Engine Vibration On Gear Engagement

[Riz]

I have a mini van auto gear. Problem the engine tends to vibrate a lot when gear is engaged to either D or R.

On neutral / parking engine idles smoothly.

Any ideas pls

[Gayan Weerakoon]

Your gearbox is screwd get a new box.....

[Elvis_Pil]

Is the idle rough or does the engine vibrate?

[anjulau78]

  On 1/10/2011 at 11:12 AM, Gayan Weerakoon said:

Your gearbox is screwd get a new box.....

hey Gayan,

better U or to Riz....

[nexus]

  On 1/10/2011 at 10:59 AM, Riz said:

I have a mini van auto gear. Problem the engine tends to vibrate a lot when gear is engaged to either D or R.

On neutral / parking engine idles smoothly.

Any ideas pls

it this happens when the ac is on or of ?

i guess this is for your honda acty

btw i think it's a problem with you'r engine tuneup or ecu settings.

[Riz]

Thnks guys for ur answers.

Elvis - engine vibrates , idle ok.

Anjula - ?????????

Nexus - Yes Honda Acty,a/c on or off same issue

[nexus]

  On 1/10/2011 at 11:12 AM, Gayan Weerakoon said:

Your gearbox is screwd get a new box.....

gayan auto gear vibrate in D or R doesn't mean it's busted

[Gayan Weerakoon]

Since it happens only when he changes to D or R im pretty sure its the gearbox. If it was the engine it would vibrate on all gears regardless....

[nexus]

  On 1/10/2011 at 11:39 AM, Riz said:

Thnks guys for ur answers.

Elvis - engine vibrates , idle ok.

Anjula - ?????????

Nexus - Yes Honda Acty,a/c on or off same issue

as i said you should check you'r engine tuneup and ecu settings or maybe it's engine mounts or gearbox mounts check them as well good luck Riz

[Elvis_Pil]

Yup I'd check the mounts & engine ICV, plugs, timing etc. before the gear box. (assuming the gears are changing etc. properly)

[anjulau78]

  On 1/10/2011 at 11:39 AM, Riz said:

Thnks guys for ur answers.

Elvis - engine vibrates , idle ok.

Anjula - ?????????

Nexus - Yes Honda Acty,a/c on or off same issue

I wonder why gayan asked to replace the box....?

[Ripper]

even if it's the gearbox...most issues can be fixed without having to ditch the box and go for a new one!

[Riz]

Thnks a lot for ur advises, yes ICV valve and spark plugs were cleaned as Elvis said, the vibration reduced a bit,

but not completly, vibration was terrible earlier.

Although Gayan's prediction was gear box screwed, i was pretty sure since vibration reduced after ICV clean up

gearbox was not at fault.

May be perhaps as other advises, shall go underneath the van and check the conditions of the mounts etc..

[jdnet]

well the vibrations reduced after you cleaned the plugs? so it was prolly a misfire. How about installing some new plugs and checking the gap?

[Riz]

Well jdnet, actually i did a minor tune up cleaned the plugs resetted the gaps throttle body clean etc, which actually gave a little bit of a quick start and accelaration.

But vibration (gear engaged) reduced after ICV valve clean up, Is there any other things to clean.. reset etc.

other than mounts.

[jdnet]

  On 1/11/2011 at 10:29 AM, Riz said:

Well jdnet, actually i did a minor tune up cleaned the plugs resetted the gaps throttle body clean etc, which actually gave a little bit of a quick start and accelaration.

But vibration (gear engaged) reduced after ICV valve clean up, Is there any other things to clean.. reset etc.

other than mounts.

injectors, egr, intake maifold.

[Archon]

have you changed your gear oil? And checked the gear oil level? Do it when the engine is not running. what’s the color of the gear oil now? is it dark red (black-red)? .. if it so, then you have to change the gear oil.

[The Don]

Like a few has said, it sounds like the engine is not producing enough torque hence the vibration when gears are engaged. Could be a misfire or a tuning issue (the engine being retarded) or possibly a sensor/ ECU electronic issue. I'd actually plug the car to a diagnostic system and see what it reports.

How is the vehicle to drive and does it accelerate ok?

[Riz]

Archon - No i have not checked the colour of the oil, i shall check it tomrow...

Don - Accelaration ok, when the engine is hot the vibration tends to reduce a lot, vibrates a lot during first

cold start, another one more minor issue the engine too vibrates (gear disengaged)in the morning and once

hot idle ok.

[The Don]

Actually sounds like an issue with the fuel injection system. Take the car to Toyota Lanka, get it plugged to the diagnostic system and get a report. I think this should shed some light on the mystery.

[Shehan Niyas Wildchild]

  On 2/11/2011 at 11:22 AM, Riz said:

Archon - No i have not checked the colour of the oil, i shall check it tomrow...

Don - Accelaration ok, when the engine is hot the vibration tends to reduce a lot, vibrates a lot during first

cold start, another one more minor issue the engine too vibrates (gear disengaged)in the morning and once

hot idle ok.

first things first. try increasing engine idle rpm. if the engine is too slow then it might vibrate alot when a gear is engaged coz it tends to slow down when building up oil pressure in the torque converter.

if this fails (which i dont think it will)

wel, then seems you are having problems with a failing O2 sensor. try cleaning it.on the worst side u will have to replace it if cleaning doesnt help.

best thing is to scan for trouble codes..