2001 3.8 V6 Mustang Will Not Start * Need Help Bad *

Jeff_Dallas · January 14th, 2008, 10:04 AM

OK been working on this for days. my card died a few days ago when driving. got it home and it would not start, kind of sounds like it wants to but does not. there are new wires and plugs on the car, and have been for sometime. i checked all the fuses and they all tested good. checked the fuel pump and i am getting fuel. i checked for coil pack and found a little problem. the coil pack on my v6 has 3 across the top and 3 across the bottom.

Example:

O O O
O O O

O(have spark) O(have spark) O(NO SPARK)
O(have spark) O(have spark) O(NO SPARK)

went and got a new coil pack, and the same thing .Any one have any ideas, i have no clue anymore. i thought it was the coil pack.

stephen · January 14th, 2008, 11:52 AM

Originally Posted by Jeff_Dallas

OK been working on this for days. my card died a few days ago when driving. got it home and it would not start, kind of sounds like it wants to but does not. there are new wires and plugs on the car, and have been for sometime. i checked all the fuses and they all tested good. checked the fuel pump and i am getting fuel. i checked for coil pack and found a little problem. the coil pack on my v6 has 3 across the top and 3 across the bottom.

Example:

O O O
O O O

O(have spark) O(have spark) O(NO SPARK)
O(have spark) O(have spark) O(NO SPARK)

went and got a new coil pack, and the same thing .Any one have any ideas, i have no clue anymore. i thought it was the coil pack.

The two that have no spark come off from a common coil secondary. If it isn't the coil most likely it is a bad wire to one of those terminals. It could be as simple as a plug wire off the plug. You might check the resistance in the affected plug wires.

Juggalo_X · January 14th, 2008, 11:54 AM

Originally Posted by stephen

The two that have no spark come off from a common coil secondary. If it isn't the coil most likely it is a bad wire to one of those terminals. It could be as simple as a plug wire off the plug. You might check the resistance in the affected plug wires.

+1 test your coil with a ohm meter. but i wouldn't even bother replace the coil and be done. its bad.

94v6blkndred · January 14th, 2008, 12:09 PM

check your computer maybe too...my car was all jacked up and it turned out to be my computer...prob not that problem but just a precaution

Jeff_Dallas · January 14th, 2008, 12:14 PM

i replace the coil pack with a new one but it is doing the same as the old. the last two. one on top and one on bottom, does not get any spark. to the plug, the wires have been tested and moved to one of the ones the other plugs, but still the same problem, so i thought ok, lets also move the plug over. well the wire and plug work when i swapped them out with the other, but still have the same issue. the last two on the coil pack don't fire.

94v6blkndred · January 14th, 2008, 12:20 PM

have your computer check mane.....maybe its shorted and not sending anything to the coils? idk...like i said my computer messed up my car had major missfiring....told my #6 injector to stay open...im dumb but trying to help

stephen · January 14th, 2008, 01:37 PM

Originally Posted by Jeff_Dallas

i replace the coil pack with a new one but it is doing the same as the old. the last two. one on top and one on bottom, does not get any spark. to the plug, the wires have been tested and moved to one of the ones the other plugs, but still the same problem, so i thought ok, lets also move the plug over. well the wire and plug work when i swapped them out with the other, but still have the same issue. the last two on the coil pack don't fire.

If the new coil didn't change things most likely it isn't the coil. The wires and plugs don't seem to be the problem either. The crank angle sensor could be bad, though I don't know that this should make some cylinders fire and not others. The crank angle sensor is an easy part to change. It's near the toothed ring at the crank pulley. From under the car remove two small bolts and a connector.

Perhaps the computer is bad and putting out pulses to two out of three coils. I don't know how to test that or how much a new one costs. It might be worth having someone look at it with the right test equipment.

Juggalo_X · January 14th, 2008, 01:47 PM

test your Coil harness. it has one VCC and 3 ground. each pair of secondaries have there own ground wire. sounds like it has a open ground for a pair of your secondaries. ill see if i can get yah the wire to test for the secondaries that are dead.

Juggalo_X · January 14th, 2008, 01:52 PM

Pink/White i beleive is the ground for the secondaries on your coil that are not firing.

Jeff_Dallas · January 14th, 2008, 03:04 PM

thanks, did find some wiring stuff, for the plugs and coil pack. and see the pnk/wht so when i get home i will test out that wire. so your saying the 3 out 4 wires that are in the harness are grounds, and only one is the hot?

