WTF... Car Breaks Up Now

Nagash01WS6 · Mar 24, 2004

Got the Cobra R hood to latch today... and I changed the oil.

Now the car breaks up a couple minutes after startup.

Whats the deal???? Anything I could have hit and should check????

donkey_punch · Mar 24, 2004

did you put the oil cap back on?

94GTLaserRC · Mar 24, 2004

Kyle..
Can you be a little more specific than "breaks up"?

RC

Nagash01WS6 · Mar 24, 2004

Feels like its missing on a few cylinders.
Mostly midrange... get it up to around 3k and it stops doing it.

94GTLaserRC · Mar 24, 2004

Well,
Since you just got the car anyways, I would change the plugs and wires. Autolites 25. As you take each of the old ones out, check the gaps to see if they are ok.

Is there a chance that you knocked one of the wires off when you changed the oil?

The last time I changed my plugs...one of the wires was not seated all the way down and it did this.

Let us know.
RC

Rootus · Mar 24, 2004

When I had a misfiring plug, it would be choppy under load until about 3k RPM or so, and then it would take off like nothing was wrong. So like RC said, that would be a good first place to look...

Nagash01WS6 · Mar 24, 2004

I just fixed the same thing in the T/A.

Wound up being the A/F meter attached to the O2 sensor.

Anyway... I'll check the plugs tomorrow... probably have to do the damn wires as well since they look very stock and will probably break.

1105 · Mar 24, 2004

Kyle, check out Action Auto? Action Performance? over near US1 on International. They have some Ford Motorsports wires there for around $45. Don't get any wires from discount... I did that and ended up bringing them back that day because they were "universal fit" wires

The FMS wires arent the best, but I havent had any problems with the ones I have (just have to cut them a little if you want them to fit right because they are too long) but most on here don't like them.

Nagash01WS6 · Mar 24, 2004

Yep... I gotta stop by there tomorrow anyway to swap out a set of TR5's for TR55's. Then I get to go take a CPT at DBCC. weeeeeeeeeeee fun day.

After that I'll go home and change the plugs and wires. I might pick up a new cap / rotor while Im there. MSD parts decent????

1105 · Mar 24, 2004

MSD parts are decent. The color of the cap will match your car too I wanted one but didn't have the money at the time.

94GTLaserRC · Mar 25, 2004

Nagash01WS6 said:
I just fixed the same thing in the T/A.

Wound up being the A/F meter attached to the O2 sensor.

Anyway... I'll check the plugs tomorrow... probably have to do the damn wires as well since they look very stock and will probably break.

Since you mention that, also wouldnt hurt to clean the MAF and sensor, and check the O2's on the pipes.

I just recently changed my 02's, and I believe that most of our cars should have had them changed at least once by now...

But start with the plugs/wires first, since you'll want to tune it anyways!
RC

1105 · Mar 25, 2004

94GTLaserRC said:
I just recently changed my 02's, and I believe that most of our cars should have had them changed at least once by now...
RC

Still running stock O2's on my almost 123k mile car I really need to get new ones

SN95StangMan · Mar 25, 2004

I would check for a vacuum leak too. My car would sputter in the low RPM range and die after a while if I just had it idling in the driveway.

Numbles · Mar 25, 2004

1105 said:
Still running stock O2's on my almost 123k mile car I really need to get new ones

Ahhhhhh, right behind you at 107k. LOL. I think they might be the cause of my pinging problem. Oh wait, I just spent close to a grand on parts. I guess it must be the 87 cotane I can barely afford. Just went over $2 for the cheap stuff here in Chicago.

94Blue302GT · Mar 25, 2004

Numbles said:
Ahhhhhh, right behind you at 107k. LOL. I think they might be the cause of my pinging problem. Oh wait, I just spent close to a grand on parts. I guess it must be the 87 cotane I can barely afford. Just went over $2 for the cheap stuff here in Chicago.

Hey now, i've got 105, no pinging at 14* and gas is 1.79 down here on the south side! although... it's still hurtin big time

94GTLaserRC · Mar 25, 2004

Zach and Numbles, When you do the power adders and start messing with the A/F ratios, you are likely to F,,,, up the O2's. I think that's what happened to me!
RC

Nagash01WS6 · Mar 25, 2004

Picked up MSD cap / rotor, FSM 9mm wires and NGK TR5 plugs today. It's all goin in tomorrow... hopefully it takes care of it.

Numbles · Mar 25, 2004

Nagash01WS6, I think after this it will be running smooth with no problems.

94Blue302GT, Im in Lincoln Park and they dont lower prices over here at any time of the year. Where are you filling up because I will drive to the South side for that price lol.

1105 · Mar 25, 2004

Kyle, you should take the car to OSW tomorrow and test it out

RC, I know I need some new O2's, I even said so I kept saying "OK, after I buy this I'm getting new O2 sensors." Well exhaust came and no O2's, intake came and no O2's, rims came and no O2, intake came and still no O2's and this was the point where I was like I REALLY NEED the O2's, then heads/cam came and still no O2's lol and now turbos... I dont think I'll ever get new O2 sensors

Nagash01WS6 · Mar 26, 2004

Say... anyone know of a good paint shop in the area?????
It needs paint and a front bumper like now.

Im gonna have to clay this thing just to get the rough paint feeling off the doors....

WTF... Car Breaks Up Now

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