Rick's Free Auto Repair Advice

Posts Tagged: Trailblazer no start

Trailblazer no start

How to diagnose and fix a Trailblazer no start condition If you’ve got a Trailblazer no start condition, first identify when you’ve got a blown fuse #28 (15A on the 4.2L engine and 10A on the 5.3L engine) in the underhood fuse box. A blown fuse #28 will cause a crank/no start condition because it powers the PCM and fuel injectors. Without power, the PCM will not energize the starter relay, so no power can flow to the starter motor. This is a tricky one to diagnose because it’s so … Read More

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