[jcochran1]

hi my name is john, i am new to this so bare with me. i just bought a 99 mustang v6 3.8l. the engine was locked up, i pulled the sparg plugs and it turned over great, reinstalled plugs and engine started and ran good, except for real dark smoke. after a couple minutes engine locked up again, i remove plugs and they were fuel soaked. cleaned plugs reinstall and started and ran for 3 mnutes then locked up. please if anyone knows of common problems i could really use some help!!!!!

 

[StalkerStang]

Obviously a bunch of fuel is getting into the motor.

No DTC's have been set yet?

 

[jcochran1]

not according to my code reader, but that doesn't mean aren't any. i was told the engine was full of anti freeze but after further diagnoses i believe it is fuel.

 

[red horse 96]

I think you have actually drive the car for few minutes to saet any DTC's.

 

[jcochran1]

you can not drive the car, once you get it started if you put it in gear it dies and engine locks up! it has heavy dark smoke when it is running. if the head gaskets are leaking wouldn't it be White smoke? ANY and ALL help is greatly appreciated. I am a chevy guy who bought his first FORD and don't know much about these things

 

[Markstang]

i wonder if one or more injectors is stuck on

 

[jcochran1]

i'm hoping thats what it is, just curious on how to diagnose them. do i pull the upper plenum, remove the fuel rail and then key up car and see if injectors stay on? also i know on most gm's if an injector is stuck you can tap on it and usually it will temporarily stop leaking, will that work on my mustang?

 

[Markstang]

when the engine's running the wires to the injectors should pulse. you can put a "noid light" on the wire and it'll blink with every pulse. if it doesnt, its either the wrong wire or the injector driver in the computer is toast.

 

[MasterX]

i wonder if this could possibly be someones blunder putting in big injectors and not tuning it, or else setting the injectors to a really high setting and not knowing any better.

If i were to add 60lb injectors to my car, might something simular happen?

 

[Stanger00]

Try the noid lights that will make sure you have a signal going into the injector. You can get a drop test for the injector but normally from snap on. This will plug into the injector and run a cycle through the injector. Be careful. Too much fuel can wash out rings!

 

[gearheadhick429]

this happened to our ranger. check the wire with a tester. if it is not pulsing the computer is fried. id stop running the engine. you are going to toast the bearings with all that fuel that has gotten past the rings not to mention the cylinder wall damaged by the "washed wall" effect. get your stuff in order, run it for as little as possible and get the injectors diagnosed. either stuck on or some jack put oversized ones on. then change the oil. preferably twice to flush that **** out of there after its fixed.

locked up means seized, as in engine will not turn over even with the starter. i hope this isnt what you mean.

 

[jcochran1]

so if the ECM is toast, can i buy a used one or an oe ? and will i have to have ECM programmed? i know gm's have to be programmed!:?:

 

[jcochran1]

if noid light pulses then my injectors are open and no pulse ECM? thanks everyone i'm gonna get it figured out saturday!! WISH ME LUCK I'LL NEED IT!!!:smilie

 

[gearheadhick429]

if it pulses you can thank the lord its not your ecm. make sure all the plugs are firing as they should. i had the coil go weak on my mustang. replaced it with new accel coil from AM and it was better than new.