UK Car

UK Car Repair Questions? Ask a Mechanic for Answers ASAP

Ask an Expert,
Get an Answer ASAP!

UK Car

I SEEM TO BE LOSING BRAKE FLUID FROM WHAT I BELIEVE IS THE

Customer Question
VACUUM PUMP SITUATED BEHIND THE...
I SEEM TO BE LOSING BRAKE FLUID FROM WHAT I BELIEVE IS THE VACUUM PUMP SITUATED BEHIND THE RADIATOR
1996 2.8 SHOGUN. ANY IDEAS
Submitted: 2 years ago.Category: UK Car
Show More
Show Less
Ask Your Own UK Car Question
Answered in 1 hour by:
9/24/2015
UK Auto Mechanic: Greg, Shop Owner replied 2 years ago
Greg
Greg, Shop Owner
Category: UK Car
Satisfied Customers: 7,156
Experience: 17 years Shop Owner /Technician. 27 years experience,
Verified

Hi .

Yes this is your brake master cylinder that has malfunctioned , the vacuum pump has sucked in the leaking fluid from the leaking master cylinder .

When you replace the master cylinder flush out the pump with water .leave this too long you will have to replace the pump .

Please remember to only rate my answer when you are 100% satisfied.

IF you feel the need to click either "Helped a little" or "I expected more",
please stop and reply to me via the CONTINUE CONVERSATION button with the issue you have.
I will be happy to continue further and do everything I can to provide you with the service you seek.

Kind regards Greg.

Ask Your Own UK Car Question
Customer reply replied 2 years ago
Hi Greg, how long is too long and can I get a rebuild kit for the master cylinder ?
UK Auto Mechanic: Greg, Shop Owner replied 2 years ago

Couple of weeks will damage the rubber seal in the system .

I would replace the master cylinder as the cylinder walls damage on these , but you may be lucky when you have the master cylinder out remove the piston set and check the cylinder walls for damage .

There are good repair kits that you can use ,

Rgds Greg

Ask Your Own UK Car Question
UK Auto Mechanic: Greg, Shop Owner replied 2 years ago

Let me know if you need further assistance with this issue .

Kind regards Greg

Ask Your Own UK Car Question
Customer reply replied 2 years ago
Hi Greg
I HAVE REMOVED THE MASTER CYLINDER AND VACUUM PUMP WHICH WAS FULL OF OIL. I HAVE 2 NEW SEALS FOR THE PUMP BUT CAN ONLY SEE WHERE 1 IS USED , DO I HAVE TO REMOVE THE BACK OF THE PUMP WHERE THE DRIVE COMES THROUGH, ALSO I AM PUZZLED BY THE PIPE THAT COMES FROM THE ENGINE BLOCK AND WOULD APPEAR TO FEED OIL INTO THE VACUUM PUMP . I ASSUME THAT THE VACUUM PUMP SHOULD BE DRY.
Customer reply replied 2 years ago
IF THE VACUUM PUMP HAS SUCKED IN THE FLUID FROM THE MASTER CYLINDER DOES THAT MEAN THAT THE FLUID HAS GOT INTO THE SERVO ??
Customer reply replied 2 years ago
FURTHER TO THE ABOVE THE ONLY CONNECTION FROM THE VACUUM PUMP TO THE BRAKING SYSTEM SEEMS TO BE AN AIR LINE TO THE SERVO
UK Auto Mechanic: Greg, Shop Owner replied 2 years ago

If the master cylinder is leaking fluid will get to the vacuum pump in most cases .like i said water will remove brake fluid don't use any chemicals .

There is a 10mm stopper bolt (# ***** 5 diagram) on the underside of the master cylinder this has to be removed to get the second piston out .

Rgds Greg

Ask Your Own UK Car Question
Customer reply replied 2 years ago
o.k i have taken off the back part of the pump and have found where the other o ring goes. The bearing will let engine oil through into the impeller chamber, is this correct ? I do not understand how brake fluid can get into the vacuum pump from the servo could you please explain ?
UK Auto Mechanic: Greg, Shop Owner replied 2 years ago

Okay the brake system is basically the same as a petrol vehicle only the vacuum the booster needs is from the

vacuum pump and not the intake manifold .

So if the master cylinder leaks the fluid ends up in the brake power booster and also gets sucked up into the pump .

Rgds Greg

Ask Your Own UK Car Question
Customer reply replied 2 years ago
Greg, when I removed the master cylinder it was totally dry at the joint with the vacuum booster and the vacuum booster has a seal around the plunger. I am beginning to think that the leak behind the rad is coming from the pressure relief unit which is mounted on the vacuum pump above the air intake connection, and that it may be engine oil and not brake fluid. Is that possible ?
UK Auto Mechanic: Greg, Shop Owner replied 2 years ago

Did you not say you was also losing brake Fluid ?

Engine oil is possible if the pump shaft seal fails on the pump itself .

Greg

Ask Your Own UK Car Question
UK Auto Mechanic: Greg, Shop Owner replied 2 years ago

Hi did you the last message .

Greg

Ask Your Own UK Car Question
Ask Greg Your Own Question
Greg
Greg
Greg, Shop Owner
Category: UK Car
Satisfied Customers: 7,156
7,156 Satisfied Customers
Experience: 17 years Shop Owner /Technician. 27 years experience,

Greg is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

RobinElkton, Maryland

He answered my question promptly and gave me accurate, detailed information. If all of your experts are half as good, you have a great thing going here.

