4 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHFront Brake Pair Dragging
Leading reported evidence
Replace booster and so far
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
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Discussions that performed work without a confirmed outcome
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
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Leading evidence: 'Replace booster and so far' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Adjust nut' (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.
Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that performed work without a confirmed outcome
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Performed · outcome unconfirmed · Original poster
Thanks for the assist...I'm running the stock rubber lines.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
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Suggestion · Original poster
I didn't see an adjusting nut, but I'm guessing it's under the rubber boot.
Run (reinforced) rubber brake hoses or aftermarket braided ones
Suggestion or failed attempt
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
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Suggestion
Are you running (reinforced) rubber brake hoses or aftermarket braided ones?
Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.
4 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Rennlist: 1 discussions
0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.
1 acknowledgements have no verified action link; they do not establish a repair result.
Outcome without a verified action link
Finally fixed this problem, so figured I'd update:
2003 Targa Tip...both front calipers are dragging/sticking.
Noticed when driving, brake pedal got real hard and very sensitive. More than an inch or so of travel would lock the tires and skid - it also took quite a bit of accelerator to move.
Thought it was old fluid so completed a flush and it still does it.
What's
really
weird is it will do it when the engine is off as well. Car is up in the air, press the pedal and the two fronts barely spin.
The pedal does return to normal position, but if I pull up on it (there's maybe a millimeter of upward movement), it does the release the fronts (rears are fine).
From my searches, the 996 C2 doesn't have a proportioning valve, so no clue as to why only the fronts stick.
Any ideas? Thanks!
Are you running (reinforced) rubber brake hoses or aftermarket braided ones?
If the former then it could be that they're swollen towards the inside thereby reducing the cross section of the hose so much that they're basically acting like a oneway valve: you can push brake fluid through them by pressing the brake pedal but the fluid cannot flow back to the Reservoir once you release the brake pedal.
Other cause could be a faulty master cilinder or a pair of brake calipers that desperately need a rebuild.
ETA: having re-read your description I'd first check the master cilinder and its adjustment (between brake pedal and master cilinder pushrod) in particular.
Thanks for the assist...I'm running the stock rubber lines. They're not
that
old according to the service history, but I'm ordering some replacements anyway.
For the master cylinder pushrod, is that done on the MC itself or above the pedal? I didn't see an adjusting nut, but I'm guessing it's under the rubber boot. Also, is it common for it to become "unadjusted".
Thanks again!
Finally fixed this problem, so figured I'd update:
After replacing the rubber lines and MC (with what seemed 174 bleeds in between), problem was still present and actually got worse - all 4 wheels were dragging by the end and would get progressively worse as it heat up.
Pulling up on the pedal would release them...until finally even that wouldn't work anymore.
Replaced the booster and so far, so good! Brake pedal is back to it's normal springy self. It also seemed to fix a vac leak I was having as well, so I'm guessing the diaphragm was in pretty bad shape.
This is a source reference. Confirm exact model applicability in the original material.
