5.0 Help in a truck

[EHardy1971]

Originally Posted by militarymustang88gt

i would really almost put money on a ground issue or wiring issue like a short in the positive or neg going to the coil pack.

I know what you're saying,BUT.....

Originally Posted by StangChik

it will fire at the plug....but when we try to check the timing, we can't get a read.

.....it still sounds like timing to me,I've had a few jump time on me before. I could be wrong,but a compression test now will be a good indicator if it's in fact valve timing or not.

[EHardy1971]

Oh,I forgot to add,that if you're trying to check it with a timing light,and it's jumping all over the place,you need to pull the SPOUT connector out.

[StangChik]

not sure what the spout is....I'm still fuzzy on some of this stuff.

As far as the wiring issue you are thinking, I keep leaning towards that too, because the connector on the coil plug is gone and it has wires with end terminals plugged into it. I'm not sure that stuff is correct.

I can't remember if he checked the compression on it after it went down, but i know he did before.

[EHardy1971]

The SPOUT connector is going to be a little black,or gray square thing plugged into a socket on the wiring harness near the distributor on a wiring pigtail.

[militarymustang88gt]

the colors for the connector on the distributor should be from the top to bottom: blue yellow red (another wire cant tell what color) then black at the very bottom.

[StangChik]

its the connector on the coil not the dist. We have had 2 wires running to it, and they are brown and yellow i think.

What what worries me is the manual i have shows 3 wires.

[EHardy1971]

Originally Posted by StangChik

What what worries me is the manual i have shows 3 wires.

That's because with a factory tach,you'll have 2 wires coming off the negative/(-) side of the coil. I have a '95 F-150,therefore both Haynes and Chiltons that will cover your wiring schematic.BRB

[StangChik]

so we are missing a wire then?

[militarymustang88gt]

oh get some kind of material and stick it between the two prongs. if you dont have plastic or anything and it is just sitting on the connectors it will collapse the field inside the coil before it has the dwell time it needs.

[militarymustang88gt]