4200

GM Engineers are Idiots…. Trailblazer/Envoy 4200 Thermostat Replacement

Today’s engineering marvel is the thermostat housing and location for the Trailblazer/Envoy 4200 platform…. Why would you need to put the thermostat behind the alternator????? That seems very dumb to me…..

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Easy way to remove intake manifold Chevrolet trailblazer / Isuzu ascender  vortec 4200 engine #diy
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How to step by step Thermostat Replacement Chevy Trailblazer 4.2L Vortec 4200 Fix Repair

How to video showing step by step replacement of a thermostat as a possible cause for an OBDII P0128 code on a 2004 Chevy Trailblazer with 4.2L Vortec 4200 engine, also referred to as the GM 4.2L LL8 I6 which is found in the following vehicles – 2002–2009 GMC Envoy, Envoy XL, and Envoy XUV […]

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