mechanical question, 97 crown vic

torchred06 · 10-31-2010

Noticed the other day that to get the car (97 crown vic) out of park I had to stand on the brakes. Problem kept getting worse and now I can't put it in gear at all. Brake fluid and transmission fluid are fine, and no noticeable damage to sensors. Does one of the solenoids on the transnission control this as a safety of some type?

poneyexpress · 10-31-2010

I would think so , since you have to mash the brakes to get it into gear . Is there a switch under the dash on the brake peddle ?

hotwheels · 10-31-2010

There is a little switch behind the brake pedal that is actuated by you stepping on the brake. This allows a positive current to flow to the brake lights turning them on. The same current flows to the shift interlock allowing you to shift the gear selector out of park.

The most common cause of no brake light-- stuck in park-- is a broken wire at / or close to the connection to the little contact switch behind the brake pedal. Also, The interlock does indeed have a fuse, check your fuse.

If you are in a pinch you can slide the key into the cylinder, turn to the "on" position (NOT run), move the shift lever to N, then start the car.

torchred06 · 10-31-2010

Did a little more research. Fuses are all good but I don't have brake lights. Going back out to test the switch now.

torchred06 · 10-31-2010

The switch itself has continuity when the pedal is pressed, however there is no power to it. Anyone know where I can get a wiring diagram of the brake circuit?

10-31-2010	#1 (permalink)
torchred06 Junior Member Join Date: Mar 2007 Location: the south Posts: 82 iTrader: (0) Friends: (1) Last Online: 11-02-2010 08:54 PM Time Spent Online: 1 Hour 48 Minutes 48 Seconds My Album's: torchred06's album Thanks: 0 Thanked 0 Times in 0 Posts	mechanical question, 97 crown vic Noticed the other day that to get the car (97 crown vic) out of park I had to stand on the brakes. Problem kept getting worse and now I can't put it in gear at all. Brake fluid and transmission fluid are fine, and no noticeable damage to sensors. Does one of the solenoids on the transnission control this as a safety of some type?

10-31-2010	#2 (permalink)
poneyexpress Welcoming Moderator Real Name: James Join Date: Apr 2007 Location: Mississippi Posts: 3,147 iTrader: (0) Friends: (18) Last Online: 04-21-2015 05:48 PM Time Spent Online: 2 Weeks 2 Days 6 Hours 4 Minutes 6 Seconds My Album's: poneyexpress's album My Garage: poneyexpress's Garage Thanks: 2 Thanked 7 Times in 7 Posts	Re: mechanical question, 97 crown vic I would think so , since you have to mash the brakes to get it into gear . Is there a switch under the dash on the brake peddle ? __________________ Tork Tech Intercooled Supercharger Kit ,MOROSO blowby catch can , Fluidyne 2 core radiator, BBK longtube headers W/matching H-pipe, Magnaflow cat back, SCT tunner, MGW shifter,13" Cobra brake up-grade kit, FRPP 3.73 gears, Trick Flow diff cover,SPEC stage 2 clutch , FRPP aluminum drive shaft ,MM castercamber plates , H&R race springs, Bilstein struts and shocks , Maximum Motorsports full length subframe connectors , UPR Pro Street adjustable upper and lower control arms .

10-31-2010	#3 (permalink)
hotwheels Car Enthusiast Real Name: Doug Join Date: Aug 2006 Location: Cheyenne, Wyoming Posts: 21,597 Twitter ID: insanemustangs iTrader: (0) Friends: (418) Last Online: 05-14-2024 08:23 AM Time Spent Online: 4 Weeks 13 Hours 40 Minutes 4 Seconds My Album's: hotwheels's album My Garage: hotwheels's Garage Thanks: 4 Thanked 32 Times in 31 Posts	Re: mechanical question, 97 crown vic There is a little switch behind the brake pedal that is actuated by you stepping on the brake. This allows a positive current to flow to the brake lights turning them on. The same current flows to the shift interlock allowing you to shift the gear selector out of park. The most common cause of no brake light-- stuck in park-- is a broken wire at / or close to the connection to the little contact switch behind the brake pedal. Also, The interlock does indeed have a fuse, check your fuse. If you are in a pinch you can slide the key into the cylinder, turn to the "on" position (NOT run), move the shift lever to N, then start the car. __________________ Webmaster in training and owner of a mini Jay Leno Poorman's car collection

10-31-2010	#4 (permalink)
torchred06 Junior Member Join Date: Mar 2007 Location: the south Posts: 82 iTrader: (0) Friends: (1) Last Online: 11-02-2010 08:54 PM Time Spent Online: 1 Hour 48 Minutes 48 Seconds My Album's: torchred06's album Thanks: 0 Thanked 0 Times in 0 Posts	Re: mechanical question, 97 crown vic Did a little more research. Fuses are all good but I don't have brake lights. Going back out to test the switch now.

10-31-2010	#5 (permalink)
torchred06 Junior Member Join Date: Mar 2007 Location: the south Posts: 82 iTrader: (0) Friends: (1) Last Online: 11-02-2010 08:54 PM Time Spent Online: 1 Hour 48 Minutes 48 Seconds My Album's: torchred06's album Thanks: 0 Thanked 0 Times in 0 Posts	Re: mechanical question, 97 crown vic The switch itself has continuity when the pedal is pressed, however there is no power to it. Anyone know where I can get a wiring diagram of the brake circuit?

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