EVO Delete Possible Without Removing Pump?

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PM18S4

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BLUF:
"Can an EVO Delete be done without removing Power Steering Pump?"
"If so, anyone have the documentation on how to do so?"


Background:
Got a leaky Power Steering Pump to Gearbox Assembly hose (GM 26056831).
The leak appears to be cause by rubbing against Gearbox Assembly as seen in the photo.
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The manual has the R&R instructions for the hoses and does not require the removal of the pump (1999 Ser. Man., Pg. 2-36).


While I'm doing this I was thinking of also doing an EVO Delete.
The service manual says that this CAN be done on vehicle:
1999 Ser. Man. 2-26
"To remove the variable assist steering actuator (4); refer to Fluid Flow Control Valve Actuator Replacement - On Vehicle"
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However, for some reason I can't find that section.

Looking from underneath, it looks like it might be possible.
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However, the NAPA tech bulletin points to an installation guide that says that the Pump has to be removed.
 

PM18S4

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Wouldn't a crowsfoot or open end wrench be able to get to the nut of the solenoid?

Been digging some more to try to find out what the EVO valve looks like off the pump.
Found a photo of it next to the EVO Delete U-pipe. Looks like a crowsfoot would easily go around it.
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In this other photo I found It looks like it's not impossible to pull the servo coils from the stem and gain easy access to the nut.
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Lastly, if I am doing an EVO delete, why would I care if grind off the servo coils and Stem so long as I gain access to the nut?
 

Orpedcrow

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I think it will be easier to pull the pump than do it in the truck. I don’t know that you can get any kind of grinder up there to cut the coil.
 

Komet

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Wouldn't a crowsfoot or open end wrench be able to get to the nut of the solenoid?

Been digging some more to try to find out what the EVO valve looks like off the pump.
Found a photo of it next to the EVO Delete U-pipe. Looks like a crowsfoot would easily go around it.

In this other photo I found It looks like it's not impossible to pull the servo coils from the stem and gain easy access to the nut.

Lastly, if I am doing an EVO delete, why would I care if grind off the servo coils and Stem so long as I gain access to the nut?
The wrench will get to it, and then it will round the edge clean off the thin, soft metal nut. You need the socket to apply torque evenly across all 6 surfaces. No 12pt socket either.

Grinding the EVO is fine, I did that so I could keep the socket nice.
 

east302

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As they said above, access is the problem. I installed a new pump a few years ago on a K1500 (that came with the delete already installed) and it leaked at that large nut. I tried to get a wrench on it to tighten it and what little I could catch tried to round the edges.

The pump had to come back out.
 
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