[IMG]file:///C:/DOCUME%7E1/JEFF%7E1.DAM/LOCALS%7E1/Temp/moz-screenshot-5.jpg[/IMG]
[IMG]file:///C:/DOCUME%7E1/JEFF%7E1.DAM/LOCALS%7E1/Temp/moz-screenshot-6.jpg[/IMG]

Jeff_Dallas · January 14th, 2008, 03:04 PM

thanks, did find some wiring stuff, for the plugs and coil pack. and see the pnk/wht so when i get home i will test out that wire. so your saying the 3 out 4 wires that are in the harness are grounds, and only one is the hot?

Jeff_Dallas · January 15th, 2008, 03:16 PM

ok no Pink/White, i forgot what colors they are but will list them wed, but guessing they go from the coil pack right to the pcm, does a pcm go out that easy, and is there any others signs that a pcm is going bad? or any other ideas why there is no spark to the last two on the coil pack. is there a way to test the leads from the clip that goes to the coil pack to the pcm, other them ohm out the line. is there a volt reading ?

stephen · January 15th, 2008, 03:17 PM

Wondered if you had any luck? I had a perhaps similar problem with no spark on some wires and replaced the coil, wires, and crank angle sensor. This did fix it, but it was necessary to crank the engine for some time to get it started again. Perhaps it was flooded after the ignition problem.

Juggalo_X · January 16th, 2008, 10:19 AM

have you tried to replace the coil pack?

GreenFaleen · January 16th, 2008, 10:26 AM

1-4
2-5
3-6

if any two of those have no spark together it is your coil

Juggalo_X · January 16th, 2008, 10:33 AM

Originally Posted by GreenFaleen

1-4
2-5
3-6

if any two of those have no spark together it is your coil

If its not the coil use a test light and crank the engine and test all3 of the coil harness ground wires with the harness vcc. the test light should flash when cranking for all 3 grounds.

GreenFaleen · January 16th, 2008, 10:36 AM

well parallel plugs are on the same coil the chances of it not being ethe coil are real slim

stephen · January 16th, 2008, 10:41 AM

Originally Posted by Juggalo_X

If its not the coil use a test light and crank the engine and test all3 of the coil harness ground wires with the harness vcc. the test light should flash when cranking for all 3 grounds.

He said he replaced the coil and saw no difference.

Good idea for testing the inputs. Sort of like using a noid light to check injector inputs.

Juggalo_X · January 16th, 2008, 10:48 AM

Originally Posted by stephen

He said he replaced the coil and saw no difference.

Good idea for testing the inputs. Sort of like using a noid light to check injector inputs.

has to be harness or pcm then....

Test the Harness like i instructed with a test light this will tell your if you have an open ground.

GreenFaleen · January 16th, 2008, 10:51 AM

did he replace the right coil? also coils can be bad out of the box

January 14th, 2008, 10:04 AM	#1
Jeff_Dallas Newbie Join Date: Mar 2007 Posts: 19 iTrader: 0 reviews	2001 3.8 V6 Mustang Will Not Start * Need Help Bad * OK been working on this for days. my card died a few days ago when driving. got it home and it would not start, kind of sounds like it wants to but does not. there are new wires and plugs on the car, and have been for sometime. i checked all the fuses and they all tested good. checked the fuel pump and i am getting fuel. i checked for coil pack and found a little problem. the coil pack on my v6 has 3 across the top and 3 across the bottom. Example: O O O O O O O(have spark) O(have spark) O(NO SPARK) O(have spark) O(have spark) O(NO SPARK) went and got a new coil pack, and the same thing .Any one have any ideas, i have no clue anymore. i thought it was the coil pack.

January 16th, 2008, 10:26 AM	#15
GreenFaleen MM's Resident Ricer 2006 Scion tC 13.001@113 Join Date: Nov 2006 Location: Raleigh/Lenoir, NC Posts: 9,880 Blog Entries: 2 iTrader: 1 reviews	1-4 2-5 3-6 if any two of those have no spark together it is your coil __________________ Scion Tc Turbo - 9psi 297whp 287wtq 2500lbs :p MM 4 Banger club: Senior Ricer NCMM #9 "Horsepower sells cars, torque wins races." -Carroll Shelby

January 16th, 2008, 10:36 AM	#17
GreenFaleen MM's Resident Ricer 2006 Scion tC 13.001@113 Join Date: Nov 2006 Location: Raleigh/Lenoir, NC Posts: 9,880 Blog Entries: 2 iTrader: 1 reviews	well parallel plugs are on the same coil the chances of it not being ethe coil are real slim __________________ Scion Tc Turbo - 9psi 297whp 287wtq 2500lbs :p MM 4 Banger club: Senior Ricer NCMM #9 "Horsepower sells cars, torque wins races." -Carroll Shelby

