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Okay so its a v6 3.8l auto 2001 mustang. All at once seemed to lose power and noticed it was like 3 qts of oil low and the AC stopped working that day too. Literally all in one day. Anyways read codes at auto zone had a "mechanic" chk it out and cylinder 1and5 had no spark. Replaced coil pack and 6 dbl plat sparks and still the same. Maybe worse. No spark from the same two cyl and the car won't hardly go without it being on a downhill. Very loud and jumpy. Ideling bad. The works. Has anyone else ever had this prob?
 

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Okay so its a v6 3.8l auto 2001 mustang. All at once seemed to lose power and noticed it was like 3 qts of oil low and the AC stopped working that day too. Literally all in one day. Anyways read codes at auto zone had a "mechanic" chk it out and cylinder 1and5 had no spark. Replaced coil pack and 6 dbl plat sparks and still the same. Maybe worse. No spark from the same two cyl and the car won't hardly go without it being on a downhill. Very loud and jumpy. Ideling bad. The works. Has anyone else ever had this prob?
Did the "mechanic" check the crankshaft position sensor?
I'm not familiar with the ignition system on those, but you need to figure out what powers or triggers the coil when it needs to fire. That may be the problem.
Being that low on oil could have caused some engine damage. :(
 

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Honestly I don't know. I've been doing some researching and think that it could possibly be either the wiring to the coil pack or the ignition module. But then again who knows. I'm going to go out to pick n pull and see if I can find that module in case that's not the problem I don't end up wasting the money on buying a new one.
 

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Obviously I didn't do enough research cuz now I'm under the impression that I don't hv a ignition module that its either built in or has something to do with the pcm? But I did keep on hearing about that crankshaft sensor. Where is that at? I'd heard of a camshaft sensor and recently had someone repair the coolant thing apparently had some sort of leak and they repaired it with some kind of black tar looking stuff that hardened and stopped the leak. I wonder if that might have gotten on the cam sensor cuz one of the posts I found said it was near the coolant reservoir and if it got dirty could cause it to malfunction. I don't know. I'm so internet researched out Im about to the point to give up.
 

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99's had an IM but i haven't seen one on '00+...i've looked on my parts computer at work and on a 99 i can get a part number for one, but none on anything newer. It has to be integrated somewhere. what were the codes that where being thrown..i'd assume there was more besides those two misfires
 

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Well the code the guy at cardovas wrote down just yesterday was a p0351. That's the only code he wrote down, not sure about whether it has any others. And I was mistaken about the IM it doesn't have one. I just don't understand how it could all at once have such and so many problems.
 

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Well the code the guy at cardovas wrote down just yesterday was a p0351. That's the only code he wrote down, not sure about whether it has any others. And I was mistaken about the IM it doesn't have one. I just don't understand how it could all at once have such and so many problems.
We had a 2001 taurus at work with the same problem,,the injector driver is built in the PCM computer,,not for sure on the mustang on that year..We replace the computer and had it programmed and it fixed it..Also if the car misfiring real bad the PCM will not let the A/C engage,,on the tauruses anyway..Dont drive it to much misfiring like that ,,it will toast the cataylitic convertors pretty quick
 

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Yeah the AC was another thing to go that day. All in one day I swear. It was like I got outta Walmart turned the key and it didn't wanna start. I tried again and it kinda seemed slow and low but started. I checked my oil 3 quarts low! The AC quit working and slowly but surely by the end of the night u wasn't making it down the highway home without turning my flashers on so I didn't get rear ended. But I'm not driving it now. To auto one and cardovas a cpl days ago but that's it. I found my can and crankshaft sensors. They are both covered in oil sludge. I'm gonna try to clean em up and see if that has an effect. Gonna look for a new crankshaft sensor tomorrow since its only like 29 bucks and two bolts to install.

---------- Post added at 06:00 PM ---------- Previous post was at 05:56 PM ----------

Can I ask another question? I'm wondering since I have 6 fuel injectors and according to a diagram I'd come across it looks as though they are strategically placed along the engine almost as if to represent the cylinder they supply. Are the location to the cylinder they are nearest have anything to do with that being the cylinder they go to? For instance if this fuel injector is on cylinder 1 it supplies fuel to cylinder 1. And so on and so fourth?
 

