Transmission noise when accelerating

**nejikun** · September 15th, 2009 02:45 PM

Hi guys, tanong ko lang baka may idea kayo sa problem ng transmission ko. car is ae92, may naririnig kasi akong noise under(transmission), pag umaandar especially pag may concrete barrier sa left side ko which is nag babounce you sound kaya mas dinig ko sya "krrrrrkrrrr" something like that yung sound, nag kakaron lang ng sound na ganyan pag naka gear 1,2,3,4, or 5th while accelerating, pero pag nuetral and mag aaccelerate ako nothing unusual. ano kayang possible problem nito? Thanks.

**jick.cejoco** · September 16th, 2009 04:04 AM

Originally Posted by nejikun

Hi guys, tanong ko lang baka may idea kayo sa problem ng transmission ko. car is ae92, may naririnig kasi akong noise under(transmission), pag umaandar especially pag may concrete barrier sa left side ko which is nag babounce you sound kaya mas dinig ko sya "krrrrrkrrrr" something like that yung sound, nag kakaron lang ng sound na ganyan pag naka gear 1,2,3,4, or 5th while accelerating, pero pag nuetral and mag aaccelerate ako nothing unusual. ano kayang possible problem nito? Thanks.

nejikun,
check/adjust the tire pressure and try to replicate the noise in the area you noticed it while traffic will be low and leave the transmission while coasting. it might be tire noise you are hearing. or better, have your wheel bearings tested for damage.
jick

**roadster_legacy** · September 25th, 2009 03:44 AM

Originally Posted by nejikun

Hi guys, tanong ko lang baka may idea kayo sa problem ng transmission ko. car is ae92, may naririnig kasi akong noise under(transmission), pag umaandar especially pag may concrete barrier sa left side ko which is nag babounce you sound kaya mas dinig ko sya "krrrrrkrrrr" something like that yung sound, nag kakaron lang ng sound na ganyan pag naka gear 1,2,3,4, or 5th while accelerating, pero pag nuetral and mag aaccelerate ako nothing unusual. ano kayang possible problem nito? Thanks.

ganyan din sira ng kotse ko. Ni drive test ng mekaniko namin, sabi baka ung differential na daw sira. i'll have it checked this weekend and provide you feedback then.

**1D4LV** · September 25th, 2009 09:01 AM

baka hindi sa transmission yun bro. i have a feeling its on the suspension area or on the brakes. pa check mo na lang bro.

**nejikun** · September 29th, 2009 08:24 AM

Salamat sa reply mga sir's.. walang namang problem ang suspension ko as of now walang kalampag, ang suspetsa ko talaga sa transmission since nag iingay lang sya pag naka gear na ako.. ganito kasi, for example running * 60kph tapos nasa 4th gear, pag press mo yung accelerator maririnig mo yung noise, pero while running and press the clutch as in totally walang noise, so parang clutch and plates, bearing.

*roadster_legacy

sige sir pa update naman ako kung ano magiging result nung sa auto mo.

Thanks.

**v6dreamer** · September 29th, 2009 08:39 AM

Have you ever done a preventative maintenance? Fairly basic and inexpensive, it is helpful to make sure you complete the one or two major service procedures that include replacing (flushing) your transmission fluid.

**jick.cejoco** · September 30th, 2009 05:54 AM

Originally Posted by nejikun

Salamat sa reply mga sir's.. walang namang problem ang suspension ko as of now walang kalampag, ang suspetsa ko talaga sa transmission since nag iingay lang sya pag naka gear na ako.. ganito kasi, for example running * 60kph tapos nasa 4th gear, pag press mo yung accelerator maririnig mo yung noise, pero while running and press the clutch as in totally walang noise, so parang clutch and plates, bearing.

*roadster_legacy

sige sir pa update naman ako kung ano magiging result nung sa auto mo.

Thanks.

nejikun,
i know you are not dreaming. the noise might be detonation resulting from wrong ignition timing, carbon buildup ( causes pre ignition or combustion starts before spark plugs fire) or wrong fuel octane number. have your ignition timing verified, decarbonize your combustion chambers and use a higher octane fuel. and please give us a feedback after doing these changes or trials
jickl

**RedCoder1** · October 15th, 2009 11:23 AM

Sir, may update po ba kayo dito? Ganito din kasi napapansin ko sa sasakyan ko sa ngayon. Ganoon din ang tunog. Lumalakas yung tunog nya kapag nakatagilid yung sasakyan. Yung mas mataas yung isang side habang umaandar. Sa ilalim nga din yung tunog nanggagaling. Naayos na po ba sa inyo? ano po ginawa?

**kurby** · November 1st, 2010 01:04 AM

Originally Posted by jick.cejoco

nejikun,
i know you are not dreaming. the noise might be detonation resulting from wrong ignition timing, carbon buildup ( causes pre ignition or combustion starts before spark plugs fire) or wrong fuel octane number. have your ignition timing verified, decarbonize your combustion chambers and use a higher octane fuel. and please give us a feedback after doing these changes or trials
jickl

Sir, I think you are correct.

I also experience this. If you step on the gas pedal you'll hear this noise until 3,000 rpm and after that it'll be gone.

I checked the engine timing at idle and it's at 10deg. Its a GA16DNE Sentra engine by the way.

Does it mean that I'm using a low octane fuel? Its rating is 95 octane.

Thanks!

**kurby** · November 1st, 2010 01:23 AM

Originally Posted by jick.cejoco

nejikun,
i know you are not dreaming. the noise might be detonation resulting from wrong ignition timing, carbon buildup ( causes pre ignition or combustion starts before spark plugs fire) or wrong fuel octane number. have your ignition timing verified, decarbonize your combustion chambers and use a higher octane fuel. and please give us a feedback after doing these changes or trials
jickl

Sir, I think you are correct.

I also experience this. If you step on the gas pedal you'll hear this noise until 3,000 rpm and after that it'll be gone.

I checked the engine timing at idle and it's at 10deg. Its a GA16DNE Sentra engine by the way.

Does it mean that I'm using a low octane fuel? Its rating is 95 octane.

Thanks!