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Losing pressure at clutch pedal

Tiny
TURNER199
  • MEMBER
  • 2016 VOLVO S80
  • 2.2L
  • 5 CYL
  • 2WD
  • MANUAL
  • 90,000 MILES
Pump a few times and okay for a few miles then drops to floor and have to lift and pump again. No loss of clutch fluid. Could it be an air leak or does slave cylinder need replacing inside gear box?
Saturday, September 14th, 2019 AT 7:41 AM

4 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,747 POSTS
Welcome to 2CarPros.

It could be the slave or the clutch master cylinder. I have to be honest, leaks are the most common reasons for the slave to fail. On the master cylinder, the plunger may be failing and allowing fluid to bypass and require you to pump the clutch pedal.

Since the fluid is full, my first suspect is the clutch master cylinder. However, you may want to try bleeding the system first to make sure that is the issue.

Is the year you listed correct?

Let me know.

Joe
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Saturday, September 14th, 2019 AT 8:29 PM
Tiny
JIS001
  • MECHANIC
  • 3,411 POSTS
Hello and welcome to 2CarPros. As JACOBANDNICKOLAS stated, is this the correct vehicle? In the USA market there is no manual transmission S80.00 that I know of? Can you provide a VIN # in a private message to profile the vehicle?
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Sunday, September 15th, 2019 AT 10:20 PM
Tiny
TURNER199
  • MEMBER
  • 1 POST
Didn’t realize I was dealing with USA, yes manual, just leave it
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Tuesday, September 24th, 2019 AT 8:32 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,747 POSTS
Not a problem. Let me know if you do need help. The clutch hydraulics are very similar on most vehicles.
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Wednesday, September 25th, 2019 AT 4:58 PM

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