| TSB 17-0029 | EXHAUST ODOR IN VEHICLE |
| Publication Date: March 14, 2017 | |
| FORD | 2011-2015 Explorer |
This article supersedes TSB 14-16-NA and 14-04-NA to update the Service Procedure.
ISSUE:
Some 2011-2015 Explorer vehicles may exhibit an exhaust odor in the vehicle with the auxiliary climate control system on. Customers may indicate the odor smells like sulfur, or that exhaust odors are entering the vehicle cabin. This condition may be worsened when the climate control system is in recirculate mode and the vehicle is heavily accelerated for an extended period. Whether and to what extent any customer or occupant of a 2011-2015 Explorer vehicle experiences the exhaust odor will be affected by driving habits, weather and individual sensitivities.
ACTION:
Follow each and every step of the Service Procedure in procedure 1 to improve the condition.
SERVICE PROCEDURES
The body sealing steps in this procedure are critical elements in helping to manage subjective odor concerns
- Remove the rear bumper cover. Refer to Workshop Manual (WSM), Section 501-19.
- Remove the left and right tail lamps. Refer to WSM, Section 417-01.
- Remove the wheel lip mouldings. Refer to WSM, Section 501-08.
- Open the liftgate and inspect for presence of drain valves in the two (2) drain holes on the left and right side of the liftgate. Are the drain valves present? (Figure 1)

Figure 1 – 17-0029- Yes – proceed to Step 6.
- No – proceed to Step 5.
- Install a new drain valve in each of the two (2) drain holes on the left and right side of the liftgate. (Figure 1)
- Inspect the liftgate seal for damage and proper fit/contact pattern. Adjusting the rear liftgate striker so that the rear hatch seals tighter to the liftgate seal is important. This can be done by loosening the striker and moving it to increase the liftgate sealing pressure.
- Inspect the left and right side air extractors for proper fit to the body and operation/sealing of the rubber flaps.
- Inspect and verify proper installation of the wire harness grommets and body plugs in the liftgate opening, quarter panels under the tail lamps, license plate and bumper cover and the rear underbody area.
- Using masking tape, seal the left and right air extractor vents and the rear auxiliary climate control drain tube.
- Make sure to tape off only the vents and not the area around the air extractor where it seals to the body of the vehicle.
- Start the vehicle and set the front climate control to fresh air mode and front blower speed to HI. Turn the rear climate control off.
- Make sure all windows are up and all doors are closed in order to pressurize the cabin.
- Use soapy water (dish soap or bubble bath works best-not bar soap) in a spray bottle to help locate air leaks.
- Spray the underbody seams, rubber grommets, rear wheel well seams, tail lamp seams, liftgate seals, quarter glass seals, license plate area, liftgate hinge area, auxiliary a/c seals and the area where air extractors mount in the body.
- Air leaks will be identified by the presence of air bubbles. Mark the location of any leaks.
- Turn off the a/c and shut the vehicle off.
- Clean and dry all marked areas and seal using Motorcraft Seam Sealer.
- Raise the vehicle on a hoist. Refer to WSM, Section 100-02.
- Is the vehicle equipped with 3.5L Ti-VCT engine?
- Yes – proceed to Step 18.
- No – proceed to Step 19.
- Inspect the exhaust tips. Are down turned exhaust tips present? (Figure 8)
- Yes – proceed to Step 19.
- No – remove the rear section of the exhaust system and proceed to Step 20. Refer to WSM, Section 309-00.
- Lower and support the rear section of the exhaust system.
- Clean areas on the underside of the vehicle where seam sealer will be applied. (Figures 3-5)

Figure 3 – 17-0029
Figure 4 – 17-0029
Figure 5 – 17-0029 - Verify the auxiliary climate control drain tape is still in place. If the exhaust system was not removed in Step 17, cover the exhaust system to prevent contamination from undercoating spray.
- Apply a generous amount of Motorcraft Seam Sealer to the following areas:
- The rear horizontal sheet metal lap joints on left and right sides of the vehicle.
- The rear sheet metal overlap flange across the rear of the vehicle. (Figures 3-5)
- Spray a generous amount of 3M™ Rubberized Undercoating around the auxiliary air conditioning lines and seam sealer areas. (Figure 6)

