Deisel Engine Vigorousy Vibrating

[Esharcangel]

Good Day Tuner,

I got an issue with my deisel engine. QD32.

Of lately when i start the van, the engine idles very vigorous and rough....not like the normal vibrations of a deisel engine.
The front of the vehice.....bumper, fog lights, grill shakes alot.

I checked the engine mounts.....in perfect condition, none damaged.
Checked the hoses connections....all tight.
Checked the diesel primer pump, its seems to be ok, priming properly.
Compression in both sump pan & head is excellent, when i remove the dip stick & cover....no back pressure.
Engine doesnt smoke when idling. on 4th and 5th i get some black diesel exhaust which is common.

So i'm at a stump!!!!

Anyone can shed some light? Anything else i can check?

Thanks alot.

[ru$$ell]

Check your diesel,drain your fuel filter and check it. If there is a high water content in the diesel it may be the cause. Recently had the same problem and when I drained my tank, was mostly filled with diesel with an extremely high water content.

[Esharcangel]

Thanks alot. Will definitely do and see what result i get.

[streetbeastINC.]

At time engine mounts get hard and lose ability to absorb vibration efficiently. You must know if it a rough idle due to malfunctioning engine

[Esharcangel]

Hmmm....thats good advice. I guess the only way to really check that is to replace them. Wonder if the ployutherene will be better?

[PariaMan]

Just my two cents

I had a similar problem. Hilux vibrating wildly on start up. Changed fuel filter and put in an amsoil diesel treatment and vibration went away

[Esharcangel]

An update to my problem....i changed out the fuel filter and i buy a fuel medic deisel treatment....and believe it..... i got a huge improvement....
But i still want to drain the fuel tank just to clean it out also

[zaria]

This engine don't carry balance shaft?
I would check if it does.