Older ranger starting issues.
#1
Older ranger starting issues.
Ok so I have a 94 ranger, alot of parts were replaced and it didn't want to start, I have found out the issue for anyone else who has the same problem. There is a little grey connector called a spout if you unplug it and it runs thats the problem. It allows the computer to advance the timing for slightly better performance.
#2
Yes, 1994 and earlier V6 Rangers used TFI spark module with a distributor
It will have a SPark OUT, SPOUT, connector that can be unplugged to allow you to set BASE SPARK TIMING
Prior to computer control distributors needed Vacuum Advance to adjust spark timing for engine LOAD
To set base spark timing on this system you would UNHOOK the Vacuum Advance, then set the timing at 10 or 12deg BTDC
When Vacuum Advance was removed and replaced by Computer LOAD advance, the SPOUT connector was used so you could disable LOAD advance, so you could set base spark timing
And on either you need to reconnect LOAD Advance or engine will stumble on quick acceleration because there is no LOAD advance
The distributor can still do RPM advance, the springs and weights inside it, so slow acceleration would be OK, but if you tried to accelerate fast, so heavier LOAD on the engine, it will stumble
Disconnect SPOUT
Time WARM engine to 10 or 12 deg BTDC
Reconnect SPOUT
Should now see timing at 18-22deg BTDC
If its not in that range then computer, SPOUT wire, or TFI module is not working
It will have a SPark OUT, SPOUT, connector that can be unplugged to allow you to set BASE SPARK TIMING
Prior to computer control distributors needed Vacuum Advance to adjust spark timing for engine LOAD
To set base spark timing on this system you would UNHOOK the Vacuum Advance, then set the timing at 10 or 12deg BTDC
When Vacuum Advance was removed and replaced by Computer LOAD advance, the SPOUT connector was used so you could disable LOAD advance, so you could set base spark timing
And on either you need to reconnect LOAD Advance or engine will stumble on quick acceleration because there is no LOAD advance
The distributor can still do RPM advance, the springs and weights inside it, so slow acceleration would be OK, but if you tried to accelerate fast, so heavier LOAD on the engine, it will stumble
Disconnect SPOUT
Time WARM engine to 10 or 12 deg BTDC
Reconnect SPOUT
Should now see timing at 18-22deg BTDC
If its not in that range then computer, SPOUT wire, or TFI module is not working
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19mustang69
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05-07-2018 08:04 AM