dragging brake and spongy brake pedal

[orly_andico]

one of the front brakes on my 626 has been dragging for quite some time now. not enough that "nabibigatan" yung car (it can still coast quite a distance) but enough to produce an annoying sound and the wheel rim gets pretty hot!

also, the brake pedal needs more travel now before the brakes bite (normally mga 1" lang of travel kagat na, ngayon mga 2" which is almost halfway to the floor). pero minsan nagiging normal ulit yung brake (1" travel only needed, tapos matigas na matigas na siya pag nag-bottom out).

i thought kailangan na palitan brake pads and i-bleed, so iniwan ko sa isang shop yesterday (since coding day ko yun). well.. they said may leak daw yung isang caliper, that's IN ADDITION to the dragging caliper. sabi nila both have to be overhauled or replaced.

problem is.. they want to replace the caliper pistons as well. which are expensive. that's in addition to the seal kit (yung mga rubber gaskets). i really want to get a 2nd opinion kasi yung total quote nila for repair kit + piston is 5000 na per caliper. sobrang mahal. plus labor pa yun.

a new brake caliper is 8500 (mas mahal! lalo na if i end up replacing both front calipers).

di pa (naman) impaired yung braking. medyo nakakagulat lang pag biglang lumambot kasi sanay na ako sa 1" travel, kagat na yung brakes, tapos biglang 1" travel doesn't work, kailangan pang diinan yung brake para kumagat.

i was wondering how to verify yung sinasabi nilang leak on the caliper. baka kasi hose lang yun.

[sirkosero]

mahal nga ata yan mga parts na yan.... casa ba yan? sobra ata... try mo maghanap ng ibang shops at dun ka pa-canvass. i agree dun sa overhaul pero dun sa palit ng pistons medyo hindi... pati alangan ako dun sa shop na sinabi mo kasi dapat nung first sign pa lang, alam na nila na sira ang brakes mo at di na nila ipapa-bleed yun kasi repair na talaga kailangan dun. kaya mukhang pineperahan ka na nyang mga yan...

kapag nagiging spongy, or malambot yung preno na hindi kumakagat ang preno, that means may hangin sa brake system mo. hangin is caused by a leak somewhere. to check kung hoses lang din ang sira, remove the front wheels and check the hoses going to the caliper kung basa. also, look for signs of wear and tear sa hose

IMHO, any brake problems sa car should be dealt with as soon as possible. its no use that ur car will move if at any given moment your brakes would fail you.

my suggestion: get a good mechanic or a good shop and have your brakes fixed as soon as possible. IMHO lang po

[theveed]

Hmm other than that, kutob ko may problem ka sa hydrovac, pacheck mo din yun...

[orly_andico]

sir sirkosero,
yung 8500 na caliper price, banawe na yun!
15000 daw yun sa casa, each.

i agree about the pistons, bihira naman daw nadadale yun. dapat seals lang.
i was the one who asked the shop to bleed the brakes kasi nga spongy. and ang ingay nung front brakes, akala ko gumagasgas na sa bakal yung pads. turns out makapal pa daw.

david,
i don't think the brake booster has a problem, kasi lumalambot pa rin yung brake when turning on the engine.

[banaweonline]

one of the front brakes on my 626 has been dragging for quite some time now. not enough that "nabibigatan" yung car (it can still coast quite a distance) but enough to produce an annoying sound and the wheel rim gets pretty hot!

--sir orly, dragging is the result of warped brake rotors. you can feel the pedal goes up and down (shuddering) while applying the brakes. only a machine shop can reface it and bring it back to normal (unless it is beyond specs, you have to change it). when the wheel rims gets abnormally hot, the problem is your caliper is stuck up. this will warp your rotor because the temp in hotter than normal. you have to overhaul the calipers, change the brake pads, and inspect the hub bearings. overheating will cause the grease to melt and makes the lubricity usless...

also, the brake pedal needs more travel now before the brakes bite (normally mga 1" lang of travel kagat na, ngayon mga 2" which is almost halfway to the floor). pero minsan nagiging normal ulit yung brake (1" travel only needed, tapos matigas na matigas na siya pag nag-bottom out).

