1993 GMC Sierra 4.3 v6 EGR help?
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37's are within 10% of stock. The 10 speed has a really low 1st gear. Neither engine will really struggle. There is only one device currently that can trick the computer to correct for tire size, there are no programmers that work on the global B trucks that I am aware of, so programming the transmission shift points for re-gearing isn't possible at this time that is why there are no parts available for it. -
By JonasBoyle · Posted
Interesting topic GM really does a lot of customization through RPO codes, so builds can vary a lot even within the same “five nights at freddy's” -
On the bright side, there is FINALLY sunglasses storage. -
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By Grumpy Bear · Posted
18-NA-125 is the document from the OEM, GM, and yet; and although they give a full and detailed discussion of the inputs and outputs your conclusion is ? Am I reading that right? They gave you the answer and your response is , I'm trusting it anyway? Have you ever heard me say, "I don't do irrational"? -
"Pre existing lifter damage" What exactly do you mean by that? You should be asking for service records. Any warranty work performed as odds are if a truck has had a lifter or lifters and camshaft replaced that is a 2022.5+up, it was likely done under warranty. These DI engines have normal ticking noises such as the fuel injectors and high pressure fuel pump, so some noises will definitely be normal. A lifter that isn't pumping hydraulically all the way will stand out as it will be an intermittent tick, not a steady one. So like "tick_______tick tick_____tick_________tick tick tick___tick____tick_" It will most likely go away too about 5-7 minutes of run time. That truck would need a lifter or lifters but not because of the deactivation lock pin failing, but because its not building oil pressure to it right away. A collapsed lifter will be very obvious. It will be snapping or popping out the intake.
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