2008 4x4 Duramax Chevy Silverado
January 15th, 2021 | 8:49 PM
#2
CF Veteran
Joined: May 2011
Posts: 1,481
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From: Central Iowa
Any warning lights or messages on the dash, such as check charging system?
If they both quit suddenly, the first things to check are:
1) The serpentine belt failed (broke) and the pump pulley isn’t spinning, which would also cause the alternator to stop charging and set the warning message/light.
2) The pressure hose burst and fluid is leaking; or it could have collapsed and is causing a restriction. Either one would likely cause pump noise.
3) An internal component to the pump failed and it needs replacement.
If they both quit suddenly, the first things to check are:
1) The serpentine belt failed (broke) and the pump pulley isn’t spinning, which would also cause the alternator to stop charging and set the warning message/light.
2) The pressure hose burst and fluid is leaking; or it could have collapsed and is causing a restriction. Either one would likely cause pump noise.
3) An internal component to the pump failed and it needs replacement.
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