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2004 chevy trailblazer 4.2 surging then stalling

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3 years 3 weeks ago - 3 years 3 weeks 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: 3 years 3 weeks ago by jerry r.

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3 years 3 weeks 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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3 years 3 weeks 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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