6G Celicas Forums

ok alt tested out a little low but ok (13 .1 volts) now i am being told its the intank fule pump filter... is this possable??? i also had somthing ealse wired happen today, when i was at a drive up window geting KFC the drive up win. had a steep bank to it causing the car to sit higher on the driverside. while waiting for the food celi started misfireing like crazy with everything off and it was cool outside, as soon as i got the food and drove onto level ground the misfire went away!!!!! some one please tell me what the hell is wrong with my car!!!

o2 sensor? did you clean your aic?

in tank fuel filter is posisble. mine was never changed and was pretty gunked up but didn't fix my problem. i also added a new fuel pump at the same time.

i am starting to think my problem is mechanical (valve, piston, head, etc)

how many miles does your engine have? you have the 3sgte, correct?

my car has about 200K on it and is a 5s auto... i did notice i have a slight valve tap at full wot in my car last night but it on klicks a fuy times in first gear and is gone after that...

mine has 150k but I think the owners before me ran the little 5S like it was a top fuel dragster!!

I was going to replace the pistons, rings, and bearings but I am not burning oil or smoking out the exhaust so I believe they are ok. Compression tested ok.

have you done a compression test?

This post has been edited by cv7713: Nov 9, 2007 - 11:36 AM

no not at this time i will by fri cause this has gota stop!!!

i dont think thats it.
the problem you guys have sounds like something small and easy to fix.

like i said, get a video. its hard to diagnose car problems over the internet.




thats too low. you should be getting about 14v.
you need to remove your battery and alt from your car, and have them BOTH bench tested.

ok, here's a couple of vids... tonight it only appeared to misfire after the fan would turn on? I am not sure if this is a coincidence or consistent....

1st, spark plug tester. car misfires with 14 seconds left and again with 10 seconds left. when you see the image shake, that's when it misfires... you can't really hear it though over the fans...

http://s223.photobucket.com/albums/dd75/cv...nt=PA240411.flv


2nd, engine and exhaust. you can hear the misfire about 10 seconds after the fan turns on (again, very hard to hear over the fans) but when I go to the exhaust you can clearly hear the misfire with about 9 seconds of video left (the fan turns on with about 26 seconds left)...

http://s223.photobucket.com/albums/dd75/cv...nt=PA240417.flv


i tried to make a video while driving but you can't hear it at all... it's more feel than sound. just bogs down

This post has been edited by cv7713: Oct 24, 2007 - 8:32 PM

my misfire is identical to that!!!!

annoying huh?

This post has been edited by cv7713: Oct 24, 2007 - 8:40 PM

really hard to tell from that vid, but to me, it sounds like you have an exhaust leak. i would check to make sure there are no missing nuts or cracks on the exhaust manifold and exhaust.

thanks for all your suggestions lagos...

I am putting headers on and eliminating the cat in the next week or so... also, I am going to have my injectors sent to be cleaned. when I get them back I will replace the grommet that goes into the head. I never did that when I replaced them the first time. there may be a vac leak there...

yeah thats your problem then. it sounds like either the gasket for the header is leaking, or the cheap header cracked.

make sure you get a brand new gasket from toyota. not those cheap silver mesh gaskets they give you.

no headers yet, will be installed next week or so... I'm definatley getting better gaskets though... i was talking about the injector grommets that might be leaking

This post has been edited by cv7713: Oct 24, 2007 - 9:04 PM

Could a leaking header gasket cause the same problem only when the engine is cold, too? I'm having the exact same problem, but it goes away when the engine warms up. I noticed a leak coming from the header somewhere when I ran Seafoam through the vacuum yesterday.

yes, things heat - expand - and then seal. very common for an exhaust leak to only make noise on a cold engine, then go away when hot, however it will get worse to where it'll do it when hot as well.

Sounds like something with your battery connections or your alternator connections. Maybe your battery itself, since it really happens bad when you start pulling power for your ac blower and radio. Also since it acted up when you stopped on the incline makes me think its a loose wire thats arcing across and causing a short.

OK, I think I finally figured it out!!!! I believe it is the injector seals that go into the cylinder head. When I took the old ones off, they were cracked and chipped and one was even broken in half. So i purchased an aftermarket injector seal kit (B&A) and there is still the same problem but now its worse! It is a lot more frequent with the aftermarket seal kit. They do not seal as well as the Toyota ones. I am going to buy the ones from Toyota and hopefully that should solve it.

Also, got a present in the mail yesterday....

sweet!

i havent had time to realy mess with it but i hope you are right... i am so sick of this problem!!!! how difficult is the job and how much are the parts???