headache after headache

im gettin really desperate now, all i wana do is get rid of my 3000 all iv had is problems with it. ok well i recently had a used engine put in w/ 75k miles on it. i had a loud sound wen i would start it up but found out it was the hydrolyic tensioner and replaced it. but it is still studdering really bad when i give it the gas, iv had thefuel injectors cleaned but it isnt that. any ideas would be great i just need to get it running ok so i can get it to sell. any help would be great - chris

fuel pump maybe?

dam what kind of abuse did you give your car man? or is it you just never kept up with the maintanance?

studders when you give it gas...sounds like basic maintenance problem. first when is the last time you have checked the following: spark plugs & wires, air filter, fuel filter, disributor cap, rotor, etc.

also, you cant really check this but it could be your MAS reading wrong.

also, your timing could be off. and you could have a vacuum leak.

dam what kind of abuse did you give your car man? or is it you just never kept up with the maintanance?

haha i ask for some help and i have a moron like you answer by saying that. if you didnt have any advice on how to help me whats the point in posting? get a life man

studders when you give it gas...sounds like basic maintenance problem. first when is the last time you have checked the following: spark plugs & wires, air filter, fuel filter, disributor cap, rotor, etc.

also, you cant really check this but it could be your MAS reading wrong.

also, your timing could be off. and you could have a vacuum leak.

thanks for the help. the mechanic that put the engine in said he did the maintance before heput it in, checked wires, replaced spark plugs, cleaned fuel injectors all of that. i checked theair filter looks good, i replaced the fuel filter. so still really stuck on wat it could be. i jus want this problem car runnin so i can jus get rid of it!!

haha i ask for some help and i have a moron like you answer by saying that. if you didnt have any advice on how to help me whats the point in posting? get a life man

Hi, your new here, so let me explain some things...we don't tolerate flamming...as you have just joined, you were supposed to read teh AF user guidelines...where there is a specific part about flamming. When you have a problem and ask for help, we are happy to oblige, however when you start insulting other members, especially ones who are regulars and well liked, people remember that. This is one place you don't want to start off acting like a prick.

If you feel his reply didn't offer you the technical response you were looking for, then you are free to let him know, but I suggest you put more consideration into how you go about wording that.

Now as far as your problem, I'd pull your front 3 plugs and check them. Regardless of what the mechanic said, it would be a good idea to check yourself.

They may have been fouled out, plus once you pull them, you can read them and see if you are running lean or rich, and they may lead you to the right track. The fronts are probably similar to the rear ones, so just pull the fronts as they are easier.
Instructions are in the FAQ.

i guess you could say im new at posting, i joined many months ago but i mostly read all the threads just to gain knolwedge about the cars, and of course because they are interesting.

so about me flaming, i cant say i agree.put your self in my postion, pretned you asked a question to get advice and some one answers with damn what kind of abuse did you give your car, and, or is it that you jsut didnt keep up with the maintnance. and you can honestly say that wasnt HIM bein a complete prick? im not sure how his response was at all aprroritate. so not sure why you made that comment to me and not him also.

i'm not at all trying to be disliked, ect, just trying to get some help from people who seem to be knolwedgable on the subject, jsut really stuck and really desperate. and again thanks for the help i have gotten

ok...i have a couple questions for you...

1. does it studder or misfire at idle or just when you hit the gas???
2. after you hit the gas, does it even out after you get to a certain RPM?
3. if you rev it slowly, and then give it moderate gas in neatral does it not misfire?

either way it sounds ignition related, might want to change the plugs reguardless, the mechanic could have put some cheapies or the wrong plugs in...or reused plugs from another car. mechanic's have a tendency of being DUMBASS's alot of times.

1. yes it studders alittle when idling, that and it just idles really rough
2. yea if i keep it at a certain rpm(lower then slowly work my way up) it will even out
3. i dont remember it misfiring while doing this

yea its been rainin and cold and iv had work and school but as soon as i get a free second i gotta change my spark plugs

oh and one more thing, i had a friend of mine say when he put an intake on his car and it throw off his mass air sensor and ran terrible and almost did what my car is doing now. i thought that since i have an intake maybe when it was put on my new used engine, it might be the same thing. to me this sounds like an intake could never do that but just wondering and opinions on it.. thanx again man

usually an intake doesnt cause the MAF sensor to misread or anything...what happens is, when people install air filters sometimes the air filter is too close to the MAF so when the air is coming into the intake piping faster and at more volume, it will cause turbulence on the sensor causing it not to be able to read accurately...

but on the other hand, the MAF sensor can cause your problem if it is not reading accurately. also, 3000gt's should have some kind of Idle Air Control Valve or something of that sort, that controls idle. also check your TPS sensor (Throttle Postion Sensor). but i would start with the plugs...i am almost positive you have a bad plug.

It's your plugs, not your intake.

I would check the intake/exhaust. I had crack in the gasket connecting the exhaust header to the block and the car would hesitate when gave it gas below 2000 rpm. My guess is that the ECU had a descepency between the Air Mass control sensor and the Oxygen sensor and was trying to adjust the air/fuel mixture out of tolerances.