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the heater separator is part 502  

there is white stuff in the oil as well.  i dont know if this has anything to do with the separator, but i did have the oil changed recently...  

I did not examine the spark plugs or the ignition system.  It doesn't miss or misfire, just surge in rpm's when coasting or idling.  The separator hose is collapsed and i am sure it has a big leak.  would this cause the surging and throttling?  

YES...

vacuum leaks will cause all kind of problems..

i have spent many trips to the auto parts store wondering through the back isles with a sample hose.. looking at the molded heater hoses...

there are a few emission hoses from dorman that are premolded.

but i cannot see your hose or the size of the fitting so i might give you an idea of what size to use..   i have done all kinds of stuff to cure vacuum leaks..  

dorman 46002...   usually hanging out on the idles...



dorman 46001



there are a few more..  

I will check for those dorman hoses and try to find one that fits.  i hate driving the car around like this.  it cant be good for it.  

I located a piece of heater hose similar to the shown above.  If I can install it, what do I do with the old hose with the element within?  will I need to leave it hooked up to 12-volts?  Can I just leave the plug and wire dangling or must I hook it up to that same element?  

how is the heater element installed in the hose???

this is not something i have EVER seen...

log in.. ........  next to where you log out at.. you will see the message link..   click that.. you have a message waiting..  

I am not sure how the heating element is installed into the hose.  The hose has a two-pin 12-volt plug on the side.  I assume its simply coiled around within the hose somehow.   I have not yet tried to remove it.  I am afraid I will destroy it and then be stuck.   Right now the car runs....it surges...... I did find the formed hose.  do you want me to take a photograph of it?  I would photograph the hose in question, the separator, but it really can't be too well seen.  Let me know, I could also photograph it and send it to your e mail.  thanks for all your help.  

I disconnected one end of the separator hose.   Its actually called the Crankcase Ventilation Heater Assembly (Intake Manifold to Separator).   The hose has a solid core going down into the hose.  It reaches into the oil separator too.  I did not remove the hose.  This may be a heating element inserted within.