MAF Sensor Location Chevy Trailblazer 4.2L

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  • #11321 Reply


    Where is the MAF sensor located the truck ?

    RE: here is no Mass Air Flow (MAF) sensor for your Trailblazer. The 4.2 engines don’t utilize one.

  • #12939 Reply


    Is there an easier way for me to figure out which coil pack has gone bad in my 2003 Chevrolet Trailblazer other than taking it to the dealership and paying $100 for them to run the test on it?

  • #16811 Reply


    MAF is calculated by using the MAP sensor and TPS sensor and engine RPM data by the computer.

  • #16301 Reply


    I’m changing tie rods on a 02 trailblazer do both thread sizes fit 14 and 16 mm?i put a 14 mm wrench didn’t fit over the nut I put a 17 mm and it fit over.

  • #16303 Reply


    Not sure what your question is. Use whatever wrench fits the nut snuggly and will not strip it or round it off.

  • #16812 Reply


    If you just have an engine misfire with code P0300 and you think only one coil pack is bad, just try swapping a new one, one at a time, starting at the front. That one is #1 and is the most common to fail.

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