LeftHander
New Member
- Joined
- Sep 20, 2013
- Messages
- 25
- Reaction score
- 10
- Points
- 3
- Location
- Milpitas, CA
- Vehicle Year
- 1996
- Make / Model
- Ford Ranger SC
- Engine Type
- 3.0 V6
- Engine Size
- 3.0
- Transmission
- Manual
- 2WD / 4WD
- 2WD
I've got a 2000 short cab/short bed 3.0L 4x4 auto that won't quite start. Been sitting with a bad trans, but ran nice.
Made the mistake of taking off the coil to swap onto my '96 to diagnose a rough engine. The 2000 coil was mounted backwards, so when I put it back I rotated it to the correct position, and it wouldn't start. Plug wires were now wrong. Re-did the plug wires by copying the '96 3.0L.
No start. Checked the book for wires, and it agreed with the other engine.
P.O. had the heads replaced, H2o pump, and other stuff. I wondered if they might have installed the CPS out of phase to match the coil (or vice versa), so I swapped that 180*, and no change. Played with that for a while, and am no longer sure what it was originally set at. Now have it where it belongs, according to the book.
Discovered that it has no connection to the ignition system. Computer and crank sensor is all they use.
So, swapped in my old '96 computer, and get the same result. Sounds the same, coughs and bangs a bit, like it wants to start, but sounds like it is too far advanced.
So, any suggestions? The only thing I haven't tried yet is a new crank trigger sensor. NOT taking that off the '96!
Judging by the '96 computer (which came off a running engine), that is not the problem, but I fail to see how the trigger could be bad. If it wasn't working, would the ignition even fire?
Made the mistake of taking off the coil to swap onto my '96 to diagnose a rough engine. The 2000 coil was mounted backwards, so when I put it back I rotated it to the correct position, and it wouldn't start. Plug wires were now wrong. Re-did the plug wires by copying the '96 3.0L.
No start. Checked the book for wires, and it agreed with the other engine.
P.O. had the heads replaced, H2o pump, and other stuff. I wondered if they might have installed the CPS out of phase to match the coil (or vice versa), so I swapped that 180*, and no change. Played with that for a while, and am no longer sure what it was originally set at. Now have it where it belongs, according to the book.
Discovered that it has no connection to the ignition system. Computer and crank sensor is all they use.
So, swapped in my old '96 computer, and get the same result. Sounds the same, coughs and bangs a bit, like it wants to start, but sounds like it is too far advanced.
So, any suggestions? The only thing I haven't tried yet is a new crank trigger sensor. NOT taking that off the '96!
Judging by the '96 computer (which came off a running engine), that is not the problem, but I fail to see how the trigger could be bad. If it wasn't working, would the ignition even fire?