Mike B Posted March 18, 2007 Share Posted March 18, 2007 Hi Everyone, Following of from the advice given last week about bleeding the brakes to remove the soft pedal feel, and the tips on bleeding the abs system (thanks everyone) I have been downloading manuals and poking around, but all is not what it appears to be... and I'm scratiching my head! The manual I have been comparing my car to is the manual Nic put on his site (thanks Nic) which a a us '94-96 LHD; my car is RHD VVTI '99. First question is; The manual tells me to bleed the TRAC system (traction control) as well as the main brake system. It gives diagrams but describes a traction control actuator and bleed valve.. I can't find this anywhere... has anyone seen it, or had experience of it? I was unaware that the trac control was connected to the brake system... thought that was more like stability control...? Second question is; Looking over the ABS unit there is no way to bleed it anywhere I can see, and absolutely no mention of bleeding it in the manual...? There is a motor, a block and six hydraulic connections (thought it should be 8, but there you go - maybe the backs are on the same link. So can the system be bled; there is no mention of bleeding abs in this us manual..!? is it necessary to do so? I'm sure there is air in it somewhere as with heat pedal feel gets really squishy, and this makes me think any water or air is expanding causing more squish... I have tried, (as the manual suggested) pumping and holding pressure on the brake with engine off, this proves that there is no leak and the master cylinder is fine, so I'm pretty sure the answer to my problems is in clearing and cleaning out the system... help from the experts needed! below is the section in the US manual that relates to bleeding brakes after air has gotten in the system somehow, and pics attached are the abs unit (I assume) on my car and the brake diagram from the manual; BLEEDING BRAKE SYSTEM BRAKE BLEEDING PROCEDURES CAUTION: DO NOT allow reservoir to run dry during brake bleeding procedure. Use only clean brake fluid. Ensure no dirt or other foreign matter contaminates brake fluid. DO NOT mix different brands of brake fluid, as they may not be compatible. DO NOT spill brake fluid on vehicle, as it may damage paint. If brake fluid contacts paint, immediately wash with water. 1) If master cylinder is rebuilt or reservoir is empty, bleed master cylinder first. Bleed remaining wheels starting on wheel with longest hydraulic line and work toward wheel with shortest hydraulic line. 2) Raise and support vehicle. Ensure brake fluid reservoir remains at least half full of brake fluid during bleeding procedure. Connect one end of transparent vinyl tube to bleeder plug. Submerge other end of tube in a container half filled with clean brake fluid. 3) Have an assistant depress brake pedal several times and hold in depressed position. Loosen bleeder plug and drain fluid into container. Tighten bleeder plug. NOTE: Ensure brake pedal remains depressed until bleeder plug is tightened. 4) Refill brake fluid reservoir as necessary. Repeat step 3) until air is no longer discharged. Tighten bleeder plug to 97 INCH lbs. (11 N.m). Ensure fluid leakage is not present. Add fluid to reservoir. Repeat procedure for remaining wheels. TRACTION CONTROL BLEEDING NOTE: On models with traction control, whenever the master cylinder and/or power booster is removed, the traction control system must be bled. 1) Ensure battery voltage is 10-14 volts. Disconnect electrical connector from traction control pump. Connect one end of Actuator Bleed Wire (09990-00330) to pump. Connect one end of a clear vinyl tube to bleed port on traction control actuator. Submerge other end of tube in a container half filled with clean brake fluid. 2) Loosen bleeder plug and start engine. Connect actuator bleed wire leads to battery and allow actuator pump to run for at least 60 seconds. Tighten bleeder plug. Allow traction pump to run for about 30 seconds. Check master cylinder fluid level. Reconnect traction pump electrical connector. Check for any ABS DTCs. refer to ANTI-LOCK BRAKE SYSTEM article.000001.doc Quote Link to comment Share on other sites More sharing options...
SimonB Posted March 18, 2007 Share Posted March 18, 2007 The trac system is only tied into the brakes on UK/US spec cars, so you don't need to worry about that as you have a Jspec. There's nothing in the ABS system to bleed either. Quote Link to comment Share on other sites More sharing options...
Mike B Posted March 19, 2007 Author Share Posted March 19, 2007 Thanks Simon, what is trac then? is it cruise control? or do uk and US spec cars have stability control? (traction control tied into the brakes?) I'm sure there is air in there somewhere... it does say bleed the master cylinder first, (which I have not done) so I may try that, then bleed the brakes out again... abs system must bleed out with the main lines then I guess..? how do you bleed the master cylinder, as there is no info on that..? Quote Link to comment Share on other sites More sharing options...
Ryan.G Posted March 19, 2007 Share Posted March 19, 2007 To bleed the abs system you need to have the engine turned on and try and keep the car level as possiable. 2 poster ramp is ideal Quote Link to comment Share on other sites More sharing options...
bodilx6 Posted September 24, 2009 Share Posted September 24, 2009 (edited) error post Edited September 24, 2009 by bodilx6 error post (see edit history) Quote Link to comment Share on other sites More sharing options...
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