- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
If it blinks and goes away, it is a "random misfire" that culminates before the light begins blinking. Sustained misfiring will result in a code, and the light staying on. If the light blinks and goes away, the issue is intermittent. Your problem usually occurs under acceleration or heavy load. The issue can often be solved with new spark plugs, though it could also be dirty injectors. The injectors on that vehicle are infamous, however I have been able to fix your problem with repeated use of highly concentrated fuel system cleaner. I use at least 3 times the recommended concentration of whatever cleaner. People rave about Sea Foam. I have used it and it works -- though I can't say whether it worked better than other brands I have used. I have owned 3 Blazers and 2 S-10's, including my current 2001 Blazer LT.
First try disconnecting the battery for about 10 minutes. This will reset all of your electrical systems and perhaps fix the issue.
If this doesn't work then check the 4 wheel drive transfer case electronic module in the right kick panel on the passenger side for corrosoion. If any posts are broken are burnt they will need to be replaced.
2001 Chevy Blazer it likes to stay in 4 low. replaced sensor, pannel motor, older computern to check it was placed for a couple weeks or less it will do the same thing again. Just dies and quits has to be restarted agin still in 4 low . Tried to shift the gears slowly, Place in reverse and 2HD pressed and held while backing up this dinn't work either. To get it home I had to hold it in neutral and run the gears again ginally I got it to a shop. He is out of ideas too.
I have a 2001 chevy blazer and for the last three years when i tried to engage by 4x4 the light would just flash, in any mode, low, high, or auto. I found a vacuum hose disconected located near the top center of the firewall. I plugged it in and i was good to go. After researching I found it is a common problem. The hose goes to the actuator under the battery.