Do not replace the thermostat for this concern. However, if the gauge indicates an overheat condition, this is not normal, so diagnosis as needed.
This bulletin applies to 2015-2021 Chevy Colorado and GMC Canyon vehicles equipped with an LCV engine. The temperature gauge may fluctuate at idle or while driving. According to the bulletin, the “condition is deemed normal per engineering at this time.”
Do not replace the thermostat for this concern. However, if the gauge indicates an overheat condition, this is not normal, so diagnosis as needed.
Mike Mavrigian has written thousands of automotive technical magazine articles involving a variety ofspecialties, from engine building to wheel alignment, and has authored more than a dozen books that crisscross the automotive spectrum. Mike operates Birchwood Automotive, an Ohio shop that builds custom engines and performs vintage vehicle restorations. The shop also features a professional photo studio to document projects and to create images for articles and books.