January 16th, 2008, 10:51 AM	#20
GreenFaleen MM's Resident Ricer 2006 Scion tC 13.001@113 Join Date: Nov 2006 Location: Raleigh/Lenoir, NC Posts: 9,880 Blog Entries: 2 iTrader: 1 reviews	did he replace the right coil? also coils can be bad out of the box __________________ Scion Tc Turbo - 9psi 297whp 287wtq 2500lbs :p MM 4 Banger club: Senior Ricer NCMM #9 "Horsepower sells cars, torque wins races." -Carroll Shelby

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January 14th, 2008, 12:09 PM	#4
94v6blkndred Hardcore Enthusiast 02 Turboed Saleen Clone faster than my v6 Join Date: Mar 2007 Location: Houston, TX Posts: 1,604 iTrader: 0 reviews	check your computer maybe too...my car was all jacked up and it turned out to be my computer...prob not that problem but just a precaution

January 14th, 2008, 12:14 PM	#5
Jeff_Dallas Newbie Join Date: Mar 2007 Posts: 19 iTrader: 0 reviews	i replace the coil pack with a new one but it is doing the same as the old. the last two. one on top and one on bottom, does not get any spark. to the plug, the wires have been tested and moved to one of the ones the other plugs, but still the same problem, so i thought ok, lets also move the plug over. well the wire and plug work when i swapped them out with the other, but still have the same issue. the last two on the coil pack don't fire.

January 14th, 2008, 12:20 PM	#6
94v6blkndred Hardcore Enthusiast 02 Turboed Saleen Clone faster than my v6 Join Date: Mar 2007 Location: Houston, TX Posts: 1,604 iTrader: 0 reviews	have your computer check mane.....maybe its shorted and not sending anything to the coils? idk...like i said my computer messed up my car had major missfiring....told my #6 injector to stay open...im dumb but trying to help

January 14th, 2008, 01:47 PM	#8
Juggalo_X I Post Entirely Way Too Much 2001 Mustang 232/CBR600 14+@Slow Join Date: Jan 2007 Location: South Western Ontario Posts: 6,688 iTrader: 0 reviews	test your Coil harness. it has one VCC and 3 ground. each pair of secondaries have there own ground wire. sounds like it has a open ground for a pair of your secondaries. ill see if i can get yah the wire to test for the secondaries that are dead.

January 14th, 2008, 01:52 PM	#9
Juggalo_X I Post Entirely Way Too Much 2001 Mustang 232/CBR600 14+@Slow Join Date: Jan 2007 Location: South Western Ontario Posts: 6,688 iTrader: 0 reviews	Pink/White i beleive is the ground for the secondaries on your coil that are not firing.

January 14th, 2008, 03:04 PM	#10
Jeff_Dallas Newbie Join Date: Mar 2007 Posts: 19 iTrader: 0 reviews	thanks, did find some wiring stuff, for the plugs and coil pack. and see the pnk/wht so when i get home i will test out that wire. so your saying the 3 out 4 wires that are in the harness are grounds, and only one is the hot? [IMG]file:///C:/DOCUME%7E1/JEFF%7E1.DAM/LOCALS%7E1/Temp/moz-screenshot-5.jpg[/IMG] [IMG]file:///C:/DOCUME%7E1/JEFF%7E1.DAM/LOCALS%7E1/Temp/moz-screenshot-6.jpg[/IMG]

January 15th, 2008, 03:16 PM	#12
Jeff_Dallas Newbie Join Date: Mar 2007 Posts: 19 iTrader: 0 reviews	ok no Pink/White, i forgot what colors they are but will list them wed, but guessing they go from the coil pack right to the pcm, does a pcm go out that easy, and is there any others signs that a pcm is going bad? or any other ideas why there is no spark to the last two on the coil pack. is there a way to test the leads from the clip that goes to the coil pack to the pcm, other them ohm out the line. is there a volt reading ?

January 15th, 2008, 03:17 PM	#13
stephen Hardcore Enthusiast Join Date: Feb 2007 Posts: 1,262 iTrader: 0 reviews	Wondered if you had any luck? I had a perhaps similar problem with no spark on some wires and replaced the coil, wires, and crank angle sensor. This did fix it, but it was necessary to crank the engine for some time to get it started again. Perhaps it was flooded after the ignition problem.

January 16th, 2008, 10:19 AM	#14
Juggalo_X I Post Entirely Way Too Much 2001 Mustang 232/CBR600 14+@Slow Join Date: Jan 2007 Location: South Western Ontario Posts: 6,688 iTrader: 0 reviews	have you tried to replace the coil pack?

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