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