4200
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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