The ignition trigger has rising and falling peaks?

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Posted to Technical Discussion Forum on 11/5/2015 10 Replies

[2005 Chevrolet Trailblazer EXT LS, ECM/Inputs/Outputs Waveform]

Vehicle into us with almost dead miss on #3. Noticed vehicle due for plugs (we did - gapping to 0.042 not the 0.054 that came out) and changed one coil (#4 - FOUR not #3) which showed evidence ... Login to read more.

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Vehicle Data

2005 Chevrolet Trailblazer LS 4.2L

Engine	4.2 L
Trans	4-speed Automatic (Electronic)

Vehicle Data

2005 Chevrolet Trailblazer LS 4.2L

Engine	4.2 L
Trans	4-speed Automatic (Electronic)

10 Replies Received (View Replies)

10 Replies Received (Hide Replies)

Vehicle Data

2005 Chevrolet Trailblazer LS 4.2L

Vehicle Data

2005 Chevrolet Trailblazer LS 4.2L