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Help us help you. By posting the year, make, model and engine near the beginning of your help request, followed by the symptoms (no start, high idle, misfire etc.) Along with any prevalent Diagnostic Trouble Codes, aka DTCs, other forum members will be able to help you get to a solution more quickly and easily!

2004 chevy trailblazer 4.2 surging then stalling

  • jerry r
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4 years 6 months ago - 4 years 6 months ago #48331 by jerry r
2004 chevy trailblazer 4.2 surging then stalling was created by jerry r
Just replaced a timing on a 2004 blazer 4.2 now rpm gos up to 3000 momentarily then drops all the way back down to zero and dies
Last edit: 4 years 6 months ago by jerry r.

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4 years 6 months ago #48337 by jerry r
Replied by jerry r on topic 2004 chevy trailblazer 4.2 surging then stalling
No codes map might be suspect

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  • Noah
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4 years 6 months ago #48338 by Noah
Replied by Noah on topic 2004 chevy trailblazer 4.2 surging then stalling
Any vacuum leaks? I seem to recall the intake manifold is a bit tricky on those.
"Ground cannot be checked with a 10mm socket"

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