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Old Today, 12:49 AM   #1
jhe.1973
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Ever had the plastic power steering dipstick melt?

Hi Everyone,

Thursday upon starting my wrecker the steering wheel started spinning to the right by itself. When I grabbed it to turn back, it took off out of my hands spinning all the way to the left.

The pump was making noise as if it was out of fluid.

Shut it off popped the hood to look into the pump. The cap to the reservoir spun freely w/o the usual clicks.

This is what it looks like now on the right:

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Everything from the rubber washer on down is nowhere to be seen.

I figure the missing parts have been ground up by the pump and circulated into the steering box, causing whatever valve that moves back and forth to stick in it's last position.

Any ideas? .... especially as to how the dipstick got hot enough to melt !!!
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My C30 wrecker build/repair/update thread: https://67-72chevytrucks.com/vboard/...d.php?t=855904
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Old Today, 08:21 AM   #2
KevinK7
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Re: Ever had the plastic power steering dipstick melt?

I don't recall if the original caps had (and don't know if yours 'had') the metal piece on it before-hand, but if so, it's possible (not sure why) it could have come loose, fell into the PS fluid resevoir, and got 'chopped up'. In the process, caused the wheel to 'turn on it's own', along with creating the heat that led to the 'meltDown'. Some of this makes sense (ie the metal falling in, causing the steering issue), but even I have a hard time imagining it got SO hot to melt the plastic, but hey, I'm just guessing here...
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Old Today, 01:09 PM   #3
Bob B.
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Re: Ever had the plastic power steering dipstick melt?

It sounds like you have a problem in the steering box, or the hoses are backwards. The pump was 'dead-heading', which will cause the fluid to get very hot very quickly. Unfortunately, this will also cook all the seals. Surprised it didn't toss the belt.
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