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Yeah the AC was another thing to go that day. All in one day I swear. It was like I got outta Walmart turned the key and it didn't wanna start. I tried again and it kinda seemed slow and low but started. I checked my oil 3 quarts low! The AC quit working and slowly but surely by the end of the night u wasn't making it down the highway home without turning my flashers on so I didn't get rear ended. But I'm not driving it now. To auto one and cardovas a cpl days ago but that's it. I found my can and crankshaft sensors. They are both covered in oil sludge. I'm gonna try to clean em up and see if that has an effect. Gonna look for a new crankshaft sensor tomorrow since its only like 29 bucks and two bolts to install.

---------- Post added at 06:00 PM ---------- Previous post was at 05:56 PM ----------

Can I ask another question? I'm wondering since I have 6 fuel injectors and according to a diagram I'd come across it looks as though they are strategically placed along the engine almost as if to represent the cylinder they supply. Are the location to the cylinder they are nearest have anything to do with that being the cylinder they go to? For instance if this fuel injector is on cylinder 1 it supplies fuel to cylinder 1. And so on and so fourth?
 

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............and you forgot your reply mymustang. ;) :lol:
 

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............and you forgot your reply mymustang. ;) :lol:
I was gonna to reply on the injector question,,but someone already has,,then i tried to erase it ,,Im still pretty stupid on a PC ,,Ive only been on a computer for about a year,,other than the one at work,,I still dont know how to post and send pictures..I had to get a 8 year old niece to set me up with email,FB and other stuff..Once i tried to send a pic to here and it ended up on my FB wall,,LOL..So ill stick to typing words for now..Im way behind with technology,,other than car stuff
 

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Okay so I took the coil pack back since obviously that's not the problem. I was gonna go ahead and grab a crankshaft sensor but the guy at auto zone talked me outta it. He said my code doesn't hv anything to do with it. (P0351) and then he proceeded to tell me my ignition module. I argued I didn't hv one and he insisted I did cuz the computer would tell him if it wasn't. So I end up buying a forty f'n dollar Haynes manual and I(we) were right. (Thanks for teaching me that) but I'm so in live with the book. I read the electric section first and then decided to just start from the beginning. I feel 100% more informed than I did a week ago. But anyways so what are the odds that a major tune up would solve this problem?
 

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Discussion Starter #14
You see I found five major symptoms that my car is exhibiting and when comparing the list of possible causes in each symptom I found that they each share these possible culprits; clogged fuel filter/foreign matter in fuel; vacuum leak @ intake manifold; fuel injection or engine control system malfunction; low or uneven cylinder compression.
 

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You have a multiple missfire code correct. Nevermind a po351 is a coil problem get a ohms meter and see what your getting for power also wiring and your pcm maybe at fault.
 

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Discussion Starter #16
I'm just finding out that the sparks replaced were auto lite 605 copper and not dbl plat. 2 were dbl plat but the other 4 are copper. This could cause some issue no? Being that the heat range isn't the same?
 

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sducki88 said:
I'm just finding out that the sparks replaced were auto lite 605 copper and not dbl plat. 2 were dbl plat but the other 4 are copper. This could cause some issue no? Being that the heat range isn't the same?
Depending on how old they are but i highly doubt it.
 

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Discussion Starter #18
I thought maybe the mixing of the dbl plat and copper plugs might hv been an issue. I was hoping anyways.
 

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I thought maybe the mixing of the dbl plat and copper plugs might hv been an issue. I was hoping anyways.
You said no spark to 2 plugs,,if its not the coil pack,,its got to be the computer or the wires in between,,or the connection at the coil pack,,(primary side),,You can ohm the wire harness from the coil pack to the computer,,and see if any of the wires are broken,,if not probably the computer,,Its not the crank sensor because you have 2 specific cylinders not responding,,if the crank sensor was bad it would be random on all cylinders,,if you do replace the computer,,the car wont start because it needs programming ,you have to take it somewhere like the dealership or someone that has the ability to program it
 
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