Ran out of time yesterday so I threw in the new check valve to see if that was the issue. It was not. Guess I'm changing the booster. This would be alot easier if the truck didn't have abs.
Ok, now I get you.
That's possible I guess. Once I get the booster off I'll give it a shake and see if I hear any sloshing.
I'm hoping I can remove it without disconnecting the brake lines, but we'll see.
04 4.0L 370k kms.
This issue started last winter, but I of course forgot about it until it started getting cold again, and it seems to happen more frequently/easily.
When the truck is first started in below freezing temps it acts like there is no brake assistance. The pedal drops at least...
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