Knocking sounds from water pump
#1
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I have a 2016 Suburban and had recently done a cam swap/DoD delete. I had finished up and when I was tuning it I noticed the knock retard kept kicking on infrequently at idle. I tried to listen to where it was coming from and it was from the front of the engine. I originally thought it was chain slap or a bad pump/pulley but after further investigation via stethoscope it is coming directly from the thermostat housing. I plan to replace the thermostat and hopefully fix the problem but I would like to know if anyone else had similar problems or other possibilities if this isn’t the problem.
#2
![Default](/forum/images/icons/icon1.gif)
I have a 2016 Suburban and had recently done a cam swap/DoD delete. I had finished up and when I was tuning it I noticed the knock retard kept kicking on infrequently at idle. I tried to listen to where it was coming from and it was from the front of the engine. I originally thought it was chain slap or a bad pump/pulley but after further investigation via stethoscope it is coming directly from the thermostat housing. I plan to replace the thermostat and hopefully fix the problem but I would like to know if anyone else had similar problems or other possibilities if this isn’t the problem.
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