Hot answers tagged trailblazer
Too lean = too little fuel. I would probably try the fuel injector cleaning (Techron or comparable product) first and see if that clears up the issue. Next try swapping the fuel filter since this is usually a pretty simple/inexpensive repair. (Sorry, can't comment with current reputation)
You can try and get the transmission flushed and might get a few more thousand miles out of it, but from the sounds of it, your tranny is toast. It will either need a rebuild or a swapped out for a new/rebuilt one. What is happening is the soft parts of the transmission (bands/clutches) are worn out. They no longer have any grip to give you the momentum. ...
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