hirap above 120kmh.

[kicks4us24]

hey guys, ask ko lang ano ba symptoms ng kotse. kaya nya makaabot ng 120kmh pero above that di na kaya parang hirap na makina. pero nasa 2500 rpm na yun. lahat ng spark plugs bago and battery, O2 sensor and Air Fuel sensor ok naman. New ATF fluid din dialysis. ano ba mga di pa na check? wala naman problema sa standstill acceleration mabilis talaga mag respond. gear shifting ok naman. 120kmh is enough pero gusto ko malaman bakit di sya makaabot more than 120kmh + ? Automatic Transmission po. thanks..

[ghosthunter]

what car, model and engine?

what mods were done to the car/engine?

what are the last few repairs done to the car?

[kicks4us24]

hello sir ghost hunter

Car is a Rav4 Gen2 all wheel drive. 2.0Liter Engine no mods where done and all stock.

everything is all replaced like the spark plugs, air filter, O2 Sensor, engine tune up. bnew set of tires.

at saka nga pala, nag vivibrate ang kotse ko at 120km/h na, do you think its the wheel alignment? thanks

[airolynx]

Vibration at high speeds can be caused by alot of factors. But you should check your suspension if it needs repairs. Have your tie rod, rack end, ball joints, bushings, and stabilizers checked. You have brand new tires so I assume that they were balanced. Otherwise, have them balanced.

Regarding your acceleration post 120kmh, have you tried flooring the gas pedal? You may also try flooring the gas while your shifter is at D3, or OverDrive off. That way, the car will be able to rev much higher before switching to the overdrive 4th gear. Once you reach past 120kmh, switch on your OverDrive or put it in 'D' if there's no Overdrive button. Switch off your A/C before trying any of these.

hope this helps.

[shadow]

Vibration at high speeds can be caused by alot of factors. But you should check your suspension if it needs repairs. Have your tie rod, rack end, ball joints, bushings, and stabilizers checked. You have brand new tires so I assume that they were balanced. Otherwise, have them balanced.

Regarding your acceleration post 120kmh, have you tried flooring the gas pedal? You may also try flooring the gas while your shifter is at D3, or OverDrive off. That way, the car will be able to rev much higher before switching to the overdrive 4th gear. Once you reach past 120kmh, switch on your OverDrive or put it in 'D' if there's no Overdrive button. Switch off your A/C before trying any of these.

hope this helps.

why do you need to switch on and off pa the overdrive eh if you need to down shift you can just step on the pedal.

[airolynx]

why do you need to switch on and off pa the overdrive eh if you need to down shift you can just step on the pedal.

Hmmm pwede rin... dun lang siguro ako nasanay sir Shadow hehehe.

TS, yeah pag ni-floor mo yung gas pedal, mag ddownshift mag isa pala yan.

[kicks4us24]

Vibration at high speeds can be caused by alot of factors. But you should check your suspension if it needs repairs. Have your tie rod, rack end, ball joints, bushings, and stabilizers checked. You have brand new tires so I assume that they were balanced. Otherwise, have them balanced.

Regarding your acceleration post 120kmh, have you tried flooring the gas pedal? You may also try flooring the gas while your shifter is at D3, or OverDrive off. That way, the car will be able to rev much higher before switching to the overdrive 4th gear. Once you reach past 120kmh, switch on your OverDrive or put it in 'D' if there's no Overdrive button. Switch off your A/C before trying any of these.

hope this helps.

sir thanks for the informative response!

all suspensions parts are bnew ( tie rod, rack end, ball joints, bushings, and stabilizers )
and the new set of tires. the shop doesnt have a wheel alignment. so probably this vibration causes the problem at 120kmh. I Havent Floor the Gas pedal yet. i think it can go more than 120 but when this vibration occurs (at 110 - 120kmh) Im afraid to floor the gas pedal because the vibration increases eh. ramdam ko sa steering wheel yun nasa SCTEX ako.

