Question about 1995 Toyota Supra

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What could be the cause of a knocking sound coming from the top of the rocker cover when my 3s-fse D4 engine is running at low idle?

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I had similar problem mine was due to Exhaust gas recirculation failure. once we sealed off the EGR the problem stopped. Also changed the air filter

Posted on Apr 27, 2015

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Poor oil circulation, worn cam shaft lobes/caps, worn valve shims.

Posted on May 31, 2010


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Toyota vista d4 engine runs then shuts after a while drive.cools down then starts again.3s-fse

It seems somebody tempered with the throttlebody air adjustment so whenever the car heats up they will be more air supplied to mix with fuel it blows the fuel out plus the heat coming makes the car does what we call preignition rendering the cylinder useless at the point of combustion but after it cools down with the air switch automatically switched off for cold start it will run

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The speedometer on my 1998 toyota D4 corona premio, 3s engine, suddenly drops when i step on the accelerator with the intention of increasing my speed. when i try to speed up the vehicle almost stops but...

3s-fse-d4-engine???? 3s-GE OR GE WITH RED BEAM? "VVT"
the key factor is engine RPM
if it rises, but not speed, that is trans./clutch slip
if no rpm rise that is weak engine , BUT IS THE RED BEAM.?

2: ENGINE ecu stuck in limphome, scan it, see errors, BINGO
3: engine misfiring, cause by low compression, weak spark or bad fueling (too rich or too lean) many tests, ask.
4: low fuel pressure or regulator not regulation per FsM PAGE
5:STUCK OPEN egr main valve (missing in some countries)
6: melted cat converter , vacuum gage reads real bad,
7: and more, i charge more for more, LOL vvt?

ask or tell?
i want wild guessing
or I want to do the tests. to find it.

Gue$$ or Test.
toss coin.?

Jan 08, 2015 | Toyota Cars & Trucks

1 Answer

3s fse d4 engine

check fuel pressure. change fuel filter. Replace pump if necessary

Nov 03, 2013 | 2004 Toyota RAV4

1 Answer

3s-fse engine rattle

As a start, have the oil pressure measured. It should be about 10psi per 1000 RPM. If it seems low, the bottom end bearings are indeed suspect. The next step is to drop the sump pan, not a terrible job, and inspect these bearings.

Aug 28, 2017 | 1999 Toyota Camry

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I am in Zimbawe how do i get the manual for 3s-FSE D4 2.0L engine manual. Please help am very desparate. My email is

Dont have a manual for this vehicle but if you need any help with anything in particualr just reply to this post .

May 02, 2011 | 1995 Toyota Supra

1 Answer


maybe loose engine part.

Apr 08, 2010 | 2004 Toyota RAV4

3 Answers

Engine sound very noisy,knocking at the rocker cover

run low on oil by the sound of it ,,secondhand lump from scrapyard best soloution.if tisw an auto it could be the flex plate behind the torque converter

Aug 14, 2009 | 1996 Toyota Corolla

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