How do I change the 3rd brak light that is over top the back seats - won;t pass Delaware inspection till I get that replaced

I have seen in the past a failure of the brake light switch...try unplugging it and by passing it

The 3rd brake light does not flash with the flashers. It works independently and only with the brake pedal. Have someone step down on the brake pedal while you check to see if the light comes on.

As for your codes p1131 and 1151: Ford - Lack Of Heated Oxygen Sensor Bank 1 Sensor 1 Switches - Sensor Indicates Lean


Last week I had the very same catalyst, evap and ECG codes come up on my 1999 Mercury Mystique which is like a Ford Taurus. A friend was able to find a hole or leak in the hose connected, replaced it and it runs fine. I havent run it a full and straight 50 miles yet to clear the check engine light but that repair alone changed the entire way the car was poorly driving. Im sure that hasnt fixed all the probs but thats a good starting point.

The A service and B service is an oil change and a long list of inspections. Unless the service is covered under warranty, or this is a new car and you want some piece of mind, I suggest only getting the oil change. The rest of the "service" consists of someone looking for problems with your car. Here's what's included:

A SERVICE (~ $205.95 + tax) :

- Inspect and record tread depth, and correct tire pressure
- Rotate tires (excludes AMG, Sports Models, SLK, and vehicles with staggered wheels)
- Engine oil change and oil filter replacement
-Includes Mobil 1 synthetic oil
- Lubrication service
- Includes hood hinges, lock cylinders, striker
plates, sun roof tracks and top off all fluids
- Cooling system inspection
- Includes antifreeze protection level, hoses and
clamps
- Brake inspection
- Includes check of pad thickness and condition of
discs, fluids and lines
- Inspect heating and ventilation dust filter, replace if needed. (Replacement additional. Dust filter prices vary by model)
- Function check
- Includes warning lamps, headlights, exterior
lights, seat belts, windshield wiper and washer
- Inspect and lubricate throttle linkage
- Check and clean air filter
- Reset flexible service system counter


B SERVICE (~ $379.95 + tax) :

- Inspect windshield wiper inserts and service windshield washer system (Replacement of wiper inserts additional*).
- Inspect and rotate tires, record tread depth, and correct tire pressure. (Wheel balance additional*).
-excludes AMG, Sports Models, SLK, and vehicles
with staggered wheels
- Engine oil change and oil filter replacement
-Includes Mobil 1 synthetic oil
- Lubrication service
- Includes hood hinges, lock cylinders, striker
plates, sun roof tracks and top off all fluids
- Cooling system inspection
- Includes antifreeze protection level, hoses and
clamps
- Brake inspection
- Includes check of pad thickness and condition of
discs, fluids and lines
- Inspect heating and ventilation dust filter, replace if needed. (Replacement additional*. Dust filter prices vary by model)
- Function check
- Includes warning lamps, headlights, exterior
lights, seat belts, windshield wiper and washer
- Inspect and lubricate throttle linkage
- Check and clean air filter
- Reset flexible service system counter
- Inspect front axle ball joints; check steering play and power steering clutch; and rear differential levels
- Inspect Poly V-Belt for condition
- Inspect starting and charging system and service battery
- Inspect climate control refrigerant

From 2006 to 2010, the Sonata's 3rd brake lamp requires the rear package deck be removed to access that bulb.
1. Remove the rear passenger seat bottom (remove two12mm bolts between the seat back and the seat bottom - tilt the seat back forward to locate these bolts).
a. Press the two bottom front edge tabs to release the front of the seat bottom from the floor.
b. Remove seat bottom & set aside w/two 12mm bolts
c. Tilt both seat backs downward
2. Remove the left & right hand shoulder cushions (12 mm bolt at the bottom of each cushion)
a. Remove seat belt from shoulder cushion guide at the top of the cushion
b. Lift up and forward on shoulder cushions to remove them (if equipped with side airbags, disconnect wire harness connector).
c. Set shoulder cushions aside w/two 12mm bolts
3. Using a small flathead screwdriver, pop out the 'SRS' button cover from the C pillar panels on the left & right hand side to access either the phillips head screws, 10mm bolts, or #30 Torque Screws
a. Remove screws and set aside
b. Using a standard flathead screwdriver, pop out the C pillar panels on both sides (clips hold these panels in place)
c. Set these panels aside after removal w/screws/bolts
4. Trunk Access-way panels are held in place by phillips head screws (two at the bottom (left and right hand sides) and 4 to 5 at the top .
a. Remove left and right hand panels and set aside w/screws.
5. Rear package deck held in place with two plastic clips (white, yellow or pink)
a. lie on your back inside the trunk (trunk lid open to allow for more light). Looking through access hole find 3rd brake light wire harness connector & disconnect.
b. locate package deck clips, one on the left and another on the right on the underside of the pckage deck
c. Squeeze clips to push them out - package deck will come loose
d. Remove package deck & remove 3rd brake lamp bulb socket (turn counter clockwise to remove). Replace bulb & reassemble in reverse order.

Have you checked the spark plugs since the light came on? you say that you belive they caused the light to come on? If this is true, are you sure that you spaced them properly? Proper spacing is crucial to making sure they fire correctly and every time. Also, are the correct wires put back in the correct firing order? If all this has been done correctly, take a look at the spark plugs. Do they still look new? Are they covered with oil or early signs of excessive corrosion? Appearences by any of these could point to problems with gaskets. Hope this helps.

Inline or tank filter? Sounds as though you may have a bad sensor

Check for corrosion inside the bulbholder.

Hmmm check the brake light switch at the brake pedal.

Water leak huh? check the wiring in that area for the lights, and have the sockets checked out.

No voltage to the socket when brak applied? tracr wires back till you find the break or short thats not allowing the power to flow to the bulbs


Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/sean_54c3a3dc48a7773c

Yes it matters to the inspector, if it's standers part or after market part that was added and not functioning. They can fail it, I had Off road light's on my truck and one did not work but it was illegal to use them on the road i still failed my inspection till i replaced the bulb.
I ended removing the light, didn't feel like driving off to replace the bulb and come back to get it inspected again.
Good luck and hope this helps, guess it depends on how strick the inspector is.