1986F150Six Posted January 26, 2021 Share Posted January 26, 2021 https://www.ebay.com/itm/NOS-1984-86-Ford-F-150-F-250-F-350-Bronco-Clutch-Safety-Switch-E4TZ-11A152-B/143928524052?epid=23037558897&hash=item2182cefd14:g:jbgAAOSw~b5gDvdc Link to comment Share on other sites More sharing options...
1986F150Six Posted February 5, 2021 Author Share Posted February 5, 2021 SOLD! Link to comment Share on other sites More sharing options...
Gary Lewis Posted February 5, 2021 Share Posted February 5, 2021 SOLD! That was QUICK! Link to comment Share on other sites More sharing options...
salans7 Posted February 6, 2021 Share Posted February 6, 2021 That was QUICK! I thought about it, but decided if the one I have is bad or ever fails, I'll just bypass it. I always pull my truck out of gear before starting it and nobody else drives them so it won't be a big deal. Link to comment Share on other sites More sharing options...
Rembrant Posted February 6, 2021 Share Posted February 6, 2021 I thought about it, but decided if the one I have is bad or ever fails, I'll just bypass it. I always pull my truck out of gear before starting it and nobody else drives them so it won't be a big deal. I've been meaning to ask about clutch safety switches. My 1980 F150 project truck was originally a T-18 4spd. Would it have had a clutch switch when it was new? I seem to recall that the earlier Bullnoses didn't have these switches? Anybody? Now that I have the 5spd swapped in, I guess I could wire in a safety switch, but that would be way way down my priority list considering the amount of work I have left to do to even get the thing on the road. Link to comment Share on other sites More sharing options...
kramttocs Posted February 6, 2021 Share Posted February 6, 2021 I've been meaning to ask about clutch safety switches. My 1980 F150 project truck was originally a T-18 4spd. Would it have had a clutch switch when it was new? I seem to recall that the earlier Bullnoses didn't have these switches? Anybody? Now that I have the 5spd swapped in, I guess I could wire in a safety switch, but that would be way way down my priority list considering the amount of work I have left to do to even get the thing on the road. My 80 doesn't. Nor does it have the holes in the pedal assembly/bracket for it. I'll check my 80 evtm to see if it shows it for a manual. Link to comment Share on other sites More sharing options...
kramttocs Posted February 6, 2021 Share Posted February 6, 2021 My 80 doesn't. Nor does it have the holes in the pedal assembly/bracket for it. I'll check my 80 evtm to see if it shows it for a manual. Took a look at the 81 evtm in the Doc and doesn't look like it has the circuit for it. Link to comment Share on other sites More sharing options...
Gary Lewis Posted February 6, 2021 Share Posted February 6, 2021 Took a look at the 81 evtm in the Doc and doesn't look like it has the circuit for it. Our page on Documentation/Year-To-Year Differences says this on the Electrical tab. I included the NSS as it seems relevant. Kind of scary, huh? Neutral Start Switch: The automatic transmission neutral safety switch, which prevents the engine from cranking in all but Park and Neutral, first debuted in 1983. (Source: 1983 EVTM) Clutch lockout switch, (E4TZ 11A152-B) which prevents the engine from cranking with the clutch engaged, first appeared in 1984. (Source: 1984 EVTM & MPC ) Link to comment Share on other sites More sharing options...
salans7 Posted February 6, 2021 Share Posted February 6, 2021 Our page on Documentation/Year-To-Year Differences says this on the Electrical tab. I included the NSS as it seems relevant. Kind of scary, huh? Neutral Start Switch: The automatic transmission neutral safety switch, which prevents the engine from cranking in all but Park and Neutral, first debuted in 1983. (Source: 1983 EVTM) Clutch lockout switch, (E4TZ 11A152-B) which prevents the engine from cranking with the clutch engaged, first appeared in 1984. (Source: 1984 EVTM & MPC ) FWIW, my 1986 wiring harness was used in an AOD truck, but it had the clutch safety switch connector taped to the harness with a jumper plug plugged into the connector. My 1990 harness had a completely different style plug and safety switch, so I assume the bullnose style of switch only lasted for 3 years before it changed in 1987. Link to comment Share on other sites More sharing options...
Gary Lewis Posted February 6, 2021 Share Posted February 6, 2021 FWIW, my 1986 wiring harness was used in an AOD truck, but it had the clutch safety switch connector taped to the harness with a jumper plug plugged into the connector. My 1990 harness had a completely different style plug and safety switch, so I assume the bullnose style of switch only lasted for 3 years before it changed in 1987. Would you believe that the first one was used 3 years, the second one only 1 year, and then the third one used for many years? That's in the pickups and Broncos. Apparently the engineers on the vans were smarter? I've added that to the page at Documentation/Electrical/Switches. Link to comment Share on other sites More sharing options...
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