siguro Ill have wheel alignment muna? then after that pag nawala yun Ill try to hit it more than 120.

yes there is overdrive button. ginagamit ko ito sa overtaking. sige ill try it

[airolynx]

sir thanks for the informative response!

all suspensions parts are bnew ( tie rod, rack end, ball joints, bushings, and stabilizers )
and the new set of tires. the shop doesnt have a wheel alignment. so probably this vibration causes the problem at 120kmh. I Havent Floor the Gas pedal yet. i think it can go more than 120 but when this vibration occurs (at 110 - 120kmh) Im afraid to floor the gas pedal because the vibration increases eh. ramdam ko sa steering wheel yun nasa SCTEX ako.

siguro Ill have wheel alignment muna? then after that pag nawala yun Ill try to hit it more than 120.

yes there is overdrive button. ginagamit ko ito sa overtaking. sige ill try it

Most likely. yeah pa align mo sir. Sayang yung new tires. Hehehehe. Pag di parin nawala, try swapping your front tires with your rear tires. tapos nun, hataw na! :D

[kicks4us24]

*airolynx

you solved my problem haha!
napa wheel balancing and alignment ko na all 4 tires and the rotation. they put this parang metal pieces na nilalagay sa likod ng rim para maging 0.0 - 0.0 ang reading. kay Carzone banawe ako kanina 3pm good service naman.

after that punta ako NLEX balitawak to bocaue balikan. excited ako ma-test. no passengers and no aircon. yes hinataw ko na sir kanina ayos wala ng vibration at 120km+ i was able to reach 145km kanina kasi medyo maraming kotse sa overtaking lane rush hour kasi around 5pm kaya di ko na mahirit pa nakakatakot baka mabanga ako

yes i did floor the gas pedal and tried the OD off rev upto 3000rpm and switch to OD ON. it downshifted automatically at 130kmh (from 3000 to around 2000rpm) as what you said. then smooth sail to 145kmh. i didnt know kasi na may susunod na downshift pa pala. i thought hirap ang makina. nasa vibration pala ng gulong ang problem nerbyos ako talaga kanina when doing this. but it was worth it naman.

thank you master

[desert fox]

Nice, me natulungan na naman ang tsikot!!!!

:soccer2:

[airolynx]

*airolynx

you solved my problem haha!
napa wheel balancing and alignment ko na all 4 tires and the rotation. they put this parang metal pieces na nilalagay sa likod ng rim para maging 0.0 - 0.0 ang reading. kay Carzone banawe ako kanina 3pm good service naman.

after that punta ako NLEX balitawak to bocaue balikan. excited ako ma-test. no passengers and no aircon. yes hinataw ko na sir kanina ayos wala ng vibration at 120km+ i was able to reach 145km kanina kasi medyo maraming kotse sa overtaking lane rush hour kasi around 5pm kaya di ko na mahirit pa nakakatakot baka mabanga ako

yes i did floor the gas pedal and tried the OD off rev upto 3000rpm and switch to OD ON. it downshifted automatically at 130kmh (from 3000 to around 2000rpm) as what you said. then smooth sail to 145kmh. i didnt know kasi na may susunod na downshift pa pala. i thought hirap ang makina. nasa vibration pala ng gulong ang problem nerbyos ako talaga kanina when doing this. but it was worth it naman.

thank you master

That's good to hear! Congratulations! Enjoy your ride sir. Happy to be of service. Kaso ingat lang sa pag hataw sa NLEX baka ma timingan ka nung mga may radar. They catch overspeeders kapag lumampas ka ng 115km/h.

[airolynx]

Nice, me natulungan na naman ang tsikot!!!!

:soccer2:

Hehehe... yeah maganda talaga ang forum na to. Very helpful.

