Brake light switch - Do we have one or two?
Thread Starter
Instructor
Joined: Feb 2008
Posts: 105
Likes: 0
From: South Carolina
Brake light switch - Do we have one or two?
Guys, thanks for your help the last few days.
I got my hazard lights working (AWESOME) and now with the brake light switch:
I just bought ONE and I am going to put it in tonight. A question after looking at this and pelican, Do I have two brake light switches? Looking at the master cyclinder online, it looks like I have two? If I have only one which will affect the brake lights, which one do I replace?
Thanks, David
I got my hazard lights working (AWESOME) and now with the brake light switch:
I just bought ONE and I am going to put it in tonight. A question after looking at this and pelican, Do I have two brake light switches? Looking at the master cyclinder online, it looks like I have two? If I have only one which will affect the brake lights, which one do I replace?
Thanks, David
Addict
Joined: Jan 2007
Posts: 37,754
Likes: 15
From: Alta Loma Alone
It is redundant (I can't spell) and yes you do have two.
For some reason I only did one at a time and I didn't get good results until I had the back one in. You have to remove alot of stuff, but it is worth it. I'd hold off till you have two, or do the rear or back one first. It could be a preshure thing, or I could be high.
For some reason I only did one at a time and I didn't get good results until I had the back one in. You have to remove alot of stuff, but it is worth it. I'd hold off till you have two, or do the rear or back one first. It could be a preshure thing, or I could be high.
Addict
Joined: Jan 2007
Posts: 37,754
Likes: 15
From: Alta Loma Alone
I don't recall what you drive but you want the two prong narrow ones. if you found them locally you did good. It is very frustrating to go 100 miles to the "sponsor" store and get the wrong item.
Legacy Flounder
Rennlist Member
Rennlist Member
Joined: Nov 2004
Posts: 3,439
Likes: 0
From: Cumberland, RI
Exactly. I still haven't found anyplace that has the narrow two-prongers. I just replaced mine about a week ago.
Yes, two switches. Yes, bleed the brakes after, and make sure you don't get the brake fluid on anything painted. Take your time. I had to remove a bunch of stuff to get to the back one (well, to even SEE the back one), but it's not difficult, just time consuming.
Good luck!
Yes, two switches. Yes, bleed the brakes after, and make sure you don't get the brake fluid on anything painted. Take your time. I had to remove a bunch of stuff to get to the back one (well, to even SEE the back one), but it's not difficult, just time consuming.
Good luck!
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Racer
Joined: Mar 2008
Posts: 317
Likes: 2
From: Rhode Island
If you have failed Brake light switches you should really read this thread:
https://rennlist.com/forums/911-forum/408194-1988-carrera-brake-light-problem.html
I had same issue but have found the switches may be failing because of current load. I put the new ones in along with a relay to reduce the current through the new switches. I posted the details in the thread above.
https://rennlist.com/forums/911-forum/408194-1988-carrera-brake-light-problem.html
I had same issue but have found the switches may be failing because of current load. I put the new ones in along with a relay to reduce the current through the new switches. I posted the details in the thread above.
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Racer
Joined: Mar 2008
Posts: 317
Likes: 2
From: Rhode Island
Exactly. I still haven't found anyplace that has the narrow two-prongers. I just replaced mine about a week ago.
Yes, two switches. Yes, bleed the brakes after, and make sure you don't get the brake fluid on anything painted. Take your time. I had to remove a bunch of stuff to get to the back one (well, to even SEE the back one), but it's not difficult, just time consuming.
Good luck!
Yes, two switches. Yes, bleed the brakes after, and make sure you don't get the brake fluid on anything painted. Take your time. I had to remove a bunch of stuff to get to the back one (well, to even SEE the back one), but it's not difficult, just time consuming.
Good luck!
http://www.joetlc.com/brake-light-sw...o-p-16814.html
$5.00 each
I bought mine from that site.
Thread Starter
Instructor
Joined: Feb 2008
Posts: 105
Likes: 0
From: South Carolina
Man,
This is time consuming. By the way, it is a 1987 911 coupe. I have unscrewed the bolts for the main cyclinder but I can't seem to move it. I need to figure out what else to unscrew. Any ideas?
Thanks
This is time consuming. By the way, it is a 1987 911 coupe. I have unscrewed the bolts for the main cyclinder but I can't seem to move it. I need to figure out what else to unscrew. Any ideas?
