Cold Starting.

[GonOvr]

Alright guys... He is obviously isn't used to working on EFI. Let's give him a break.

SwiftRunner: some quick cheap fixes that may or may not help your situation.
First Seafoam the engine. Get a can of Seafoam, run your runner up to operating temperature. While its running pull hose off pictured below and stick it in the can of seafoam. Let it suck the seafoam in the engine and try to keep it running while it is doing it. I usually do about 1/2 to 3/4 of a bottle. Once you have the right amount in, immediately shut the engine off and let it sit for at least 5 minutes. During this time hook the hose you used back up. Fire it back up and watch the smoke come out... this is normal and will clear up.

Second change the fuel filter if you haven't done so and run a good fuel injector cleaner through the gas tank. Add it at the gas station right before you fill up. I recommend b-12 chemtool products.

It sounds like your injectors are dripping fuel instead of misting (atomizing) when it's cold.

 

[WoodsRunner88]

SwiftRunner, when you go to start your 4Runner does it fire for a second then die then crank for a while? When it does start does a puff of black smoke come out of the exhaust? If it was mine I would pull off the air filter and try starting it, an old clogged up filter can wreak havoc on EFI systems. If it still stuggles to start, find a friend to help you out with this. With the air filter taken out reach up inside the intake and you will feel a flapper that is part of the Mass Air Flow Sensor (MAFS). Have your friend try to start it, right before they turn the key to crank it, lightly push open the flapper about a half inch or so maybe a little more, and see if it fires up immediately. If it has a bad vacuum leak or a clogged air filter, then when it is cranking it might not be pulling enough air through the sensor, and if the flapper on the sensor doesn't move in enough it won't turn the fuel pump on. Toyota 4WD's are designed to turn the fuel pump off when the engine is not running, and not moving the flapper on the MAFS, so it doesn't leak fuel if the vehicle is in a wreck. Hope this helps, and Good Luck.

 

[SwiftRunner]

As with any internet forum, there are some guys that have to be ignored. Subhuman Subtegral basically is a pain in the ass. I found that post of his that disses a part's store owner. Definitely he isn't welcome there. Back to the task at hand, I changed the fuel filter a year or two ago. The 4runner cold started quickly up until a few months ago. I have been putting it up and leaving it the garage winters. I only have three weeks before I return to Florida, but I can try and follow the instructions in the last two posts if I get the time. I wouldn't doubt that there's something wrong with the jets, but it also leaks oil on hot engine parts which complicates the foul odor. The vehicle came with a K&N air filter. I charged it recently.

 

[SUBTEGRAL]

I'm a pain in your ass because you can't just type in plain English.

Reading your posts is tiresome because you try to sound smarter than what you are, and you come here only for free answers, no fun involved, only wanting free advise from mechanics. You never try to share anything with anyone, you only want ANSWERS.

As for my store owner thread -- it is a warning about doing any business with that man.

You DO NOT treat your customers in that manner.

So your little statement about me "definitely not being welcome there" comes from a place of utter ignorance.

Once again I say to you, think before you post, or GTFO.

 

[KidVermicious]

I'm a pain in your ass because you can't just type in plain English.

Reading your posts is tiresome because you try to sound smarter than what you are, and you come here only for free answers, no fun involved, only wanting free advise from mechanics. You never try to share anything with anyone, you only want ANSWERS.

As for my store owner thread -- it is a warning about doing any business with that man.

You DO NOT treat your customers in that manner.

So your little statement about me "definitely not being welcome there" comes from a place of utter ignorance.

Once again I say to you, think before you post, or GTFO.

Please stop. You don't like the guy, fine. Ignore him. But quit sh*tting up the place with your little ****fight, will ya?

 

[SUBTEGRAL]

I'll keep it up as long as he does.

 

[KidVermicious]

On ignore you go, then.

 

[SUBTEGRAL]

I don't ignore shi t.

 

[GonOvr]

please stop. You don't like the guy, fine. Ignore him. But quit sh*tting up the place with your little ****fight, will ya?

on ignore you go, then.

amen!

 

[SUBTEGRAL]

Hey, no religious stuff here. :nicethread: :snacker:

 

[SwiftRunner]

GonOvr, I followed your instructions with the Seafoam. It definitely has changed the composition of my exhaust. Is this a one time proceedure or do you repeat it after a period? Whatever, leaving it overnight, I should get an idea in the morning if it worked.

 

[SUBTEGRAL]

I'm the one who told you to SEA FOAM it a month ago! :bash:

 

[SwiftRunner]

It's so great having an ignore function on a forum. I just found it and got rid of some dead weight.:bluejump:

 

[SUBTEGRAL]

Finally!

It's a good thing since you only come here for mechanical advise, yet ignore over HALF of what anyone tries to help you with. :rockthrow:

 

[GonOvr]

GonOvr, I followed your instructions with the Seafoam. It definitely has changed the composition of my exhaust. Is this a one time proceedure or do you repeat it after a period? Whatever, leaving it overnight, I should get an idea in the morning if it worked.

Id say do annually, but you could do it once a month if you wanted too.

 

[SwiftRunner]

Thanks. It's still taking a long time cold starting. I also can't seem to locate where the gas seems to be leaking out. Oh, well, it gives me something to do.

 

[77'911]

You might consider doing some running and rest , fuel pressure tests. After so many years and miles, my guess is your loosing some through the injector/holder seals. I find plugs make a huge difference. I replace our NGK's at every oil change and it does make a big difference. The fuel the refineries are putting out is pretty much trash(high sulfur, low oct., ethanol, etc.), which means the rest of the systems in these old girls really needs to be up to snuff and then some.
It might be worth your time and $$ to pick up a factory toyota repair manual set. They are worth every penny in my book. There is 10X the info that most will ever use or comprehend in them for the average user(that includes me).
Run through the basics for cold start issues, fuel , spark, air leaks, etc.. Set a base line for parameters in testing certain components so you know there are systems working at proper factory specs.
regards

 

[SwiftRunner]

Although I did discover a problem with the EVAP, I still have trouble cold starting.

 

[SUBTEGRAL]

I had connected the charcoal canister with the wrong outlet when by-passing the BVSV. I do hope driving it this way has not adversely effected the SUV.

 

[SwiftRunner]

Now, yesterday I didn't run into a problem cold starting. However, the exhaust still smells of gasoline. I figure both symptoms, difficulty cold starting and the gas smell have the same cause. Unfortunately, I'm going to Florida in a week and have to put the 4runner up for the winter.