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66 Belvedere II Hemi - safety neutral switch
#1452401
06/13/13 06:19 PM
06/13/13 06:19 PM
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Joined: Nov 2010
Posts: 331
Northeast
edl
OP
enthusiast
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OP
enthusiast
Joined: Nov 2010
Posts: 331
Northeast
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Hi all - the safety neutral switch is not engaging the car has transmission 5 = Torqueflite (according to the broadcast sheet) - i don't know if there is more than one kind of torqueflite transmission available in 66 for a hemi - hopefully the "5" designation clarifies it if there is anyway, the transmission has a 3 prong plug sticking out of it - separately there is a wire near the brake booster that is not in use that has a three prong socket... i am trying to get any information including a copy of a page out of the service manual or a wiring diagram that might shed light on whether this is the right wire and it simply needs to be routed and plugged into the transmission, or what the right answer is on a separate but maybe related note is that there is no brake lights - the simple answer is that there is no bulb or socket in the housing...so that is clearly part of it - but i also don't know if there is a switch/wire that happens at the tranny and if this unused plug/socket might have to do with that?? thanks for any help!! 
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Re: 66 Belvedere II Hemi - safety neutral switch
[Re: stumpy]
#1452407
06/14/13 02:53 AM
06/14/13 02:53 AM
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Joined: Jan 2007
Posts: 10,169
A Red State
SNK-EYZ
I Live Here
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I Live Here
Joined: Jan 2007
Posts: 10,169
A Red State
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As Stumpy/Rich said, it sounds like someone swapped in a later trans.
You can make it work after doing the testing he explained.
If you want it back to original you're gonna need some parts.
Is your car a column shift or a floor shift?
My 67 is a floor shift and the reverse light switch is in the shifter mechanism inside the console.
The neutral safety switch is the single pole in the trans.
Kayse can't keep up at all now. lol
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Re: 66 Belvedere II Hemi - safety neutral switch
[Re: SNK-EYZ]
#1452409
06/14/13 08:14 AM
06/14/13 08:14 AM
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Joined: Nov 2010
Posts: 331
Northeast
edl
OP
enthusiast
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OP
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Joined: Nov 2010
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thanks guys is there any way this could still be the original trans? - i am hoping so because it was advertised to be (problem 1...i paid a bit more thinking it was all numbers matching) and i just paid to have it rebuilt (problem 2 - wouldn't have done that if it is not original and i knew that) -  Sputnik - it is a column shift car any guesses then, what the wire with the 3 prong socket hanging out by the brake booster is for?? thanks
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Re: 66 Belvedere II Hemi - safety neutral switch
[Re: edl]
#1452412
06/14/13 10:43 AM
06/14/13 10:43 AM
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Joined: Jan 2003
Posts: 75,098
A Banana Republic near you.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,098
A Banana Republic near you.
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Quote:
thanks rich
what do you think is the 3 prong coming off of the tranny? is that for the backup lights?
The 66 trans should not have a 3 prong , also the 3 prong needs the correct rooster comb inside the trans to be activated. contact member joesixpack he usually has the switch you need for sale.
If your 66 does have reverse lights the switch that activates them is at the base of the steering column under the dash.
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Re: 66 Belvedere II Hemi - safety neutral switch
[Re: JohnRR]
#1452413
06/14/13 11:45 AM
06/14/13 11:45 AM
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Joined: Nov 2010
Posts: 331
Northeast
edl
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thx John ok - so the car has the wrong switch, fair enough (by the way, can anyone confirm from the numbers whether i actually have the correct tranny? - boy i hope so!) there is also no wire that i can see anywhere near the tranny - there is, however, a three prong socket on the fire wall right near the brake booster that is unused - is that where the wire is supposed to originate from? - what is the routing to the tranny? if that is not where the wire is supposed to originate from, where does it originate from? - said differently, what is the correct wiring from the column to the tranny? - does anyone, by any chance, have a wiring diagram or page from the service manual that lays this out? thanks!
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Re: 66 Belvedere II Hemi - safety neutral switch
[Re: edl]
#1452414
06/14/13 12:30 PM
06/14/13 12:30 PM
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Joined: Jan 2003
Posts: 75,098
A Banana Republic near you.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,098
A Banana Republic near you.
