91 voyager runs rough 3.3

Hi all I would like to ask a question My 91 van has 211,000 kilos on it. I
have replaced plugs wires. The problem is sometimes it runs a bit rough when
idleing. What woud cause this? Thanks to all that reply and help. Dave.

 

Remove the throttle body and clean it (especially the ais pintle and
chamber). Look at the pcv hose too these crack and leak vacum. Barring these
it could be the coil pack or egr etc.
Larry

 

A vacuum leak between the upper intake and the lower intake
manifolds would be one cause.

A stuck open EGR valve would be another.

 

"Hi all I would like to ask a question My 91 van has 211,000 kilos on it."
WOW, that is serious weight!!!!

aside from being a "smart ass" I do know what you meant.

 

LOL .. what a card. I guess you could missinterpet the comment I will
refraze it. The kilometers on the van is 211,000 and it idles a bit rough.

 

Thank you will check this out. I have put a new pcv in and did not notice
the hose broke. But will recheck that.
Can you reclean EGR or should I just buy a new one?

 

Just replace it. THey are a common cause but....you may not have one either.
Larry