Hello all. I am attempting to clean the IACV on my 1989 carbureted Honda Accord, but there is one small problem that I am hoping you all can help me with... I can not located the thing! Any info. on the location of it would be greatly appreciated. Thanks.

 

A carbureted car does not have an IACV. Idle is control w/ steps on the throttle stop cam and linkage to choke usually.

A shop manual will help.

good luck

 

Thanks for the quick response. No wonder why I couldn't find the dang valve! lol.

 

Doesn't the carburetor have a rudimentary idle-control system?

Parts drawing shows a "frequency solenoid valve" part #35 & "air control" valve #14. Together they are the ancestors of the IACV that we know today.

If you're chasing an idle problem, I guess you could clean them. I don't know anything about any adjustment or setup that might be needed. But don't forget to look for vacuum leaks anywhere in that rats nest of tubing.

 

What issue are you having with it? I "fairly" good with these 3rd gen carb's.

 

The issue I'm having with it is that it completely stalls out when coming to stops or slowing down to take turns. It idles fine when in park but dies out when shifting into drive or reverse if you don't feather the gas pedal. Thanks for the help.

 

Kind of sounds like a vac leak, the load of placing it in gear....or "letting off" the gas quickly.

Check for vac leaks, as Jim stated there is a "rats nest" of tubing. Also check around that base plate of the carb. While you are there, might as well give the throat a good cleaning as well.

While the air cleaner base is off, check the float level as well - there is a "sight glass" on the side of the carb. Stand at the drivers tire and look at the carb and you will see it.

 

I've seen auto-trans carburators where there's a solenoid that pushes on the throttle bellcrank when you shift the transmission into gear. That opens the throttle a bit to keep it from stalling. Does this carburetor have that kind of mechanism?

Having said that, all my carburetor cars have been manual transmission so I'm sorta guessing.

 

I recently had that solenoid checked and it worked fine, I did find a missing needle screw on the rear of the carb that is hopefully the cause of my issues. There is gas puddling in the carb when its idling. Thanks for the advice.

 

If you cover the hole with your finger does it get any better? Either way if there is a "mixture" screw missing. Get that replaced and then see what you have.

The "puddling" in the carb at idle has me thinking of another issue but let's take one at at a time.....what did the float level look like?