Where did my fluid go????

Wolf Spyder · 10-08-2009

I'm at Crusin' the Coast every thing is AWSOME! the car is runnig great but when I did my normal morning check before getting on the road to the event of the day I noticed that almost all my brake fluid was gone

not a good thing in heavy traffic with many other high dollar cars around. Checked all 4 wheels and could not find any signs of a fulid leak. Filled up the plastic container and hit the road. Went about 40 miles and parked for the show of the day. Over 2000 cars! Got ready to leave and checked the status and it was down about 1/4. No obvious leaks. Filled it up and drove 20 miles and it was down some more.

Where is the fluid going?????

jlthunder · 10-08-2009

It could be leaking into your brake booster. I've heard of this happening to others.

dallasmanta · 10-08-2009

chances are that your booster is the place the fluid is leaking into. Sometimes the master cylinder will allow fluid to leak into the Booster cavity. This is usually caused by the rubber cups inside the MC starting to leak. You can check this by removing the MC and the rubber cup behind it and looking into the booster. Ron

opelnut10 · 10-08-2009

Originally Posted by dallasmanta

chances are that your booster is the place the fluid is leaking into. Sometimes the master cylinder will allow fluid to leak into the Booster cavity. This is usually caused by the rubber cups inside the MC starting to leak. You can check this by removing the MC and the rubber cup behind it and looking into the booster. Ron

It is not required to remove the master cylinder just to check for leaking into the booster. Simply take out the hose connection from the master cylinder and insert something flexably (I use a piece paper towel taped to a coat hanger) run it down the hole until you feel it touch the bottm of the booster. Pull it out and see how far up the paper towel is wet with fluid, and you can go from there. If you are losing fluid and no calipers, wheel cylinders or the master cylinder is leaking then I agree it is going in the booster.

Strider1970 · 10-08-2009

There is a rubber hose in front of the rear diff. I discovered while bleeding my brakes that my GT was leaking there. OGTS has this hose in stock. HTH
Shawn

tcav · 10-08-2009

Im haveing the same problem right now.It is time for you to re-build or replace your master cyl.Rock auto has mine right now for re-build..cost $58.00. also at this time you should re-do the rubber in your booster since it has been exposed and saturated with brake fluid.I have no info on who re-builds the booster since I was lucky enough to have one of my Texas Opel member give me a booster that was in NEW condition.Good luck.
Also orderd all new gasket and seals.(M/C to boost,reservoir to M/C/ plus several more from OGTS at a cost of $28.00.
Tom

10-08-2009	#1 (permalink)
Wolf Spyder Member Join Date: May 2004 Location: Mississippi Posts: 412	Answered: Where did my fluid go???? I'm at Crusin' the Coast every thing is AWSOME! the car is runnig great but when I did my normal morning check before getting on the road to the event of the day I noticed that almost all my brake fluid was gone not a good thing in heavy traffic with many other high dollar cars around. Checked all 4 wheels and could not find any signs of a fulid leak. Filled up the plastic container and hit the road. Went about 40 miles and parked for the show of the day. Over 2000 cars! Got ready to leave and checked the status and it was down about 1/4. No obvious leaks. Filled it up and drove 20 miles and it was down some more. Where is the fluid going????? __________________ LIFE IS NOT A JOURNEY TO The GRAVE WITH THE INTENTION OF ARRIVING SAFELY IN A PRETTY AND WELL-PRESERVED BODY, BUT RATHER TO SKID IN BROADSIDE, THOROUGHLY USED UP, TOTALLY WORN OUT, AND LOUDLY PROCLAIMING... "WOW! WHAT A RIDE!" Last edited by Wolf Spyder; 10-08-2009 at 09:23 AM. Reason: syntax

10-08-2009	#2 (permalink)
jlthunder 1000 Post Club Join Date: May 2003 Location: Salfordville, PA Posts: 2,143 Real Name: Jeff	It could be leaking into your brake booster. I've heard of this happening to others. __________________ 1972 Opel GT, Owner since 1983 2001 Saab 9-5 SE 3.0 Turbo V6 Weeeeeeeeeee!!! 1973 GT, Parted out, R.I.P. 1968 Kadette, Owner since 2006, Sold, 28 June 2008

10-08-2009	#5 (permalink)
Strider1970 Opeler Join Date: Feb 2005 Location: Las Vegas, NV. Posts: 50	Another possibility There is a rubber hose in front of the rear diff. I discovered while bleeding my brakes that my GT was leaking there. OGTS has this hose in stock. HTH Shawn

10-08-2009	#6 (permalink)
tcav intx73gt Join Date: Feb 2009 Location: livingston tx Posts: 36 Logbook Entries: 1 Real Name: tom kaye	master cyl. Im haveing the same problem right now.It is time for you to re-build or replace your master cyl.Rock auto has mine right now for re-build..cost $58.00. also at this time you should re-do the rubber in your booster since it has been exposed and saturated with brake fluid.I have no info on who re-builds the booster since I was lucky enough to have one of my Texas Opel member give me a booster that was in NEW condition.Good luck. Also orderd all new gasket and seals.(M/C to boost,reservoir to M/C/ plus several more from OGTS at a cost of $28.00. Tom

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10-08-2009	#3 (permalink)
dallasmanta Dallasmanta Join Date: Feb 2003 Location: dallas texas Posts: 189 Real Name: Ron	chances are that your booster is the place the fluid is leaking into. Sometimes the master cylinder will allow fluid to leak into the Booster cavity. This is usually caused by the rubber cups inside the MC starting to leak. You can check this by removing the MC and the rubber cup behind it and looking into the booster. Ron

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