[shadow]

*airolynx

you solved my problem haha!
napa wheel balancing and alignment ko na all 4 tires and the rotation. they put this parang metal pieces na nilalagay sa likod ng rim para maging 0.0 - 0.0 ang reading. kay Carzone banawe ako kanina 3pm good service naman.

after that punta ako NLEX balitawak to bocaue balikan. excited ako ma-test. no passengers and no aircon. yes hinataw ko na sir kanina ayos wala ng vibration at 120km+ i was able to reach 145km kanina kasi medyo maraming kotse sa overtaking lane rush hour kasi around 5pm kaya di ko na mahirit pa nakakatakot baka mabanga ako

yes i did floor the gas pedal and tried the OD off rev upto 3000rpm and switch to OD ON. it downshifted automatically at 130kmh (from 3000 to around 2000rpm) as what you said. then smooth sail to 145kmh. i didnt know kasi na may susunod na downshift pa pala. i thought hirap ang makina. nasa vibration pala ng gulong ang problem nerbyos ako talaga kanina when doing this. but it was worth it naman.

thank you master

huwag mo na pakialaman yun overdrive button just put it on "ON", if you need to downshift like pag mag overtake ka at bitin, just step on the gas, automatic ma detect ng kotse na you need the push and mag downshift yan. kaya nga A/T na eh para hinde na pakialam ng kamay mo yun kambyo.

[airolynx]

huwag mo na pakialaman yun overdrive button just put it on "ON", if you need to downshift like pag mag overtake ka at bitin, just step on the gas, automatic ma detect ng kotse na you need the push and mag downshift yan. kaya nga A/T na eh para hinde na pakialam ng kamay mo yun kambyo.

Thanks for the input sir shadow, I'm just wondering now, kelan appropriate i-off yung OD?

[kicks4us24]

yun nga eh naisip ko baka mahuli ako. i did this when the fast lane is clear and the car in front of me was far enough so that I can able to floor it.

ang dami ko na-save na pera dahil nga sa forum na ito.

[shadow]

if you don't need to shift into the highest gear? which is never...I don't know. you have the low gears naman for a steep climb.

[airolynx]

if you don't need to shift into the highest gear? which is never...I don't know. you have the low gears naman for a steep climb.

I see. Just a guess, maybe ok gamitin yung O/D off kapag naiilang pa to 'floor' the gas pedal to downshift. Usually mga ex-manual users. Like me. :D hehehe

[Ry_Tower]

*airolynx

you solved my problem haha!
napa wheel balancing and alignment ko na all 4 tires and the rotation. they put this parang metal pieces na nilalagay sa likod ng rim para maging 0.0 - 0.0 ang reading. kay Carzone banawe ako kanina 3pm good service naman.

after that punta ako NLEX balitawak to bocaue balikan. excited ako ma-test. no passengers and no aircon. yes hinataw ko na sir kanina ayos wala ng vibration at 120km+ i was able to reach 145km kanina kasi medyo maraming kotse sa overtaking lane rush hour kasi around 5pm kaya di ko na mahirit pa nakakatakot baka mabanga ako

yes i did floor the gas pedal and tried the OD off rev upto 3000rpm and switch to OD ON. it downshifted automatically at 130kmh (from 3000 to around 2000rpm) as what you said. then smooth sail to 145kmh. i didnt know kasi na may susunod na downshift pa pala. i thought hirap ang makina. nasa vibration pala ng gulong ang problem nerbyos ako talaga kanina when doing this. but it was worth it naman.

thank you master

Good news indeed and great reco kay sir airolynx!

[Ry_Tower]

I see. Just a guess, maybe ok gamitin yung O/D off kapag naiilang pa to 'floor' the gas pedal to downshift. Usually mga ex-manual users. Like me. :D hehehe

yes puwede naman if you want agad to feel the downshift but not really advisable. It is for checking lang if the OD button is still working IMO.

[airolynx]

Good news indeed and great reco kay sir airolynx!

Thanks sir Ry_Tower! Appreciate it. I'm happy to be of help to our fellow Tsikoteers.