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What have you done to your GMT800 lately?
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<blockquote data-quote="GMC4x4" data-source="post: 6750" data-attributes="member: 531"><p>Just got done replacing both knock sensors and harness. Hopefully it fixes my pinging under load. Cause I'm supposed to drop it off in a couple of weeks to get a custom tune done by GPI. Bout to take it out for a test drive and see. I noticed alot of carbon build up in the intake runners on the heads so I'll pick up a bottle of seafood to run through it tonight.</p></blockquote><p></p>
[QUOTE="GMC4x4, post: 6750, member: 531"] Just got done replacing both knock sensors and harness. Hopefully it fixes my pinging under load. Cause I'm supposed to drop it off in a couple of weeks to get a custom tune done by GPI. Bout to take it out for a test drive and see. I noticed alot of carbon build up in the intake runners on the heads so I'll pick up a bottle of seafood to run through it tonight. [/QUOTE]
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What have you done to your GMT800 lately?
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