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Discussion summary
YOUR RESEARCHSoft brake pedal ?
Leading reported evidence
Replace liquids in your car
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Suggestion
Not only the brake fluid, it's a good idea to change all the liquids in your car.
Leading evidence: 'Replace liquids in your car' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace liquids in your car' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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8 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Rennlist: 1 discussions
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When it does this I lift my foot and apply it again and the pedal is back to normal, it seems like it looses its prime after driving for 5 minutes so I give it a quick pump and it's back to normal for the next 30 seconds aprox.
Not loosing any fluid at all.
It started happening during this heat wave 2 weeks ago, haven't decided if that has got anything to do with it.
Brake pedal goes down an extra inch or two
When it does this I lift my foot and apply it again and the pedal is back to normal, it seems like it looses its prime after driving for 5 minutes so I give it a quick pump and it's back to normal for the next 30 seconds aprox. I'm guessing it's the master cylinder (or could be moisture in brake lines?) but if anyone has any insight before I start digging id appreciate it.
Do something about this. You have air in the system; if air is in there, other contaminants may have found their way in as well. Definitely time for a fluid change and bleed.
I plan to bleed it Forsure. Just thought I'd ask around first because I haven't touch the system. It just started doing this randomly on its own, so I was curious how air could get in. But I'll bleed and get see what happens from there
> It started happening during this heat wave 2 weeks ago, haven't decided if that has got anything to do with it.
It shouldn't have anything to do with the heat, but the fluid is the easiest and cheapest thing to address - and if you haven't done it recently, you'll be able to cross it off the list.
If you get that done and you've still got soft brakes, take a look at the brake booster (search here - lots of threads).
Has the car recently been outside during heavy rain, or have you washed it especially thoroughly recently? Check this thread out:
https://rennlist.com/forums/996-foru...sue-found.html
This may be useful for bleeding:
I appreciate the advice ! And I do was the car quite often yes. Haven't had a heavy rain fall in my area in a month. I've just never seen brakes go funny for no apparent reason. They have never been touched on my watch. But I will definitly be doing a thorough bleeding job.
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