Notice: We request that you don't just set up a new account at this time if you are a previous user.
If you used to be one of our moderators, please feel free to reach out to Chris via the facebook Outerlimits4x4 group and he will get you set back up with access should he need you.
Recovery:If you cannot access your old email address and don't remember your password, please click here to log a change of email address so you can do a password reset.

uh oh, no brakes!

Tech Talk for Cruiser owners.

Moderators: toaddog, Elmo, DUDELUX

Forum rules
Post Reply
Posts: 106
Joined: Sat Apr 02, 2005 4:09 pm

uh oh, no brakes!

Post by --sinner-- »

well hello all. last night i was heading home from work, and pulled into a servo. afterwards when i went to drive off i noticed the BRAKE dash light was on, and the pedal is totally stiff. now, i dont have a manual so i cant read what that light signifies, so i was hoping one of you lads might be able to help me out, as far as i figure, maybe a blockage in the line?? or the booster crapped itself?

its a 84 diesel 4runner.

thanks all :D
Top
Posts: 101
Joined: Wed Feb 23, 2005 1:27 pm
Location: Nth.Brisbane Qld.

Post by NiftyNev »

Pump the brake pedal about half a dozen times with engine off, hold pedal in and start engine. The pedal should drop slightly as vacuum takes effect. If not then you have lost the vacuum assist.

Nev
'92 Toyota Surf LN130
2.4 Turbo Diesel
Top
Posts: 106
Joined: Sat Apr 02, 2005 4:09 pm

Post by --sinner-- »

and the vacuum assist is what exactly? it has something to do with the hose leading from the back of the alternater to the small cyl...which then goes into the booster?
Top
User avatar
lay80n
God Of Emo
Posts: 7350
Joined: Sun Aug 24, 2003 7:04 pm
Location: Newy, home of the ZOOK (Rockin the 'diff)

Contact:
Contact lay80n

Post by lay80n »

--sinner-- wrote:and the vacuum assist is what exactly? it has something to do with the hose leading from the back of the alternater to the small cyl...which then goes into the booster?
Vacum assist used engine vacum (or in diesels case alternator mounted vacum pump) to assist your pedal effort. If this has failed you pedal will feel very hard, and you wont stop well at all :D. With your motor running check that you have vacum at the line that attaches to the booster. if no vacum check if there is any at the vacum pump fitting. If there is vacum at the booster, you will most likley have internal problems.

Layto....
[quote="v840"]Just between me and you, I actually really dig the Megatwon, but if anyone asks, I'm going to shitcan it as much as possible! :D[/quote]
Top
Posts: 106
Joined: Sat Apr 02, 2005 4:09 pm

Post by --sinner-- »

checked it out, no vacuum at booster, and no vacuum at the pump fitting. so im guessing i need a new pump right?
Top
Posts: 2404
Joined: Fri Jul 07, 2006 9:00 pm
Location: Ipswich

Post by Sic Lux »

Yeah one would say so don't know if you can buy then new/reco you would think you could best bet call around :idea: best of luck
plenty of parts on the bench
Top
User avatar
RAY185
Resident Terrorist
Posts: 4278
Joined: Fri May 21, 2004 9:37 am
Location: Driving Barnsey's mum to bingo

Post by RAY185 »

speak to an auto electrician. They often have old units lying around still attached to old alternators that they have replaced. I picked up a 60 series one this way that works perfectly.
Top
Post Reply

Return to “Cruiser / Prado”

Who is online

Users browsing this forum: No registered users and 2 guests