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Throttle body cleaning

az'03Silverado

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az'03Silverado Senior Enthusiast

az'03Silverado

Posted
Posted

I'm getting ready to flush my coolant system and figured while I'm at it I'll remove my throttle body and clean it. I have an '03 4.8L with the drive-by-wire system and wondered if there are any surprises? I have a new gasket and I know the coolant needs to be drained. Is there anything to be aware of with the electronic module that operates the throttle? Thanks

redvett Senior Enthusiast

redvett

Posted
Posted

You probably wont have any residue in the drive by wire since the PCV system is entirely different but you only need to push the blade open with your finger and spray away. No need to remove the throttle body to clean.

C & A s Dad Senior Enthusiast

C & A s Dad

Posted
Posted

Sam, I agree, you should not need to remove the tb.

 

I would suggest that you add a bottle of 96001 Kool It from Lubegard to your cooling system once you have complete the flush. This is a wonderful product that will reduce all chemically caused Electrolysis and is recommended by Modine, the premier mfg of radiators. We sell a lot of this product for this reason. It is alos designed to reduce your coolant temps but there is a lof of debate over this. If it does reduce your cooling temps, this is just a bonus.

az'03Silverado Senior Enthusiast

az'03Silverado

Posted
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Posted

Thanks for the replies. I noticed last time I pushed the blade open that it is gear-driven through the servo. Will the gears in the actuator be hurt by opening it manually? Just wondering.

Thanks again for the advice.

redvett Senior Enthusiast

redvett

Posted
Posted

No it wontas long as power is off. I check it yearly on my 01 Corvette and hasent hurt it and dont have any residue on it either.

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