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Clutch/starter safety switch [E4TZ-11A152-B] - NOS

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1986F150Six

Clutch/starter safety switch [E4TZ-11A152-B] - NOS

Administrator

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

1986F150Six

Re: Clutch/starter safety switch [E4TZ-11A152-B] - NOS

Administrator

SOLD!

Gary Lewis

Re: Clutch/starter safety switch [E4TZ-11A152-B] - NOS

Administrator

That was QUICK!

Gary, AKA "Gary fellow": Profile

Dad's: '81 F150 Ranger XLT 4x4: Down for restomod: Full-roller "stroked 351M" w/Trick Flow heads & intake, EEC-V SEFI/E4OD/3.50 gears w/Kevlar clutches
Blue: 2015 F150 Platinum 4x4 SuperCrew wearing Blue Jeans & sporting a 3.5L EB & Max Tow
Big Blue: 1985 F250HD 4x4: 460/ZF5/3.55's, D60 w/Ox locker & 10.25 Sterling/Trutrac, Blue Top & Borgeson, & EEC-V MAF/SEFI

salans7

Re: Clutch/starter safety switch [E4TZ-11A152-B] - NOS

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.

Rembrant

Re: Clutch/starter safety switch [E4TZ-11A152-B] - NOS

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.

1994 F150 4x2 Flareside. 5.0 w/MAF, 4R70W, stock.
1984 F150 4X2 Flareside. Mild 302 w/ 5spd. Sold.
1980 F150 4X4 Flareside. 300i6 w/ 5spd. Sold in 2021.
1980 F100 4X2 Flareside. 351w/2bbl w/NP435. Sold in 1995

kramttocs

Re: Clutch/starter safety switch [E4TZ-11A152-B] - NOS

Administrator

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.

Scott
'Camano' 1986 F250 Supercab XLT Lariat 460/C6
'Chanute' 1980 F350 C&C 400/NP 435 - Gin Pole

But there ain't nothin' wrong with the radio

kramttocs

Re: Clutch/starter safety switch [E4TZ-11A152-B] - NOS

Administrator

Took a look at the 81 evtm in the Doc and doesn't look like it has the circuit for it.

Scott
'Camano' 1986 F250 Supercab XLT Lariat 460/C6
'Chanute' 1980 F350 C&C 400/NP 435 - Gin Pole

But there ain't nothin' wrong with the radio

Gary Lewis

Re: Clutch/starter safety switch [E4TZ-11A152-B] - NOS

Administrator

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 )

Gary, AKA "Gary fellow": Profile

salans7

Re: Clutch/starter safety switch [E4TZ-11A152-B] - NOS

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.

Gary Lewis

Re: Clutch/starter safety switch [E4TZ-11A152-B] - NOS

Administrator

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.

Gary, AKA "Gary fellow": Profile

FuzzFace2

Re: Clutch/starter safety switch [E4TZ-11A152-B] - NOS

Both of my 81's did not have the clutch switch and if so I would have most likely jumped it out as part of the rebuild.

When I was learning to drive I was told on ANY stick car or truck push the clutch to the floor before turning the key.

On my work truck we leave them out of gear, air brakes set, and even knowing it is out of gear I still push the clutch in before starting it when I am sitting inside the truck.
Dave ----

Dave G.
81 F100 flare side 300 six / AA OD / NP435 / 2.75 gear
http://cars.grantskingdom1.com/index.php/1980-Ford-F100?page=1
81 F100 style side 300 six/SROD parts truck -RIP
http://cars.grantskingdom1.com/index.php/1981-Ford-F100

salans7

Re: Clutch/starter safety switch [E4TZ-11A152-B] - NOS

In reply to this post by Gary Lewis

I learned the hard way that the switch is different between a 1990 F250, and a 2003 Ford Ranger. They look VERY similar, but there are differences in the way the ends are shaped. I ran into this when I broke the retaining clip on mine in the Ranger, and tried to use the one from the 1990 F250 parts truck. I ended up just having to utilize the jumper plug from my F350's wiring harness and run without a safety switch because I couldn't get the switches to stay on the pushrod.

Gary Lewis

Re: Clutch/starter safety switch [E4TZ-11A152-B] - NOS

Administrator

I've liked the idea of a clutch switch ever since someone got in Dad's truck and started it in 1st a couple of feet from the garage door. He got it shut down before hitting the door, but it scared me. (It wasn't me.) So now anything with a manual tranny will have a clutch switch.

As for the differences, I don't have a clue. Just that the part numbers changed, so something is different.

Gary, AKA "Gary fellow": Profile

salans7

Re: Clutch/starter safety switch [E4TZ-11A152-B] - NOS

I looked up the 1987 switch, and it looks very similar to the 84-86 version.

But then again, Ford does like to change things every few years and maybe since the pedal assembly has a slightly different shape in 1987, that's why it had to change. The clutch master cylinder on 80-96 F-Series trucks mounts to the firewall, but in 1995 Ford switched the clutch master cylinders on Rangers to mount through the pedal assembly below the brake booster, hence why there's probably a difference between the safety switches.