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Discussion Starter #1
I have been putting brake fluid in alot lately. I havent found a leak at all. My brake pedals go all the way to the floor.
 

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probably bad master cylinder allowing air in


you have a leak somewhere...
 

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Yep. You have a leak for sure. Find and fix and you’ll be fine. Check inside all brake calipers and at all fittings. Even the tubing if you still find nothing. The fluid is getting out. Once you fix that, should be golden.
 

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It could be leaking past the master cylinder's rear seal, into the brake booster, which would explain why you are loosing fluid and don't see a leak.
 

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Is the new master cylinder push rod and yoke the same length? If not it may need adjusting to take up the brake pedal freeplay
That wouldn't explain his loss of brake fluid, however.
 

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Please check brake line insulation on fire wall by exhaust collector psgr side for brake fluid leaks.
On my truck both lines were rusting under heat insulation.
 

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Discussion Starter #12
Finally got my truck to the shop and it turns out it was the left caliper.
 

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I have been putting brake fluid in alot lately. I havent found a leak at all. My brake pedals go all the way to the floor.
Take it to an independent mechanic. Too dangerous (potentially).

It's obviously leaking a fair amount, and you can't find the leak, see a pro.
 

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Yoko, oh no! Get that fixed right.
 

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Change both calipers and the brake hoses is my opinion. Once I have to fix something I don't like to go back in a short time later and do the same thing on the other side, they are the same age usually. And brake hoses are cheap and break down over time.
 
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