Hesitation at red light..

[Accord13&BA4]

What's up guys, my Accord has been giving me some weird problems lately...


Well, i changed the radiator as it was leaking...this ceased by bouncy idle. This has been about 1 month now.

Now, when im at a red light, the idle bounces slighty, and the car sputers... Its strange...

Any clues?

It idles fine otherwise...only when im at a light with the car in D and on the brake.


90 Lx
Automatic
Dist. has been replaced.

[wrichards2005]

Vaccuum leak or dirty IAC valve more than likely.

[turboaccordlx]

Thats odd hows the car know when its at a red light

[F22-GURU]

Be careful SteveB might not like that comment.

[Accord13&BA4]

Okay, im going to check out the IAC valve pronto...what should i be looking for?

dirt? coolant clows through that valve if im not mistaken...

[Neriah06]

dirt, if it is clogged it wont work, so just clean it, or replace. if you search that valve you will see about a million threads, because that is one of the most common problems with our accords, bouncy idle because of IAC valve.

[sublime]

Also make sure you have enough gas, puttering when gas light is on usually means its time for gas .

[SteveB]

Sounds like a slight vac leak.
Am I correct in assuming you bled the system after you replaced the rad?

Temp gauge read ok?

[Accord13&BA4]

Yup, of course i bled & replaced the radiator...temp gauge works fine...
That cleared away my bouncing idle...i had stupid amounts of air in my coolant lines...DONE.

So, it could be a leak somewhere on one of the vacuum lines? ...great...
if it was my IAC, then my car's idle would be all over the place...but i will check it out when i get home tonite...

The theory is this:
It only bounces and the car jerks while im waiting at a red light, in D. And it happens after about a 20 min drive...and only then on after


Thanks guys, let me know some more input so i can check all of it..

[SteveB]

So, it could be a leak somewhere on one of the vacuum lines? ...great...
if it was my IAC, then my car's idle would be all over the place...but i will check it out when i get home tonite...

A can of starting fluid (ether) judicially sprayed around some suspect vacuum connections (with engine in "trouble" mode) may reveal many wonderful things.

[deserthonda]

remove the tube that goes to throttle body, see if plate is gumed up, get a can of carb cleaner and a rag, clean the trottle body real good, also remove the idle adjuster screw . clean it and spray carb cleaner in the hole, , put all together , readjust idle and try it........

[deserthonda]

also add a can of BG 44K injector cleaner to a full tank of gas,,

you could have excessive carbon built up ..

[Accord13&BA4]

Thanks DesertHonda...will try that too


I am not going to put any fuel injector cleaner into my tank of gas...ive learned many times that those solutions will eat up the spark plug O-rings...:

Thanks man...

I will further investigate this...thanks guys!

[SteveB]

I am not going to put any fuel injector cleaner into my tank of gas...ive learned many times that those solutions will eat up the spark plug O-rings...:

Spark plugs don't have O rings.
Spark plug well seals in the head and valve cover don't come in contact with gasoline.

[Accord13&BA4]

Im tripping, i meant fuel injector o-rings...duh??