05-SC-GT

Here is what is going on and stuff I checked. Thanks for any help.


I am having a no start problem with car. It turns over and fuel pump is working but it won't fire over.

I have tested the Coil and we are getting 12 volts on both sides of it. The Red/Light Green is on the Positive side and Tan/Yellow is on the Negative side. We are getting a VERY faint spark from the coil when turning the ignition over, we seen this by plugging in a spark plug and watching it. It has an MSD Blaster 2 Coil that was on car before troubleshooting and since we have put a new Blaster 2 and now a Blaster 3 coil on it and all the same results. I have also changed the TFI module and nothing.

I am having very faint spark.


The cap and rotor are new, the TFI module is new, we used a new Blaster 2 Coil, and now it has a new Blaster 3 coil on it. We checked the plug wires which are new Ford Racing wires and a stock set from Autozone with same results. We went and checked all the fusible links and most of the grounds.

We are still getting 12 volts on both sides the coil and I am not sure if that is supposed to be like that since 1 side is marked POSITIVE and the other side is marked GROUND.



did the resistance test and everything checked out good.

I installed a MSD 6AL and getting a nice spark when key is turned on and when stop cranking but when cranking there is no spark.

Also there is 12 volts to the injectors red wire but there are not working either. I have went through a check list I found on the internet and did all the testing but won't start.

So far I have checked, changed, or tested:
1. coil - Installed new MSD Blaster 2 Coil and then again with a Blaster 3 Coil
2. TFI Module - Installed a new TFI Module on distributor
3. MSD 6AL - car was using factory ignition for other coils but I installed a new MSD 6AL to Blaster 3 Coil, MSD Box is working
4. Spark Plug Wires - checked resistance on a set of FRPP spark plug wires and everything checked out fine, wires are 3 months old
5. Ignition switch - I pulled computer from panel and disconnected plug and tested 12 volts to injectors and coil through wiring harness, everything checked good
6. Fuel Pump - checked and verified it was working
7. Inertia Switch - checked and verified switch was good
8. TPS Sensor - checked voltage and was at 1.4 volts so adjusted to .95 volts

wrenchturner75

damn you just about covered everything, but im gonna throw this out there, a faulty magnetic pick-up can also give you a no-start problem. the pick-up is located inside the dizzy right below the rotor. as far as testing it to see if its bad ill be honest i know of no way. hope this helps!

Timspony

...Can you take the MSD out and install the stock ignition? ...My MSD went bad once, put the car back to stock & fired right up! ...MSD had a bad fuse

88E303stanggt

I agree man, I don't really have any new ideas. In my personal experience, every problem like them has been something super obvious that I was overlooking. I read your post, and I know this is amateur, but did you check the actual plugs out too? Leak in fuel lines? Any chance your chain jumped? Vacuum leak? But damn dude, you checked about everything I could think off. There's not much more to our ignition system that you HAVEN'T checked. Sorry I can't be more of a help.

FivePointOhh

what did you do prior this issue happening? was it ever running before? or did you obtain this car not running and unsure of its history?

jockoal

Definitely check the Magnetic-Pick-Up!!!! I had same problem, and also replaced the TFI Module with a spare, and to no avail..Turned out that the Pick-up failed after only 3,000miles of usage..The MSD distributor part # is 8456 and the pick-up # is PRD-18987..MSD if you are listening, this does not speak well for your product!!! AL