--have your brake master checked after you have the calipers and brake pads replaced. eliminate the problems first before spending. mahal parts ng 626. pag matigas na pag nag bottom out, it means na sagad na ang play ng brake master mo. hanggang dun na lang...
under normal braking, di naman siya matigas apakan na parang bato?

i thought kailangan na palitan brake pads and i-bleed, so iniwan ko sa isang shop yesterday (since coding day ko yun). well.. they said may leak daw yung isang caliper, that's IN ADDITION to the dragging caliper. sabi nila both have to be overhauled or replaced.
problem is.. they want to replace the caliper pistons as well. which are expensive. that's in addition to the seal kit (yung mga rubber gaskets). i really want to get a 2nd opinion kasi yung total quote nila for repair kit + piston is 5000 na per caliper. sobrang mahal. plus labor pa yun.

--calipers are usually overhauled by replacing the caliper kit. unless the pistons have severe rust damage to it (parang bulutong). otherwise, its not necessary to replace the pistons and caliper assy.

hope this helps...

[orly_andico]

dragging is the result of warped brake rotors. you can feel the pedal goes up and down (shuddering) while applying the brakes. only a machine shop can reface it and bring it back to normal (unless it is beyond specs, you have to change it).

hi, thanks for the info. i assume the shop i sent the car to yesterday checked the rotors. wala naman akong na-fe-feel na oscillation of the brake pedal. anyway refacing is cheap so ok lang yun..

when the wheel rims gets abnormally hot, the problem is your caliper is stuck up. this will warp your rotor because the temp in hotter than normal. you have to overhaul the calipers, change the brake pads, and inspect the hub bearings. overheating will cause the grease to melt and makes the lubricity usless...

thanks!! now this is more useful information
actually hindi pa ganun ka-init yung rim. not like that time na-stuck yung handbrake, lutong-itlog yung init nung rim nun. the heat ngayon is above normal, but not horribly so.

have your brake master checked after you have the calipers and brake pads replaced. eliminate the problems first before spending. mahal parts ng 626. pag matigas na pag nag bottom out, it means na sagad na ang play ng brake master mo. hanggang dun na lang...
under normal braking, di naman siya matigas apakan na parang bato?

when i said "bottom out," i meant sumasagad na yung brake pedal around 2" down from the top. hindi siya umaabot ng floor.

normally, konting press lang sa brake pedal (about 1" depression) ramdam na yung kagat ng brake. pero minsan (actually becoming more and more common...) mga 2" down ang kailangan para kumagat yung brake. this part is what worries me (baka sa sunod, sa sahig na yung pedal, tapos mawalan tuluyan ng brake).

calipers are usually overhauled by replacing the caliper kit. unless the pistons have severe rust damage to it (parang bulutong). otherwise, its not necessary to replace the pistons and caliper assy.

hope this helps...

tenk you, tenk you!
this is the information i need.

so i'll go to banawe and have the brake system checked again. if the shop in banawe also determines na leaky caliper, ipa-overhaul ko nalang sa kanila. i'm not going back to that shop in taguig anymore :P (pumunta lang ako dun kasi sa taguig na ako nakatira, and it's like 2 blocks from home). back to old reliable sprint auto supply.

[orly_andico]

update: went to sprint in banawe.
they cleaned the dragging caliper. nothing was replaced.
pagbalik nung caliper, stuck-up pa rin!!!
so they bled the brakes. OK na siya. went home.

trouble was, after ~2 hours of driving, tumitigas na naman yung brake pedal and stuck na naman yung caliper. di na ako nakabalik. basically when just starting out, the brakes are OK. but eventually (after say an hour..) BOTH front calipers get stuck. at which point, the brake pedal only takes a TINY tap to get full braking power.

it's not brake booster (i think) kasi di naman matigas yung brake pedal. matigas siya because bottomed out na siya (even though halos walang apak..)

