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No brakes after a 360* turn
07-04-2018, 05:01 AM
Post: #1
No brakes after a 360* turn
Got a fun one Kickfix. After i turn a circle at very low speeds in a parking lot. When i press the brake pedal it shoots to the floor and while at the floor if i force it hard i get maybe 5% stopping power. Now when i take my foot off tbe brake. The pedal returns to the normal spot and if i press the brake again. All is normal. Meaning pedal is firm near top with 100% stopping power.. i dont understand this. You either have brakes or you dont. Depending on what fails in the system, and there is alot that can fail. They all have very spesfic symptoms. I cant think of anything that can cause this. And its very intermittent. Its happened 3 times in about 1000 miles of driving.

Now the full story

Kick has a 3" coil lift with 31" mud tires. No body lift. No vents or lines of any kind are streched in any way.. when i bought the kick the brake pedal would travel 60% before the rig would slow. Recently (right before my issue started) i raised the kick and put a pipe on the brake pedal and varying pressures and rotated the wheels to see what brakes were grabbing and what ones were not. Turns out the rears would not grab unless you really hit the pedal hard. This made sense to me being my e brake has to be yanked alllll the way up to do anything. So i remove the rear wheels and drums to adjust the brakes/ebrake. I notice the shoes are about 60% life left. (3mm or so) and the adjusters are all the way tight... so i cleaned and lubed them all up and moved to the cable adjustment at the e brake handle. As suspected the adjusting nut was loose. I tightned it untill there was a slight drag on both rear wheels. Then backed the nut off. Ebrake full engagement is at around 4 to 6 clicks now. And brake pedal feels great. All was swell until the intermittent no brakes thing started.

Fluid is clean and full. No pinched lines anywhere. All calipers are working as should. No leaks or rust on booster or vac line leaks. Im going to raise it up right now and remove all wheels to inspect but all i plan on acomplishing is wasting my time..
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07-04-2018, 05:50 AM
Post: #2
RE: No brakes after a 360* turn
bad MC.
shoot shoot to floor.
1: bad MC seals inside.
2: the last booster install , they didnt calibrate the rear of the MS rod so that it will not have free play at the rod and this blocks the return path for fluid (dangerous as hell to)
3: leaks, no you'd see leaks.
4; air in lines but , you either have air or not. its not a comes and goes thing.

my guess is MC end of life.

http://www.fixkick.com
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07-05-2018, 10:47 AM
Post: #3
RE: No brakes after a 360* turn
Ok here is my late/weird update. i raised the front and rotated both front wheels, left was free, right was stuck solid!! like how was this tiny 4cyl pushing a 3" lift with boggers and a stuck wheel WITH ac on! lol i just thought the a/c and hard top being on was what was holding it back., upon further investigation (ass uming bad brake hose) i found that the caliper was seized solid. verified by loosing bleeder on caliper and trying to push piston in. solid seized., this isnt abnormal to me being that the PO replaced the lf caliper a few years back, they usually go in pairs. so after this discovery i thought to myself... yea its stuck.. yes im replacing it right now. BUT knowing what i know.. a seized caliper has its own symptoms, non on wich are no brakes then brakes work. but i didnt see anything obvious , cut lines or anything leaking. i did check the MS shaft and to see if the pin fell out or if it was loose or leaking inside the car, nothing. after i replaced the caliper and bleed it. i decided to bleed the other front caliper while i was setup. who knows if po ever did it right? well i had the front off the ground, only the rf wheel was off so in order to access the front left bleed i needed to turn the wheel (and here we go.. are you ready??!!) as i turned the wheel to full cock i felt resistance near the end of the radius.. thought.. hmm thats odd. got out to look thinking im stretching brake hoses. NOPE the damn caliper(s) are pressing against my (ford ranger) front coil springs!!!!!!!!!!! so when the engine is running and PS is working.. the caliper against the coil spring is actually pushing the damn piston (s) back into the caliper!!!!!! i had issues with these damn coils rubbing the struts and making alot of noise, but never would have thought that would happen!!! looking for 3" coils now! arrgg! atleast now i know what causes it and that on the highway i wont be surprised with no brakes , only happens at full turn... well i doubt this will help anyone due to the unique cause.. but hey who knows..
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07-05-2018, 11:32 AM
Post: #4
RE: No brakes after a 360* turn
why not just do a full brake inspection, i best its got lots of problems.
it's old. and brake fluid is hydrascopic (dot 3/4) and captures water from the air, and all parts inside rust out. all metal.
best is to assume all PO's did nothing, it's brakes, we inspect and test it all. end to end.
are the caliper pins free, and it floats, this is first, and no rotor cracks.
no leaks.
and the rear adjusters and the cylindlers on there can seize just as easy. and the adjusters will rust too.

wow ford parts on suzuki, not fun that.

i bet nobody has this issue ever, the car is not stock now.
for sure anyone who can see it and look under and go wtf is that?

good luck with that,
you do know in fast turns you dont want the tires to flex and cause things to hit right? and the Dynamics of braking , and suspension dynamics.(at same time)
they must all play together,
if only off road, things are more forgiving (slow and tires can skid easy and safer) but not any fast highway.
good luck with that unique car.



(07-05-2018 10:47 AM)Rapom Wrote:  Ok here is my late/weird update. i raised the front and rotated both front wheels, left was free, right was stuck solid!! like how was this tiny 4cyl pushing a 3" lift with boggers and a stuck wheel WITH ac on! lol i just thought the a/c and hard top being on was what was holding it back., upon further investigation (ass uming bad brake hose) i found that the caliper was seized solid. verified by loosing bleeder on caliper and trying to push piston in. solid seized., this isnt abnormal to me being that the PO replaced the lf caliper a few years back, they usually go in pairs. so after this discovery i thought to myself... yea its stuck.. yes im replacing it right now. BUT knowing what i know.. a seized caliper has its own symptoms, non on wich are no brakes then brakes work. but i didnt see anything obvious , cut lines or anything leaking. i did check the MS shaft and to see if the pin fell out or if it was loose or leaking inside the car, nothing. after i replaced the caliper and bleed it. i decided to bleed the other front caliper while i was setup. who knows if po ever did it right? well i had the front off the ground, only the rf wheel was off so in order to access the front left bleed i needed to turn the wheel (and here we go.. are you ready??!!) as i turned the wheel to full cock i felt resistance near the end of the radius.. thought.. hmm thats odd. got out to look thinking im stretching brake hoses. NOPE the damn caliper(s) are pressing against my (ford ranger) front coil springs!!!!!!!!!!! so when the engine is running and PS is working.. the caliper against the coil spring is actually pushing the damn piston (s) back into the caliper!!!!!! i had issues with these damn coils rubbing the struts and making alot of noise, but never would have thought that would happen!!! looking for 3" coils now! arrgg! atleast now i know what causes it and that on the highway i wont be surprised with no brakes , only happens at full turn... well i doubt this will help anyone due to the unique cause.. but hey who knows..

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