replaced all 4 complete calipers,worked fine at first,more I drive drag present on 1992 Lexus LS400

after replacing brakes and bleeding car does fine,more I drive there's a drag on car,have to push accelerator harder to have it keep up the speed.And the engine is getting hot.Not the temp gauge,just excessive heat coming from motor into car. Also in AM car won't go when temp gauge in close to bottom of gauge,once it starts warming up makes it easier to go in gear(drive)this only started when what I thought was brakes locking on me,that was reason for replacement.When start in morn after temp warm up runs good,then slowly downhill from there,to the point afraid I'm pushing it to go that I'm going to break something if not get stuck somewhere. Please help!! I think it's a simple problem.Could the proportioning valve make the brakes do this?? Thanks .one heck of a headache

by in Orlando, FL on September 22, 2011
2 answers 2 comments
ANSWER by on September 22, 2011
may be a brake hose has failed on one or more wheels causing the brakes to stay applied. Roy
COMMENT by on September 22, 2011
when I bleed the system there is plenty of fluid coming from lines. Do you have another suggestion??
COMMENT by on September 22, 2011
does not mean that the hose is good. the fluid becomes trapped because it cannot flow back to the master. Roy
ANSWER by on September 22, 2011
Jsck up the car and see if any or which brake is dragging. The e/brake is within the rear brake disc could the e/brake cable no be releasing of the e/brake shoe return springs have an issue? Was the master cylinder replaced? Push rod lenght at the booster is critical. There is a company that independent auto repair shops get their information from, this same information is available inexpensively for people that work on their own cars.. The information is year make and model specific, covering repair procedures, torque specifications, fluid capacities and specifications, service bulletins, component locations, wiring diagrams ect.... Alldata is very easy to navigate http://bit.ly/AllData_Repair_Manuals_Online