Jump to content

Brakes

Humbug

By Humbug
in Hilux Club

 Share

Recommended Posts

Humbug Member

Humbug

Posted
Posted

Evening. Have 5L diesel with vacuum pump on front of alternator.  Brakes are normal on first use. When pedal pressed second time,  it gets hard and brake light flash and go off. Bypassed a reservoir pot on fender and connected vacuum pipe straight to booster. Pedal and brakes are better but still get hard afterwards in traffic. Is it booster or vacuum pump that is faulty?

  • 2 weeks later...

CONROD Veteran

CONROD

Posted
Posted

To check if its the booster leaking or not holding vacuum, Have your foot OFF the brakes, shut it down, leave it 10- 15  minutes, go back and push your foot down on the brake pedal, you should get at least 3 good applications as per normal ( if the booster is not at fault ) then you should notice the pedal get harder and the stroke should reduce as the vacuum is depleted in the booster, after that whilst holding your foot on the pedal start the engine and the pedal should fall away as the vacuum is applied to the booster.

Given the age of your vehicle if its the original pump chances are the vanes are worn 

  • 3 weeks later...
Bigpete Proficient

Bigpete

Posted
Posted

Brake master cylinder R/S

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing



  • Join The Club

    Join the Toyota Owners Club and be part of the Community. It's FREE!

  • Latest Postings

    1. 18

      High idling on the 2zzge even when warm (solved!)

      i am in sydney, just got 1992 tarago, same problem, 2k idle speed when engine warm, changed the whole throttle body, ECU, still same, help pls in sydney 0405987988
      moxabest in Corolla / Corolla Sportivo Club
    2. 5

      High RPM Idle after the engine warm up.

      i have same problem, already changed throttle body, ecm modle, help pls
      moxabest in Inside and Out
    3. 0

      Tow bar

      Hi guys, Just bought my new Landcruiser Prado yesterday. What is the difference between Onroad Towner and Off road Towbar
      Kiru in Prado Club
    4. 3

      Disconnecting winch, lightbar and UHF

      Generally, yes. In the 60s, and earlier, there were cars with positive grounds, so I'm always a bit hesitant to say the negative wire. It is always the one that bolts to the body. Herb
      ozieagle in Landcruiser Club
    5. 0

      2011 Land Cruiser 1VD-FTV Engine Won't Start After Overhaul

      Hi everyone, I have a 2011 Land Cruiser VDJ200 with a 1VD-FTV engine. I recently had the engine fully overhauled due to a blown head gasket. However, after the overhaul, the engine is not starting. It only cranks but doesn't fire. I've checked the following DTC codes: Internal memory EEPROM error Low rail pressure The actual rail pressure data shows: 240 bar during cranking 61 bar when ignition is off Based on these findings, I suspect the following potential causes: =Defective Diesel High-Pressure Pump =Leaking Piezoelectric Injectors =Diesel Fuel Bypassing to the DPF Circuit =Faulty Injector Drivers I'm hoping for some expert advice to help diagnose and resolve this problem I'm seeking expert advice on how to troubleshoot and resolve this issue. Any suggestions or guidance would be greatly appreciated.
      kevin200 in Landcruiser Club
    6. 3

      Disconnecting winch, lightbar and UHF

      Okay this might be dumb but it the ground the negative?
      citrus__grove in Landcruiser Club
    7. 3

      Disconnecting winch, lightbar and UHF

      Disconnecting batteries, ALWAYS disconnect the ground wire first. Doing this will also disconnect power, in general. Herb
      ozieagle in Landcruiser Club
    8. 3

      Disconnecting winch, lightbar and UHF

      Hey guys, I’m wanting to disconnect my current winch, lightbar and UHF as I have new plans. I’ve installed a winch previously on another car so I get it’s a case of following the cables and disconnecting from the battery, etc but but safety wise, should I start by disconnecting the battery so the cables aren’t live orrrr? And if so how do it go this haha?
      citrus__grove in Landcruiser Club
    9. 1

      Snapping wheel and axle studs

      Put a set of standard wheels on it and your problem will disappear. It is critical that the hole in the wheel centre is a snug fit on the axle boss (without wheel nuts fitted). If your wheels are sloppy on the axle boss this allows excess force on your wheel studs and they will break, as yours are doing. If you are unsure of what to do, go to a reputable tyre shop and get assistance.
      32V8 in Landcruiser Club
    10. 0

      2zz idle / roughness when accelerating past 3k

      Hey everyone was hoping someone might be able to point me in the right direction with this issue I've been facing for a while now. My Celica's idle will drop down to almost 200rpm when stationery after hitting operating temperature. Pretty much feels like it's about to stall out but never actually does. When taking off from a set of lights it almost feels like it hesitates or is down on power and then all of a sudden it lurches forward and gets a boost in power again. Then again around 1,500-3,000rpm it feels down on power and in what I can only describe in the engine feeling scratchy. Past 3,000 rpm it gets a little boost in power again but still definitely feels down on power compared to what it used to be and still has that roughness. Note lift is also not working at the moment but I have changed the lift bolts, planning on cleaning the VVT and VVTL-i OCV's New engine mounts have been installed I changed the MAF sensor about 4 years ago albeit not OEM. After doing some research my main ideas now would be a New MAF this time OEM, TPS, IACV or Coil Packs (Changed plugs 50,000km ago) Any other suggestions would be greatly appreciated!!! :)
      ik04 in Celica Club
×
×
  • Create New...

Forums

News

Membership