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Posted

Until the engine is on the verge of overheating. 

 

Started after a few times taking the positive battery cable off and on.  Now no high speed with ac or normal operation. Bmc error and air bag codes. Went to a local shop and they were able to ramp it up with a computer. They suggested bad grounds. Cleaned them still the issue persist. 

 

At the point I want to run a relay and battery voltage to the fans. 

 

Anyone know what wire on the fans gets full voltage?

Posted
12 minutes ago, SteveP45 said:

What year, what model, what engine?

 

2014 silverado work truck 5.3. 

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