Thanks
Legacy Flounder
Rennlist Member
Rennlist Member
Joined: Nov 2004
Posts: 3,439
Likes: 0
From: Cumberland, RI
Dave,
On my 84... remove the carpet. Remove the rear stop-panel covering the goodies on the firewall. Remove the cruise control box & bracket. Remove one piece of hose that ran from center of car to driver's side of car. That gave me access to the 2 switches from memory. Unplug the connectors, (I used wide-prong switches so I had to disassemble the white plastic connectors), then I used a large wrench as my large dia sockets didn't clear the prongs. Kept all but a drop of fluid in by having the replacement switch ready & using a finger to plug the hole in the master cylinder, thread the new one in. Repeat for the other one. Bleed the brakes, reconnect the wires, reassmble the pieces removed for access. If installing a relay kit, do that before reassembling.
Have towels ready to catch any fluid drips, toss & go.
In my case, I left the master cylinder in the car, didn't need to remove too much for access.
On my 84... remove the carpet. Remove the rear stop-panel covering the goodies on the firewall. Remove the cruise control box & bracket. Remove one piece of hose that ran from center of car to driver's side of car. That gave me access to the 2 switches from memory. Unplug the connectors, (I used wide-prong switches so I had to disassemble the white plastic connectors), then I used a large wrench as my large dia sockets didn't clear the prongs. Kept all but a drop of fluid in by having the replacement switch ready & using a finger to plug the hole in the master cylinder, thread the new one in. Repeat for the other one. Bleed the brakes, reconnect the wires, reassmble the pieces removed for access. If installing a relay kit, do that before reassembling.
Have towels ready to catch any fluid drips, toss & go.
In my case, I left the master cylinder in the car, didn't need to remove too much for access.
Instructor
Joined: Aug 2002
Posts: 108
Likes: 0
From: Oklahoma City, OK
You do not need to remove the master cylinder.
Also, do not overtighten the switches when you install them.
Easy job, just takes awhile.
..
Also, do not overtighten the switches when you install them.
Easy job, just takes awhile.
..
Burning Brakes
Joined: Nov 2005
Posts: 798
Likes: 0
From: CA
You need 2 switches for yuor car, the 2 prongs switch. Read this thread before yuo swap in your new switches or youmight ruin them before you decide to get the Arc Suppressor kit.
Not sure how long have to read these board but burning hydrolic switch is a comment problem to our car. To most people, after 2 months, the switch start to slow down.
Good luck.
Not sure how long have to read these board but burning hydrolic switch is a comment problem to our car. To most people, after 2 months, the switch start to slow down.
Good luck.
Racer
Joined: Mar 2008
Posts: 317
Likes: 2
From: Rhode Island
Dave,
On my 84... remove the carpet. Remove the rear stop-panel covering the goodies on the firewall. Remove the cruise control box & bracket. Remove one piece of hose that ran from center of car to driver's side of car. That gave me access to the 2 switches from memory. Unplug the connectors, (I used wide-prong switches so I had to disassemble the white plastic connectors), then I used a large wrench as my large dia sockets didn't clear the prongs. Kept all but a drop of fluid in by having the replacement switch ready & using a finger to plug the hole in the master cylinder, thread the new one in. Repeat for the other one. Bleed the brakes, reconnect the wires, reassmble the pieces removed for access. If installing a relay kit, do that before reassembling.
Have towels ready to catch any fluid drips, toss & go.
In my case, I left the master cylinder in the car, didn't need to remove too much for access.
On my 84... remove the carpet. Remove the rear stop-panel covering the goodies on the firewall. Remove the cruise control box & bracket. Remove one piece of hose that ran from center of car to driver's side of car. That gave me access to the 2 switches from memory. Unplug the connectors, (I used wide-prong switches so I had to disassemble the white plastic connectors), then I used a large wrench as my large dia sockets didn't clear the prongs. Kept all but a drop of fluid in by having the replacement switch ready & using a finger to plug the hole in the master cylinder, thread the new one in. Repeat for the other one. Bleed the brakes, reconnect the wires, reassmble the pieces removed for access. If installing a relay kit, do that before reassembling.
Have towels ready to catch any fluid drips, toss & go.
In my case, I left the master cylinder in the car, didn't need to remove too much for access.