[banaweonline]

update: went to sprint in banawe.
they cleaned the dragging caliper. nothing was replaced.
pagbalik nung caliper, stuck-up pa rin!!!
so they bled the brakes. OK na siya. went home.

trouble was, after ~2 hours of driving, tumitigas na naman yung brake pedal and stuck na naman yung caliper. di na ako nakabalik. basically when just starting out, the brakes are OK. but eventually (after say an hour..) BOTH front calipers get stuck. at which point, the brake pedal only takes a TINY tap to get full braking power.

it's not brake booster (i think) kasi di naman matigas yung brake pedal. matigas siya because bottomed out na siya (even though halos walang apak..)

try checking the brake master...
or maybe one of the shops adjusted too much the push rod of the brake master. check also...

[orly_andico]

went back to banawe yesterday. they tried their clutch fix again. was ok. drove around. after 8km, problem was back. went back to sprint. they tried adjusting the brake pedal pushrod. was ok. drove around. after 8km, problem was back! sprint gave up (they didn't charge me anything) and recommended i take the car to the casa. which i did (kia pasay). now i wonder how much they'll skin me for...

[banaweonline]

went back to banawe yesterday. they tried their clutch fix again. was ok. drove around. after 8km, problem was back. went back to sprint. they tried adjusting the brake pedal pushrod. was ok. drove around. after 8km, problem was back! sprint gave up (they didn't charge me anything) and recommended i take the car to the casa. which i did (kia pasay). now i wonder how much they'll skin me for...

this is strange...
di naman abs brakes mo...
bka naman there is something wrong with the brake pads...?

[orly_andico]

yeah, i thought of the abs. baka natakot.. anyway kia claims o-ring replacement lang daw. di nila ma-road test kasi coding ngayon.

[niky]

Will kia pasay be able to work on my sensor probs, orly? I'm thinking of having everything fixed after we register the car. Anhirap kasi, the office keeps borrowing our new vehicles and I'd much rather they get scratches on the 626 than on my RS. :lol:

[orly_andico]

i guess... sila ang official casa ng protegetech eh
they have a large PT banner, and there were at least 3 protege's and 1 miata with huge PT stickers on their bumpers there when i visited.
expect casa pricing on the parts though... :P those sensors are damn expensive.

[niky]

eep! Will see when I can go. Maybe by next month.

[theveed]

OT: Niky: alam mo, all the while I thought the car on your sig was a F150 hehe

[niky]

OT: Niky: alam mo, all the while I thought the car on your sig was a F150 hehe

LOL! I wish I could afford the gas!

At least Ford pa rin siya...

[orly_andico]

on an unrelated topic, napadaan ako dun sa ford dealership along alabang-zapote road. maraming billboards sa labas flogging their wares. what got my attention was the "80k payment all-in LTO registration" scheme for the 2.0L escape. this is interesting because nissan's amazing "20k downpayment scheme" actually is a cash-out of 78k (the 58k goes to LTO, insurance, etc.) ganun ba ka un-appealing ang 2.0L escape? (incidentally masaya na 'ko dun.. sana..)

[niky]

Actually, okay lang naman ang Escape 2.0, but the engine is uderpowered and guzzly for the size of the vehicle, especially since it's only sold in AT (same situation as the CRV 2.0 AT). If it were MT, it'd be just fine.

[wulf]

had that same problem recently.after bleeding,cleaning & what-have-yous, we finally replaced the brake master. problem solved. surplus lang though, 3100 for my exalta 2000 (orig is 9500+ up, banawe price).probably more expensive for your 626

[orly_andico]

that's the funny thing. after almost a week %$^%$!! at the casa, they come back and tell me na brake master kailangan palitan. :P

although the initial estimate was 4000+ "lang" daw yung brake master, medyo duda ako dun. kasi 3800 yung *clutch* master (nagpalit ako recently). i guess all the hydraulics was on the way out. since casa yun, walang surplus or replacement.