5.0 Help!!!!!!!!!!!

MustangLover708 said:
Well guys after much work and time i changed the vacums and hoses that go to from the smog pump to the cats and is still running crappy!!!!!!!! eny suggestions??
I would not necessarily have expected the replacement of the AIR system hoses to help the issue (people remove that crap and often note no difference in performance. That tells me that even if it faulters, it should not have a real effect on drivability).

Please recap exactly what the car is doing - there are a lot of posts to sift through on this thread. You have a captive audience and I'm sure some/many of the smart folks here can give ya some pointers and things they'd check.

Good luck Mario.
 
well the problem that im having with the car is that it doesnt have the power its supposed to have during take off. lets just say im in a stop light then its time to go i press the accelerator and the car takes of slow and accelerates little by little. Even at idle if i accelerate it doesnt accelerate as soon as i press the gas and sounds as if the engine chokes wen i do that. I still havent checked it with a scaner because i dont have one but on tues i will take it to my old autotech teacher and use his.

by the way thanks for your help guys!!!!!
 
Perform a cylinder balance test with the scanner when you use it. It can guide you to a particular problem cylinder if an injector is at fault. Mine has been doing that on and off ever since I had the car. It always seemed to be spark plug wire related on mine and was easily cured. Now it started doing it again recently and I can't seem to find the problem. I haven't checked for codes yet though...
 
MustangLover708 said:
well the problem that im having with the car is that it doesnt have the power its supposed to have during take off. lets just say im in a stop light then its time to go i press the accelerator and the car takes of slow and accelerates little by little. Even at idle if i accelerate it doesnt accelerate as soon as i press the gas and sounds as if the engine chokes wen i do that. I still havent checked it with a scaner because i dont have one but on tues i will take it to my old autotech teacher and use his.

by the way thanks for your help guys!!!!!
This sounds good. We're assuming your teacher has a real scanner (not a code reader). You'll be able to view real-time PIDs. The data-link cable should be long enough that if you roll down the window and snake the cable through the rubber around the hood hinge, you can put the scanner in your teacher's lap while you drive around a parking lot. He can capture the data when it acts up and see what's going on. That's a great way to see what sensory input is doing when a car is acting strangely, as yours is.

Please let us know if you have an auto or manual trans too. We'll post up some info about the issue depending upon which one you have.

Good luck.
 
HISSIN50 said:
This sounds good. We're assuming your teacher has a real scanner (not a code reader). You'll be able to view real-time PIDs. The data-link cable should be long enough that if you roll down the window and snake the cable through the rubber around the hood hinge, you can put the scanner in your teacher's lap while you drive around a parking lot. He can capture the data when it acts up and see what's going on. That's a great way to see what sensory input is doing when a car is acting strangely, as yours is.

Please let us know if you have an auto or manual trans too. We'll post up some info about the issue depending upon which one you have.

Good luck.





Well i have an auto transmission and my old teacher just got a $4,000 snap-on scanner so hopefully that will give me some good data and as soon as i get some good info ill inform you guys!!!!!
 
if it's hesitating horribly.....during acceleration...Stephane you remember how my car was in the summer, and I threw no codes except for lack of smog pump

Check your plugs, they could be bunged up and/or cracked, and if you're running platinums, get rid of'em...

might seem like too simple of an answer, but check it out, because my car was running horribly slowly until I did a complete tuneup and found that my platinum plugs were destroyed...Champion plugs (15 bucks) solved my problem.
 
xr8d302 said:
if it's hesitating horribly.....during acceleration...Stephane you remember how my car was in the summer, and I threw no codes except for lack of smog pump

Check your plugs, they could be bunged up and/or cracked, and if you're running platinums, get rid of'em...

might seem like too simple of an answer, but check it out, because my car was running horribly slowly until I did a complete tuneup and found that my platinum plugs were destroyed...Champion plugs (15 bucks) solved my problem.


Well im using ac/delco plugs. I was also thinking that maybe my injectors could be a problem but i guess ill try doing a tune-up and if that doesnt work ill let what ever codes i get decide wat to do next. :D
 
MustangLover708 said:
Well im using ac/delco plugs. I was also thinking that maybe my injectors could be a problem but i guess ill try doing a tune-up and if that doesnt work ill let what ever codes i get decide wat to do next. :D
If you think you have an injector issue, see 1TMF's post about doing a cylinder balance test. It's a neat, quick little diagnostic tool.

Good luck.
 
MustangLover708 said:
Well guys i went to ma teachers shop class and turns out he had every single adapter except the ford one so i have to wait on the codes till i can find a good shop to take it to.
Go to O'Reileys and get a $30 code puller. It will come in handy later.

And remember, the plug is under the hood, not in the car.
 
MustangLover708 said:
Well i have an auto transmission and my old teacher just got a $4,000 snap-on scanner so hopefully that will give me some good data and as soon as i get some good info ill inform you guys!!!!!
And it wont hook up to a FORD?

Good God I think he may have wasted his money.
 
That's too bad. Being hooked up to a scanner would have been real nice (as opposed to just getting codes with a reader).

Good luck.
 
Well guys just came back from a local shop they told me their scanner didint get any codes eventhough my check engine light comes up so next step is spark plugs. :bang:
and i looked up O'Reileys and its too far away fro me so ill just try a murrays or auto zone to get a code puller if they have any.
 
The codes should have been spit (unless the battery was disconnected for a bit of time since the CEL came on). That's weird. Did they use the connector under the hood to get codes?

Good call on getting your own reader. I use a jumper wire and do it for free, but if buying a reader, the LCD screen version would be my choice.

Good luck.
 
HISSIN50 said:
The codes should have been spit (unless the battery was disconnected for a bit of time since the CEL came on). That's weird. Did they use the connector under the hood to get codes?

Good call on getting your own reader. I use a jumper wire and do it for free, but if buying a reader, the LCD screen version would be my choice.

Good luck.




well i did disconnect the battery on fri but ive bin driving the car after that and the check engine has bin coming back on. They did use the connector under the hood but nothing happened.