Post by: cavemann on November 02, 2018, 12:51:18 PM
I got the codes and they point to "transmission" but I had one mechanic look and he said starter safety switch or the main PCIM. It only happens about once a week and he said he can't tell without it on his scope while it's doing it. My dilemma: replace starter safety switch and hope it's not PCIM? Or wait until it's more consistent but risk it finally just not starting period.
Anyone had a similar issue? I know its a stretch.
Post by: 92xj on November 02, 2018, 12:52:45 PM
Post by: Woodchuck on November 02, 2018, 01:09:05 PM
Neutral safety switch?Start here. Is also the trans range switch. :twocents:
Post by: jackelope on November 02, 2018, 01:12:00 PM
Never heard of a starter safety switch or a Pcim. Maybe a PCM? Almost guarantee it’s not a PCM.
What codes does it have? There would be a p0700 code if it were transmission related but that would only mean there are fault codes stored in the transmission control module that need to be checked.
Post by: 92xj on November 02, 2018, 01:27:09 PM
They don’t have neutral safety switches. Transmission range sensor.
Never heard of a starter safety switch or a Pcim. Maybe a PCM? Almost guarantee it’s not a PCM.
What codes does it have? There would be a p0700 code if it were transmission related but that would only mean there are fault codes stored in the transmission control module that need to be checked.
I admit I'm not up to speed on 2011 f150s, but it seems that they sell NSS for them :dunno:
https://www.partsgeek.com/catalog/2011/ford/f150/transmission/neutral_safety_switch.html
Post by: cavemann on November 02, 2018, 01:30:57 PM
Either way, seems replacing that is best bet and not likely PCM??
Post by: jackelope on November 02, 2018, 01:43:09 PM
They don’t have neutral safety switches. Transmission range sensor.
Never heard of a starter safety switch or a Pcim. Maybe a PCM? Almost guarantee it’s not a PCM.
What codes does it have? There would be a p0700 code if it were transmission related but that would only mean there are fault codes stored in the transmission control module that need to be checked.
I admit I'm not up to speed on 2011 f150s, but it seems that they sell NSS for them :dunno:
https://www.partsgeek.com/catalog/2011/ford/f150/transmission/neutral_safety_switch.html
Tomato/tomahto. They call them range sensors or range switches now I guess. I’ve seen them called park neutral position switches too. PNP switch. We both meant the same thing. They’re a little more complicated than a simple old school neutral safety switch.
Post by: jackelope on November 02, 2018, 01:44:55 PM
Yes Jackelope, PCM not PCIM... code is P0705. The guy that looked at it said the sensor or switch that it could be tells PCM that truck is in neutral and it's safe to start. If sensor is failing, truck does not know transmission in set to park and will not engage PCM to allow it to turn over?? Does that make sense? He called it neutral safety switch which I found quite a bit of info on, but seems people call the transmission range sensor a neutral safety switch in error?
Either way, seems replacing that is best bet and not likely PCM??
If you don’t want to have someone diagnose the problem, it’s probably a safe bet to replace the TRS and see what happens. They’re not very expensive.
Post by: Woodchuck on November 02, 2018, 01:45:24 PM
Post by: cavemann on November 02, 2018, 01:46:01 PM
Post by: 92xj on November 02, 2018, 01:51:13 PM
They don’t have neutral safety switches. Transmission range sensor.
Never heard of a starter safety switch or a Pcim. Maybe a PCM? Almost guarantee it’s not a PCM.
What codes does it have? There would be a p0700 code if it were transmission related but that would only mean there are fault codes stored in the transmission control module that need to be checked.
I admit I'm not up to speed on 2011 f150s, but it seems that they sell NSS for them :dunno:
https://www.partsgeek.com/catalog/2011/ford/f150/transmission/neutral_safety_switch.html
Tomato/tomahto. They call them range sensors or range switches now I guess. I’ve seen them called park neutral position switches too. PNP switch. We both meant the same thing. They’re a little more complicated than a simple old school neutral safety switch.
Roger that. I've been out of the shop for awhile
Post by: cavemann on November 02, 2018, 01:58:18 PM
Post by: Shrimper on November 02, 2018, 03:17:09 PM
Post by: cavemann on November 02, 2018, 04:05:20 PM