Question about Toyota Cars & Trucks
2002 toyota 4 runner
755 (why drop the prefix?????) makes his 10x harder.
the FSM covers this , buy one or look online at alldata.com
the P0 COUNTS ! p means power-train, the 0 means federal std. code.
lets to TCM 101:
the TCM shifts this tranny,.
the TCM sends 12vdc to the solenoid to do SHIFTS.
the TCM checks the voltage at time of this command.
the voltage reads wrong, the TCM is not HAL2000, its just brick stupid
it only knows the test it did fail, and NEVER why
enter the technician and his FSM book and the steps to find it
the TCM can see solenoid faults 2 ways (at least)
voltage read back at the solenoid (the fsm is clear on this ,read it)
or RPM drop fail. VSS fails to drop or rise pre shift command.
each time the TCM shifts this tranny it looks at the TAIL RPM
and if wrong sets codes.
the FSM actual explains this. best.
now see actual FSM
Actual gear ratio and the Required gear ratio did not match during the CCM Rationality test.
see , unlike my first link (bad net bs)
the TCM does RATIONALITY tests.
that means it shifts and then looks at tail shaft RPM (VSS)
and sees rpm wrong. (tables of valid rpm in TCM)
at an up shift the RPM drop is checked. carefully. by the TCM.
and possible list. quite different.
in barstool lingo.
tranny slips in any gear. related to B solenoid.
by valve body, that includes the actual valve B sticking or dirty or clogged.
make sure the transmission ground strap is no missing or bad.
this IS MY FIRST CHECK on all A/T cars...
the transmission must be 100% perfectly grounded at all times.
or it WILL fail. (TCM fails()
Posted on Feb 19, 2014
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Posted on Jan 02, 2017
Diagram is unnecessry.
Pull both front wheels
Work one at a time leaving the other for reference
Find the retention spring ... its a paperclip thickness wire spring... dislodge center retention loop and undo from both ends which engage brake pad retention rods.
Pull the rods out
Pull the old pads out... laying everything on the ground
Use scrap wooden wedges to pry between the rotor and the caliper ...inside and out until the calipers are fully withdrawn. Use the new pads to measure if they are far enough back.
Note... the brake fluid will have dropped in the master cylinder over many months of wear... do not fill it. When the calipers are pushed back they will fill the reservoir again... one wheel at a time.
Be sure to identify the correct pad based on what you took out and what is on the other side (if you screwed up the layout)
Make sure to take the old antisqueek backing plate from the old pad and place it on the new pad. They don't use lubricant on these anymore.
Replace the pads... the retention rods... then the retention spring
Do the other side
Then progressively step on the brake peddle until full tension is felt
Check the master cylinder reservoir... probably needs no additional fluid.
New pads will register in existing ridges in each disc in no time at all.
You should check the discs to see if they need to be replaced during this operation...using some calipers
Posted on Mar 25, 2009
There is a heater core bypass pipe that runs from the block (under the manifold) to the bacl of theengine where you will see a flat rectangular "sheet metal" thing with a pipe coming out of it. The a rubber hose connects. You need to pull the top air plenums and intake to get to it. The p[ipe flange bolts to the block with silicone rtv as a sealant.
Posted on Nov 27, 2009
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