Proportioning Valve and Bleeding

[Raoul Ross]

Another issue on this 85 C10 Suburban cropped up while replacing the fuel pump (the original problem). While replacing the fuel pump the proportioning valve started weeping, all by itself. You know how it goes, bring a neglected vehicle in to work on one problem and another pops-up.

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Found a replacement valve (not easy anymore) but I have one question about bleeding the system after replacement... is there a tool to keep the internal valve from moving while bleeding or should I just use a pressure bleeder on the M/C and open the wheel bleeders? It's been a while since I've done one.

 

[jh86]

I used the tool that threads into switch location

 

[Raoul Ross]

I've kinda looked around for that tool but not finding it... what's it called? Gotta P/N or manufacturer?

 

[Ken B]

Proportioning valve bleeder tool. Amazon 7 bucks

 

[jh86]

This is the one I bought

https://a.co/d/8EupJ1X

 

[ali_c20]

You could gravity bleed the brakes. No pumping and tool required.

 

[Raoul Ross]

Ordered the 'Tool' at Amazon, Thanx guys!

I will try pressure bleeding first and then do the pedal pumping thing if I'm not satisfied.

 

[Toad455]

I just bought the same tool and a new PV_4 valve. I've never used this tool before so I'm interested how it works out for you, I still have to install new lines, master, etc on a new build so it'll be a while before I get to it.