VT V6 Missing

[Kernal]

Hey guys,

Ive searched around but couldn't find anything that relates to my problem.

VT V6 slight miss on idle. Also on light acceleration up to 25% throttle miss get a little worse.
When you get into it it clears up.

I have changed the plugs, leads are fine, coils are fine, new fuel filter and air filter is clean, MAF is fine.

Any help would be great.

 

[])R@G()N]

Have you checked the purge hose that connects to the bottom of the throttle body sometimes this will come off and makes the engine runs rough

Stolen from another thread

 

[Kernal]

Nah its not rough, just that slight miss. But ill check it just in case.

The thing that the coil packs are bolted onto, that wouldnt be the problem would it?

 

[Burnout124]

posible air leak my vt had a craked egr pipe it had miss at idle and under light load

 

[Kernal]

posible air leak my vt had a craked egr pipe it had miss at idle and under light load

Where would i find the egr pipe? and how would i check for the leak?

 

[a1k3m1]

the EGR pipe is the steel pipe thats connected between the manifold and the exhaust headers, you might be able to hear it sucking air when the engine is on to see if thers a leak

 

[kingsvy]

i also have sucking noise and problem with acceleration can anybody help?

 

[NV-MY-VT]

Dragon has posted some marvelous advice.

Check the two vacuum leads on your throttle body, as well as the EGR pipe.

Generally, any "sucking" sound coming from an engine that ISNT coming from your air intake is bad sign...

 

[pablo]

Get a piece of plastic hose and put one end next to your ear, then move the other end closely over all the vacuum pipes with the motor running. Any leaks will be heard through the pipe to your ear.

 

[NV-MY-VT]

Plastic hose != a straw

Sometimes I don't think things through...

Anyway, what worked charms for me was one of those brightly colored plastic "noisemaker" tubes that small children swing around in circles and make deep "wooaawwooaaaww" noises with. Again, as I said, I'm an idiot.