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5.3 GM ?
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<blockquote data-quote="Zogman" data-source="post: 488858" data-attributes="member: 328"><p><strong>Grandson got a used 2018 1500 Silverado in 2021 with 30,000 miles on it with the 5.3 motor. Presently it has about 70,000 miles. It started to make a serious knocking noise. Took it to his local Chevy garage and they replaced the water pump. Okay not a big deal. Prior to my BB150 I have had 4 Chevys all with the 5.3. I ran those 4 all slightly over 150.000 miles. Never a water pump. What happened to his? Did he get a Lemon? Is there an additive that you should add to the cooling system? </strong></p><p><strong></strong></p><p><strong>Thanks in advance for any and all answers!</strong></p></blockquote><p></p>
[QUOTE="Zogman, post: 488858, member: 328"] [B]Grandson got a used 2018 1500 Silverado in 2021 with 30,000 miles on it with the 5.3 motor. Presently it has about 70,000 miles. It started to make a serious knocking noise. Took it to his local Chevy garage and they replaced the water pump. Okay not a big deal. Prior to my BB150 I have had 4 Chevys all with the 5.3. I ran those 4 all slightly over 150.000 miles. Never a water pump. What happened to his? Did he get a Lemon? Is there an additive that you should add to the cooling system? Thanks in advance for any and all answers![/B] [/QUOTE]
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