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Top 8 Causes Behind a GMC Check Engine Light (+ How to Fix)

RepairSmith

The dreaded GMC check engine light illuminating your dashboard is enough to have anyone wondering: What’s wrong with my car? While the little yellow light is undoubtedly a concern, it may just be a loose gas cap that needs tightening. This Article Contains: What Causes GMC Check Engine Light to Turn On?

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Can the Check Engine Light Come on Due to a Bad Gas Cap?

RepairSmith

Faced with the dreaded Check Engine Light (CEL)? While it’s easy to jump to the worst conclusions, sometimes your vehicle may simply trigger the Check Engine Light for gas cap issues. Let’s understand the connection between a bad gas cap and the Check Engine Light and how you can fix it.

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Ask The NAPA Experts: How To Check Fuel Pressure

The NAPA Network

You might know how to check the fuel level, but do you know how to check fuel pressure? There’s a handy gauge on the dashboard that tells you how much fuel is in the gas tank, but if that fuel isn’t reaching the engine under enough pressure, a mechanical failure could be brewing. What Does Low Fuel Pressure Mean?