Topic: 1989 Runner

[1Bad4Runner]

I just bought a 1989 Toyota 4Runner and it has been sitting for a few months. The idle is kind of funny, right now it is idling at 500-600 rpm... What is a normal idling rpm?

also the idle is very up-and-down, When I have it is first gear while idling it feels like it wants to stall, but it is just the rough idle.

Oh, by the way, this is a 3.0L Fuel Injected!

[Pickup_foxrider]

Mine idles about the same. Mine whole truck shakes but that is from a bad engine mount. I need to replace. Hope that this helps.

[BLACKDOG]

I just bought a 1989 Toyota 4Runner and it has been sitting for a few months. The idle is kind of funny, right now it is idling at 500-600 rpm... What is a normal idling rpm?

also the idle is very up-and-down, When I have it is first gear while idling it feels like it wants to stall, but it is just the rough idle.

Oh, by the way, this is a 3.0L Fuel Injected!

My 3.0 does that too, but after I changed the fuel filter it ran smoother.  before I did my engine swap, my truck idled at around 900 rpm.  I need to bump it back up on the new(er) motor, and see how it works there.  You said it had sat for a for months?  The engine I put in my truck was from an 884runner that was parted out, and the motor sat for a while.  It seems as if these 3.0s dont hold their running qwuality for very long when left unused

[1Bad4Runner [OP]]

Mine idles about the same. Mine whole truck shakes but that is from a bad engine mount. I need to replace. Hope that this helps.

I don't think its the motor mount.

My 3.0 does that too, but after I changed the fuel filter it ran smoother. before I did my engine swap, my truck idled at around 900 rpm. I need to bump it back up on the new(er) motor, and see how it works there. You said it had sat for a for months? The engine I put in my truck was from an 884runner that was parted out, and the motor sat for a while. It seems as if these 3.0s dont hold their running qwuality for very long when left unused

Maybe I should check my fuel filter and see if it is dirty, also my throttle is sticking when I leave it sit for around an hour. I put oil on it but it doesn't help any.

[BLACKDOG]

Maybe I should check my fuel filter and see if it is dirty, also my throttle is sticking when I leave it sit for around an hour. I put oil on it but it doesn't help any.

Ok, that is funny.  My throttle was sticking as well.  One good stomp and it came unstuck, but as soon as my engine cooled down, it stuck again.  Once I changed my fuel filter, it went away.  Try that, its an easy fix, and if its the same fiulter that has been sitting for a few months, it prolly needs it anyway.

[1Bad4Runner [OP]]

Hah, this is great... I'm glad that you had all these problems (sort of) because this is helping me alot 

Thanks a lot BLACKDOG 

[BLACKDOG]

no problem, hows it coming?

[1Bad4Runner [OP]]

Bought a pump, couldn't get it in because one of the fittings wouldn't come off, so I have to try later again.

[Huhwhye]

I'm fixing this Chevy for a guy right now that does the same thing.  This is what I have done

Change or check the PCV and all vacuum hoses.

Cleaning the throttle body.  Use T-body cleaner or some Brake Cleaner if you already have it. Spray it into the TB to clean all the crap out.  There will be black and brown crud all over it if it's never been cleaned.  Then change the fuel filter and maybe run a bottle or 2 of Techron thru it.

Also check and make sure the cap, rotor, spark plugs and wires are in good shape.  They weren't

I also am running an AutoRX clean cycle with fresh oil and filter.  I also changed the air filter.

After I did all that, this Chevy with 160k miles on runs like new.  He hasn't picked the truck up yet, but I'm sure he'll be pleased.  I ran terrible before

[1Bad4Runner [OP]]

I'm fixing this Chevy for a guy right now that does the same thing. This is what I have done

Change or check the PCV and all vacuum hoses.

Cleaning the throttle body. Use T-body cleaner or some Brake Cleaner if you already have it. Spray it into the TB to clean all the crap out. There will be black and brown crud all over it if it's never been cleaned. Then change the fuel filter and maybe run a bottle or 2 of Techron thru it.

Also check and make sure the cap, rotor, spark plugs and wires are in good shape. They weren't

I also am running an AutoRX clean cycle with fresh oil and filter. I also changed the air filter.

After I did all that, this Chevy with 160k miles on runs like new. He hasn't picked the truck up yet, but I'm sure he'll be pleased. I ran terrible before

Thanks a lot Huhwhye, I will check all the vaccum hoses and check my air filter to see if it is dirty.

[1Bad4Runner [OP]]

I just replaced all of the vaccum hoses, except 2.. also I took the throttle body and the intake manifold off today and clean it all up. There was quite a layer of black crap all throughout the throttle body and intake, so I clean all of that out with carb cleaner.

It runs a lot better, the throttle doesn't stick anymore, but the idle is still up and down a lot... any ideas?