a completely dead battery.
HOW does a battery go from cranking instantly on one bump to completely dead in less than 10 minutes?
Anyway, I had a new battery installed, and everything seemed to be fine (except for the AC controls, which were still screwed).
Then, about a week after the battery incident, I drove the TB to near empty and got a low fuel warning. No prob, I filled up the tank, cranked the truck afterwards, and the gas gauge went haywire on me. It showed the tank was still empty (warning chime and everything), but a few minutes later the gauge jumped up to a quarter-tank. Thirty minutes later it jumped up to full. It's been jumping up and down ever since, so I have to rely on the odometer.
This sounds to me like several electrical problems with a common source, possibly.
Any ideas?