20v Knocking Sound When Accelerate

[KenDiriwan]

Dear all,

This knocking sound happens when i press on gas pedal, especially uphill. Well i have read about other topic/site just too many possibility so that i decided to create this topic and narrow down the troubleshooting range. It sounded like a small metal boll shaken in a mineral water bottle, think most of the senior knows exactly how it is as it seems to be a common 20v issue.

Heard that it is regarding Ron95 or 97 compatibility issue, but as i filled 97 ran running for already few hundred km's. Sound still occurs, have just serviced engine oil last just on last Saturday as well and replaced Spark Plug.

Please advise & thx.

 

[Dayline668]

The lowest premium fuel is RON98 for 20V in japan, so RON97 definitely not enough, retard the timing. If problem still then should check injector, maybe clog.

 

[yeeza]

The lowest premium fuel is RON98 for 20V in japan, so RON97 definitely not enough, retard the timing. If problem still then should check injector, maybe clog.

u mean 20v should pump atleast ron97 ?? omg im using 95 only

 

[KenDiriwan]

u mean 20v should pump atleast ron97 ?? omg im using 95 only

I do believe that is very subjective to each 20v condition. Bare in mind this is the 3rd blacktop i am driving only encountered this problem. Previous 2 car did not face such issue used Ron95 for few years. Which is why urge to seek on other possibilities.

p/s all 3 are Auto/tranny

 

[bera]

check for error code first...easiest and simple thing to do...fix and rectify the problem if there is any...reset the ecu...then redo your test...

check your hoses for leaks...happened to me before...the leak mess up the map sensor reading and cause the engine to run rough...

 

[KenDiriwan]

check for error code first...easiest and simple thing to do...fix and rectify the problem if there is any...reset the ecu...then redo your test...

check your hoses for leaks...happened to me before...the leak mess up the map sensor reading and cause the engine to run rough...

Hi there, is that mean connecting ecu to a diagnostic device ?

 

[Dayline668]

What u describe is knocking there, running lean n too much timing can cos knock, if u retard the timing n still knock, u should check fueling system. Some 16v also knock, depend on the engine health.

What bera suggest is did your check engine light on or flashing..? If so get the error code n fix the problem.

---------- Post added at 12:19 AM ---------- 6 hour anti-bump limit - Previous post was at 12:16 AM ----------

u mean 20v should pump atleast ron97 ?? omg im using 95 only

If your timing is already adjust by your mech then no problem running RON95.

 

[KenDiriwan]

What u describe is knocking there, running lean n too much timing can cos knock, if u retard the timing n still knock, u should check fueling system. Some 16v also knock, depend on the engine health.

What bera suggest is did your check engine light on or flashing..? If so get the error code n fix the problem.

---------- Post added at 12:19 AM ---------- 6 hour anti-bump limit - Previous post was at 12:16 AM ----------



If your timing is already adjust by your mech then no problem running RON95.

About engine light, it is on. Periodically, wouldn't be all the time but mostly. Anyway am seeking mechanic for proper checking and advice this weekend. Will get back here for sharing.

 

[ahle@]

last time my blacktop use BHP petro knocking kaw kaw....then use petronas less knocking...

 

[judean]

last time my blacktop use BHP petro knocking kaw kaw....then use petronas less knocking...

well in my case...
it's contradict with ur case...
mine better with BHP rather than petronas...
guess it's subjective lar kot ~
:hmmmm::hmmmm:

 

[bera]

About engine light, it is on. Periodically, wouldn't be all the time but mostly. Anyway am seeking mechanic for proper checking and advice this weekend. Will get back here for sharing.

no need to see mech la bro...just need a piece of wire then jump te1 and e1 at your diagnostic port...turn key to on position and check your "check engine light"...if no error found it will blink rapidly non stop...if got error code...it will blink accordingly...then google it...there a ton of information available online....better yet...double check with engine repair manual...which are also available online in pdf form...

 

[meg_omen]

just visit Haz Garage... get Acai opinion...:hmmmm:

btw... not all car/engine are the same...

 

[KenDiriwan]

just visit Haz Garage... get Acai opinion...:hmmmm:

btw... not all car/engine are the same...

Thanks for the input, where would that be ?

 

[me2kimi]

no need to see mech la bro...just need a piece of wire then jump te1 and e1 at your diagnostic port...turn key to on position and check your "check engine light"...if no error found it will blink rapidly non stop...if got error code...it will blink accordingly...then google it...there a ton of information available online....better yet...double check with engine repair manual...which are also available online in pdf form...

You can check detail procedure of self diagnostic HERE

 

[feipepe]

hi Mr me2kimi,
may i know can this 4age 20v used this device Super ultra ELM327 Ultra edition super small fast - Car Accessories & Parts for sale Selangor - Mudah.my for diagnostic? i meant used this bluetooth obd2 adapter to connect to our smart phone device

 

[me2kimi]

Sorry bro we cannot. Our 4age use OBD1 port, those gadjet are meant for OBD2 port

 

[mrs88]

Try Use thicker lubricant...

 

[6UE5t]

Like Dayline668 suggested, that symptom is more like engine knocking/detonation sound, so need to retard the ignition timing and check/adjust your air/fuel ratio (lambda value) if it's too lean.

 

[plank]

go to mechanic.. check ignition timing using timing light...
last week my engine knocking.... check ignition timing too retard,,, set to 10 degree.. increase little bit fuel pressure = knocking gone

 

[meg_omen]

4age 20V is not obd2 not obd1...
it's using much older type...:hmmmm:

you need Toyota diagnostic computer for that...
i think for the cost of this... you can get new Vios...