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Quote:
thx John
ok - so the car has the wrong switch, fair enough (by the way, can anyone confirm from the numbers whether i actually have the correct tranny? - boy i hope so!)
there is also no wire that i can see anywhere near the tranny - there is, however, a three prong socket on the fire wall right near the brake booster that is unused - is that where the wire is supposed to originate from? - what is the routing to the tranny?
if that is not where the wire is supposed to originate from, where does it originate from? - said differently, what is the correct wiring from the column to the tranny? - does anyone, by any chance, have a wiring diagram or page from the service manual that lays this out?
thanks!
The 3 prong is probably a prior owners attempt at updating to the 3 prong switch , if it does not work when you plug it in it's probably because the person didn't know the rooster comb is different.
Does one wire from that 3 wire connect to the starter solenoid?
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Re: 66 Belvedere II Hemi - safety neutral switch
[Re: JohnRR]
#1452415
06/14/13 12:53 PM
06/14/13 12:53 PM
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Joined: Nov 2010
Posts: 331
Northeast
edl
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enthusiast
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OP
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Joined: Nov 2010
Posts: 331
Northeast
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thx John i think you are saying: 1. find a 3 prong to 3 prong wire - plug it in both ends and see if it works - if it does, problem fixed 2. if that doesn't work, first check to see if that 3 prong on the firewall is wired to the starter solenoid to see if that firewall outlet was intended to be for the safety neutral switch at all - right? - if there is no wire to the starter, than it must be for something else 3. if it is wired to starter (i won't have access to the car until tomorrow morning to find out), what would be next? 4. if it is not connected to the starter such that we know it has nothing to do with the system, how should it have been wired? - at that point should i look for something coming off of the ignition? - or should i be looking for something coming off of the starter solenoid? thanks for your guidance!
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Re: 66 Belvedere II Hemi - safety neutral switch
[Re: edl]
#1452416
06/14/13 01:12 PM
06/14/13 01:12 PM
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Joined: Jan 2003
Posts: 75,098
A Banana Republic near you.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,098
A Banana Republic near you.
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Quote:
thx John
i think you are saying:
1. find a 3 prong to 3 prong wire - plug it in both ends and see if it works - if it does, problem fixed
2. if that doesn't work, first check to see if that 3 prong on the firewall is wired to the starter solenoid to see if that firewall outlet was intended to be for the safety neutral switch at all - right? - if there is no wire to the starter, than it must be for something else
3. if it is wired to starter (i won't have access to the car until tomorrow morning to find out), what would be next?
4. if it is not connected to the starter such that we know it has nothing to do with the system, how should it have been wired? - at that point should i look for something coming off of the ignition? - or should i be looking for something coming off of the starter solenoid?
thanks for your guidance!
Will the 3 prong by the brake booster reach down to the trans , does it look like it will plug into the switch on the trans ? If the answer to both of these is no then I have no clue what that is .
Does the car start , run and drive now ? If it does will it start in gear ?
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Re: 66 Belvedere II Hemi - safety neutral switch
[Re: JohnRR]
#1452418
06/14/13 02:19 PM
06/14/13 02:19 PM
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Joined: Nov 2010
Posts: 331
Northeast
edl
OP
enthusiast
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OP
enthusiast
Joined: Nov 2010
Posts: 331
Northeast
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Quote:
Will the 3 prong by the brake booster reach down to the trans , does it look like it will plug into the switch on the trans ? If the answer to both of these is no then I have no clue what that is .
Does the car start , run and drive now ? If it does will it start in gear ?
to be clear, there is no wire plugged into the fire wall - just an empty socket on the fire wall - i am starting to think it must have nothing to do with it - who would wire from the starter back up to the firewall near the brake booster, only to then go back under the car to the tranny? - i guess stranger things have happened...but...
the car does start, run and drive now
it will start in gear 
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Re: 66 Belvedere II Hemi - safety neutral switch
[Re: edl]
#1452419
06/14/13 02:35 PM
06/14/13 02:35 PM
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Joined: Aug 2011
Posts: 1,028
NB, Canada
moparfan53
super stock
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super stock
Joined: Aug 2011
Posts: 1,028
NB, Canada
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Quote:
...i know back then the tranny was not vin stamped - here are the numbers from the transmission - my understanding is that this means it is the correct trans (recognizing that w/o vin stamping the best you will have is date correct/part correct and not an actual matching number):
2466900
66 with a three dot stamp next to it like this :.
H2538389 (the "389" is on the broadcast sheet under Build Codes/Trans) 3129077
does this sound right?
Yes, it is the correct trans part# for your application.
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