Engine knock sound when revving during coldstart = avanza

[dr. d]

tanong naman po. napansin ko lang pag coldstart, mag auto rev sya ng mga 1.5rpm. pag nagmamadali ako at kailangan na umalis at nag revolution na ako, me engine knock.

pero pag hinayaan ko mag warm up to 5mins bago ako umalis, wala knocking.

pa help naman po


avanza j
1.3
2007 model

is that really engine knock, or is that valve chatter?

[african888]

so higher pa sa gold which is ron93? not yet. ano po yong distributor?

[african888]

is that really engine knock, or is that valve chatter?

cant describe pero hindi naman sya yong tok tok tok pag nag revolusyon ka from cold start. me iba lang tunog pag rev ka. pero after 5mins of warm up, wala na noise kahit i rev ko.

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is that really engine knock, or is that valve chatter?

cant describe pero hindi naman sya yong tok tok tok pag nag revolusyon ka from cold start. me iba lang tunog pag rev ka. pero after 5mins of warm up, wala na noise kahit i rev ko.

[Walter]

Seems like the engine oil hasn't warmed up yet. If you want to minimize the noise, use better type of oil or use fully synthetic oil.

[Walter]

Caltex Gold is 95 octane. Higher would be Shell Nitro Racing 97 octane and Petron Blaze 100 octane.

[dr. d]

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[QUOTE=african888;2596550]cant describe pero hindi naman sya yong tok tok tok pag nag revolusyon ka from cold start. me iba lang tunog pag rev ka. pero after 5mins of warm up, wala na noise kahit i rev ko.

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well, engine knock has been typically described as the sound of marbles falling onto a metal tin roof.
and valve chatter, like multiple metallic clicking sounds.
either way, you probably have to bring it to a mechanic for possible timing adjustment and/or valve lash adjustment.
good luck.
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[Tacuri]

same problem here avanza 1.3 e at 16500 kms mileage. i already brought it to toyota pero sabi nila baka maluwag lang yung belt pero hanggang ngayon andyan pa rin

[african888]

observe ko pa kng nawala na nga..
pero ito na ginawa ko.
1.upgraded to caltex gold muna, mga 2 weeks na
2. change oil to shell helix yellow SN rating, 15w40

pansin ko mas tahimik makina, tapos ngayon yong warm up time ko reduced na to two minutes.. siguro next week try ko 1 min warm up time bago ko rev to check kung nawala na yong knocking.

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observe ko pa kng nawala na nga..
pero ito na ginawa ko.
1.upgraded to caltex gold muna, mga 2 weeks na
2. change oil to shell helix yellow SN rating, 15w40

pansin ko mas tahimik makina, tapos ngayon yong warm up time ko reduced na to two minutes.. siguro next week try ko 1 min warm up time bago ko rev to check kung nawala na yong knocking.