‘97 Yukon work horse

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exp500

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NorthernYukon97- The best way to eliminate the EVO system is to replace Steering pressure hose. Use a 96 hose. Disconnect wires from EVO valve at P.S pump, unscrew EVO, Reconnect wires and tyrap securely out of the way.(leaving valve connected fools computer. no codes) Install 96 Hose. I like to re-shim pump for better feel too(see other steering posts).
EVO increases flow at low speeds when working properly, just a solenoid valve. So when it does it at the wrong time its dangerous/ why there is a bypass kit. Should have been a recall. (96 hose $30, Kit $60 and one more fitting to leak.
 
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NorthernYukon97

NorthernYukon97

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Thank you exp500, appreciate it. I’ll look into that. It’ll be my next project in this truck.
Cheers,
 

exp500

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NorthernYukon- I forgot to mention the flow control valve in back of pump. A hex headed fitting that the pressure hose screws into. Almost any metric saginaw will work, need a throat dia of about .110-.140 . Hydroboost about .160-.200. I usually replace the pump too with a 96 that has it installed already.There is a spool,spring and ball behind, so careful when removing EVO also.
 
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NorthernYukon97

NorthernYukon97

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Hi Everyone, just out working around the yard today and snapped a couple of quick pictures of the old Yukon. Paint is getting a little old, but still washes up pretty good.

Have a good summer everyone,
Cheers, :happy160:

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89Suburban

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NorthernYukon97

NorthernYukon97

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Hi guys, decided to get the Yukon ready for another winter. I picked up that bypass kit, haven’t installed it yet. And looked at the rear defroster. Cleaned up the contacts, and found one plunger stuck. Before I bought another one, figured I would see if I could fix it. It’s is serviceable at the end of the day. Disassembled it, cleaned everything up, cleaned all the contacts, and res installed it. We’ve had a couple frosts now, next frost we get I’ll give it a try and see if it works now. A few pics.

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I’ll report back either way if it worked or not..
:cheers:
 
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NorthernYukon97

NorthernYukon97

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Why was this thread moved to pictures????

I don’t even know how to find the pictures forum??
 
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NorthernYukon97

NorthernYukon97

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Well, I guess that’s it for me.

The general forum for this year or generation is not exactly a hot bed of activity… you can’t tell me moving this thread was necessary, or any other threads for that matter. I don’t really have any interest in scrolling through various years/generations to see others Yukon’s…

I’m not even sure how this is a build thread? I have build threads.. frames in rotisserie’s, engines being built, tech info, etc etc etc…. this ain’t one.

So, I wish everyone the best, and this thread is done. I’ll stick to my other forums. I really don’t like it when mods have to start messing with things, for, IMO, no particular reason at all.

Why would you want people to have to search all over for specific generation info or builds anyway? And scroll through pages and pages….?
 

pwtr02ss

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Well, I guess that’s it for me.

The general forum for this year or generation is not exactly a hot bed of activity… you can’t tell me moving this thread was necessary, or any other threads for that matter. I don’t really have any interest in scrolling through various years/generations to see others Yukon’s…

I’m not even sure how this is a build thread? I have build threads.. frames in rotisserie’s, engines being built, tech info, etc etc etc…. this ain’t one.

So, I wish everyone the best, and this thread is done. I’ll stick to my other forums. I really don’t like it when mods have to start messing with things, for, IMO, no particular reason at all.

Why would you want people to have to search all over for specific generation info or builds anyway? And scroll through pages and pages….?
Hate to see you leave. I’m glad you posted everything that you did. It was a great read. Good job on keeping it in tip top shape
 
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NorthernYukon97

NorthernYukon97

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Thank you, not leaving, just not going to keep up this thread that’s all. I see other threads similar in this generations section..?

I can’t stand it when mods start messing with sites. Been there before, and the sites usually go down hill very quickly. Their site, do as they wish.

And frankly, so what if it is considered a build thread, keep the generations separate.

Yes I’m being pissy about it.

Just a heads up, yes, the rear defrost plunger contacts are serviceable. It worked. No issues. I’ll disassemble it again next summer and grease it up with some dielectric. The LH side needs to be replaced, it’s physically broken internally.
 

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