• Mustang Forums
  • 1996 - 2004 SN95 Mustang -General/Talk-
  • SN95 4.6L Mustang Tech

00 GT with electrical problems

  • Thread starter Thread starter BLOWN00GT
  • Start date Start date Feb 6, 2008
B

BLOWN00GT

New Member
Aug 16, 2006
55
0
0
Feb 6, 2008
#1
  • Feb 6, 2008
  • #1
I am having problems with my 2000 GT. The #3 and #5 plugs are not firing. So i did as anyone would do and moved the coil packs around. It is still the same cylinders even with different coil packs. Is there anything that could be unhooked or screwed up...

what it isnt
-The plugs are brand new and have no(0) miles on them. I even swapped the new ones with some old ones. Still its not that easy, it still misses out of #3 and #5.

Here is what is done to the car. Not that most of this has anything to do with it. Vortec supercharger and 100 shot of nitrous. That combo equals no good to the bearings and I had to pull the motor. I installed a forged stroker kit with all the bottom end fixins'. So even though i didnt know anything about motors before this I learned fast as i needed too, since no one in my town knows anything about the modular motor. I also put on Mac long tube headers, Mac prochamber and Mac 2.5" catback exhaust. Also installed an aluminum flywheel.

After the 14 month rebuild i started the car up and it ran like a rapped ape up a tree. Although it burned more oil than an '85 Mack. So then i tore it back down to do the valve seals. Well I fixed the oil problem(doesn't smoke anymore). But then there was what seemed to be an exhaust leak. After further inspection I noticed those 2 plugs were not firing.

What seems strange is that anytime you would normally unplug a coil pack the motor would idle like crap. Which is expected. But with these two plugs not firing the motor does not idle bad. it even drives down the road but without the power. I am not sure if it idles "descent" because the plugs are on opposite sides or what is going on. The Check Engine light is also on and blinks after a few minutes of running. So obviously the car knows that something is wrong. So does one of those little computer things you can buy at sears. it said #3 and #5 are missing. which was no surprise to me. I wish i could just get this car going down the track again...

So is there anyone with the same problem or anyone with a solution?

Let me know! thanks

incase anyone cares...

13.007@116 mph with a 2.2 second 60' time.(Street tires made for wear not for track) this was before the rebuild and exhaust. just the blower and 100 shot upon entry of 2nd gear!
 
You must log in or register to reply here.

Similar threads

M
Help! 2003 GT misfire when hot
  • Modular03
  • Feb 10, 2026
  • SN95 4.6L Mustang Tech
Replies
4
Views
415
SN95 4.6L Mustang Tech Feb 13, 2026
Mustang5L5
S
Mach 1 iac valve in a 4.6 gt
  • solodriverz
  • Jun 3, 2026
  • SN95 4.6L Mustang Tech
Replies
1
Views
96
SN95 4.6L Mustang Tech Jun 5, 2026
squeak93
S
New guy- first Stang- I love it !!
  • smid333
  • Mar 22, 2026
  • The Welcome Wagon
Replies
5
Views
188
The Welcome Wagon Mar 23, 2026
smid333
S
K
Resolved Weird sound coming from a freshly rebuilt 5.0L
  • karhoot
  • Jun 24, 2026
  • Fox 5.0 Mustang Tech
Replies
7
Views
212
Fox 5.0 Mustang Tech Jun 27, 2026
Mac131
K
Engine 2000 Mustang GT - Fuel issue post-blown spark plug repair
  • kenster1092
  • Feb 26, 2026
  • SN95 4.6L Mustang Tech
Replies
4
Views
381
SN95 4.6L Mustang Tech Mar 10, 2026
kenster1092
K
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1996 - 2004 SN95 Mustang -General/Talk-
  • SN95 4.6L Mustang Tech
Menu
Log in

Register

  • Forums
  • What's new
  • Media
  • Resources
  • Contact
  • Sponsor
X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?

X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?