TB Butterfly Sticking Closed

[curtie94]

Hi my car 91' Accord with 173,000 miles has been doing this since I got the car and am wondering if there is a way to fix it. When I let go of the pedal a to apply the brakes or leave the car. The pedal sticks closed, I have cleaned the TB and still the same thing. You can not move the TB by hand under the hood, unless you hit it with something. It is also hard to move inside the car, I have to hit the pedal then the rpms jump to 1500 then back down, but sometimes it is restuck after.

Does anyone know how to fix this? Thanks

[dj_ender]

Hi my car 91' Accord with 173,000 miles has been doing this since I got the car and am wondering if there is a way to fix it. When I let go of the pedal a to apply the brakes or leave the car. The pedal sticks closed, I have cleaned the TB and still the same thing. You can not move the TB by hand under the hood, unless you hit it with something. It is also hard to move inside the car, I have to hit the pedal then the rpms jump to 1500 then back down, but sometimes it is restuck after.

Does anyone know how to fix this? Thanks

Clean the spring behind the rotor.

[curtie94]

Ive sprayed it down with wd40 and wiped it, but it still didn't fix, I did that when I cleaned the butterfly

[dj_ender]

Ive sprayed it down with wd40 and wiped it, but it still didn't fix, I did that when I cleaned the butterfly

Then the only other thing i could think of is that you might have a ring of gunk behind/in front of the butterfly and it's getting stuck.

[curtie94]

What is the correct way to clean it, ive used TB cleaner and a tooth brush

[dj_ender]

What is the correct way to clean it, ive used TB cleaner and a tooth brush

Did you remove the throttle body or just reach in there and clean it? I would remove it and clean it that way.

[curtie94]

No I just reached in, If I removed it wouldn't I need a new gasket? Or could I use silicone gasket.

[dj_ender]

No I just reached in, If I removed it wouldn't I need a new gasket? Or could I use silicone gasket.

If you are careful you can do it without hurting the gasket, but yes that is a possibility. But be careful of the TPS, don't submerge it.

[curtie94]

Is there a special way to clean the spring. Wait is there a way I could put oil on the butterfly and edges to make is not bind.

[dj_ender]

Is there a special way to clean the spring. Wait is there a way I could put oil on the butterfly and edges to make is not bind.

I cleaned mine with brake cleaner, and never oiled it, and it's fine. If your throttle is sticking so hard you have to jolt it to get it to move, I think that gonna have to pull it and really clean it good.

[curtie94]

ok ill do it tommorow and tell you how it works

[dj_ender]

ok ill do it tommorow and tell you how it works

After you pull the 4 nuts that hold on the throttle body, slowly separate it from the intake, usually you can use a knife/chisel to peel the gasket away so it doesn't tear. If it does, they are only a couple dollars.

[curtie94]

Alright, um does it seperate hard, should I try to seperate it from the TB or the Butterfly assembly.

[hyoslvr]

Id seperate it from the intake. Might as well clean eveything up real good while it's off.

[dj_ender]

Alright, um does it seperate hard, should I try to seperate it from the TB or the Butterfly assembly.

Pull the whole throttle body, that way you have access to the back side of the butterfly. I'm talking about the gasket between the throttle body and the intake manifold. After you loosen the 4 books that hold the throttle body on, slowly slide it off, making sure the gasket isn't sticking, if it does that's where the knife/chisel comes in. DO NOT gouge the mating surfaces, it will cause a vacuum leak.