DianeDallas, TX

< Previous | Next >

Meet the Experts:

Marty

Marty

European Car Expert

407 satisfied customers

ASE & Bosch Certified Master Tech. Over 30 years experience.

Greg

Greg

Shop Owner

7,156 satisfied customers

17 years Shop Owner /Technician. 27 years experience,

Richard

Richard

UK Car Mechanic

611 satisfied customers

12 years as a technician at a Ford and Jaguar dealer Ford and Jaguar factory certified

Matt

Matt

Mechanical Engineer

4,607 satisfied customers

BEng hons Mech engineering, in auto industry 22 years

Trevor

Trevor

UK Car Mechanic

853 satisfied customers

NVQ 3, Modern Apprenticeship, MOT Tester, 15+ years experience diagnostic technician

Rob

Rob

UK Car Mechanic

823 satisfied customers

city and guilds level 1 2and 3. mot tester , 28 years experience set up training college in afghanistan

martin jones

martin jones

UK Car Mechanic

640 satisfied customers

25 years as a mechanic and mot tester, owned own business for 10 years city and guilds trained

< Previous | Next >

Related UK Car Questions
When I turn my there's like a grinding sound and my abs
When I turn my there's like a grinding sound and my abs light is on. I'm thinking its the tone ring. … read more
fordguy4u
fordguy4u
Automotive Tech
Vocational, Technical or Trade Scho
70 satisfied customers
I am desperately trying to assist my sister. She has a VW
HI I am desperately trying to assist my sister. She has a VW Golf 2.0L FSI 09G Asin Warner 6 speed multi-wet plate clutch. Earlier this year she took her car to VW here in Johannesburg with a problem … read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
Do i oil the head bolts on a 2000 nissan 3.3 engine. I have
Do i oil the head bolts on a 2000 nissan 3.3 engine. I have the settings but not sure if i oil them or not… read more
Marty
Marty
European Car Expert
Associate Degree
407 satisfied customers
I have a 2005 Jazz and when I start it from cold I can't get
I have a 2005 Jazz and when I start it from cold I can't get it into gear, forward or reverse. But once the engine has warmed up it works as normal. … read more
Greg
Greg
Shop Owner
7,156 satisfied customers
I have just bought a second hand peugeot 206 cc, just taken
hi, i have just bought a second hand peugeot 206 cc, just taken it to an independant mechanic to check it over as i know nothing about engines!!! When hooked up to the diagnostics computer, it was com… read more
Robert
Robert
Mechanic/Roadside assist/Garage Owner
Vocational, Technical or Trade Scho
1,647 satisfied customers
Golf 4 1.4 16 v high negative STFT at idle after resetting
Golf 4 1.4 16 v high negative STFT at idle after resetting fault codes. (-19) Fault code 17573 p1165… read more
Eric
Eric
Retired
N/A
14,436 satisfied customers
The abs, stability control and traction control warning
The abs, stability control and traction control warning lights come on in my shogun. Usually it happens at start up or when moving off first thing in morning. After a Mile or so if I switch off and re… read more
Matt
Matt
Mechanical Engineer
Bachelor's Degree
4,607 satisfied customers
I have a p021 code on my 2008 g35 sedan. I need to know if
I have a p021 code on my 2008 g35 sedan. I need to know if bank 2 is drivers or passengers side? … read more
Greg
Greg
Shop Owner
7,156 satisfied customers
A have som problem fain. 300c crd yers 2006. 1270. power
hello JA: Hello. How can I help? Customer: a have som problem don fain JA: What is the model/year of your Chrysler? Customer: 300c crd yers 2006 JA: Are you fixing your 300C yourself? What have you tr… read more
fordguy4u
fordguy4u
Automotive Tech
Vocational, Technical or Trade Scho
70 satisfied customers
Ford kuga 2010 2.5 AWD malfuction just came up on the dash.
Ford kuga 2010 2.5 AWD malfuction just came up on the dash … read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
I have a new Mini S The onboard computer restarts itself
I have a new Mini Cooper S The onboard computer restarts itself whilst driving Have taken my car in to update software but this has not resolved the issue. Is this a common problem/one you have a fix … read more
Matt
Matt
Mechanical Engineer
Bachelor's Degree
4,607 satisfied customers
2006 Ford Transit Connect, the heater airflow control is
2006 Ford Transit Connect, the heater airflow control is jammed, can this be released simply? Do I need a tin opener to get to it? Regards Bran … read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
I am having starting problems with my 07 plate E320 D, it
Hi, I am having starting problems with my 07 plate E320 D, it takes about 3 or 4 heaters before it starts on relaly cold days, about 2 to 3 for mildly cold days, once started no probs, got it checked,… read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
I see a spanner comes on when I start d car and dis
I see a spanner comes on when I start d car and dis disappears within seconds … read more
Greg
Greg
Shop Owner
7,156 satisfied customers
Its not starting. Everythings fine i got error no connection
everythings fine i got error no connection ith sasm module here can i fint it? … read more
Matt
Matt
Mechanical Engineer
Bachelor's Degree
4,607 satisfied customers
I need wiring diagrams for Light Module for Laguna Coupe
I need wiring diagrams for Light Module for Laguna Coupe 2009 3.0 … read more
Matt
Matt
Mechanical Engineer
Bachelor's Degree
4,607 satisfied customers
Immobiliser seems to be draining the battery. Ticking noise
Ticking noise and lights flash when doors are open … read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
I am looking to change the battery on my Nissan prinastar.
I am looking to change the battery on my Nissan prinastar … read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x