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My current fuel trims - idle, 2000rpm, 3000rpm all no load
Not sure if yours is flex fuel. I have a 2007 avalanche and it has been giving me fits with Stabilitrak needs service. Spent almost 600.00 for mechanics to find bad mass airflow sensor running borderline around 9-10grams intermittently. Normally around 5-7. Drove it for a few days and it did it...- Hollywood 2
- Post #66
- Forum: Engine & Drivetrain
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2021 5.3L Tahoe Alternator voltage?
Just replaced the alternator for my 2007 Avalanche thinking the same as you. I finally bit the bullet and took it to a good mechanic and it's normal for the voltage to fluctuate. The ecm looks/ builds a history with the battery life to supposedly keep it lasting longer from not charginging it as...- Hollywood 2
- Post #9
- Forum: General Discussion