Figure 6 – 17-0029 - Remove the tape from the air extractors and auxiliary climate control drain.
- Was exhaust system removed in step 18?
- Yes – inform the customer of the redesigned exhaust tips and that appearance will remain the same but the exhaust will exit the tip from bottom. Upon acceptance, replace the muffler assembly with the updated part containing the down turned exhaust tips. Refer to WSM, Section 309-00. (Figures 7-8)

Figure 7 – 17-0029
Figure 8 – 17-0029 - No – reinstall the rear exhaust system.
- Yes – inform the customer of the redesigned exhaust tips and that appearance will remain the same but the exhaust will exit the tip from bottom. Upon acceptance, replace the muffler assembly with the updated part containing the down turned exhaust tips. Refer to WSM, Section 309-00. (Figures 7-8)
- Install the wheel lip mouldings. Refer to WSM, Section 501-08.
- Install the rear bumper cover. Refer to WSM, Section 501-19.
- Apply masking tape around the outer edge of the rear fender mouldings to protect the vehicle from damage.
- Install the tail lamps. Refer to WSM, Section 417-01.
- Return the vehicle to customer.
Obtain Locally
| Part Number | Part Description |
| 08883
Sale
3M Rubberized Undercoating Aerosol Spray, 08883, 19.7 oz, Textured Finish, Anti-Corrosive, Multi-Purpose for Automotive Cars, Trucks, and Recreational Vehicles Black
Last update on 2026-06-18 / Affiliate links / Images from Amazon Product Advertising API | 3M™ Rubberized Undercoating |
| BB5Z-61280B62-B | Dual Rate Air Extractor |
| BB5Z-7829164-AA No products found. | Wheel Lip Moulding Right Side |
| BB5Z-7829165-AA No products found. | Wheel Lip Moulding Left Side |
| 4M8Z-54280B62-A
Ford Valve ASY - AUT
Last update on 2026-06-18 / Affiliate links / Images from Amazon Product Advertising API | Valve Assembly Auto Drain |
| TA-2-B
Genuine Ford Fluid TA-2 Seam Sealer - 10.3 oz.
Last update on 2026-06-18 / Affiliate links / Images from Amazon Product Advertising API | Motorcraft Seam Sealer |
| EB5Z-5230- A | Muffler Assembly |
| OPERATION | DESCRIPTION | TIME |
| MT170029 | Use SLTS Operations If Available; Claim Additional Diagnosis Or Labor Performed As Actual Time | Actual Time |
WARRANTY STATUS
Eligible Under Provisions Of New Vehicle Limited Warranty Coverage.
Warranty/ESP coverage limits/policies/prior approvals are not altered by a TSB. Warranty/ESP coverage limits are determined by the identified causal part and verified using the OASIS part coverage tool.
DEALER CODING
| BASIC PART NO. | CONDITION CODE |
| 54280B62 | 42 |
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- All-Weather Performance: Designed to deliver a long-lasting seal, our automotive seam sealer withstands extreme weather without shrinking or cracking. Seam seal technology ensures it remains flexible and durable for both indoor and outdoor applications, making it a versatile automotive sealant.
- Easy Application & No Prep Needed: Seamlessly compatible with any standard urethane caulk gun, this auto glass sealant offers excellent adhesion without the need for surface prep. Our car seam sealer ensures quick and professional-grade gap filling.
- Versatile Application Across Vehicles: Perfect as car body filler for boats, trucks, and RVs, this automotive paintable seam sealer ensures a seamless fit on body panel and seams. Acting as an RV seam sealer, it meets diverse automotive repair needs effectively.
- Professional Results Guaranteed: Trusted by auto repair experts across the USA, our auto body seam sealer ensures high-quality, professional repairs with every use. Satisfaction guaranteed—see the difference in your repairs!
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- Packaging may vary
- SINGLE COMPONENT FORMULA: Adheres well to bare metal, primed metal and painted surfaces
- MOISTURE CURING PROPERTY: Provides excellent performance in high heat and humidity environments
- NON-SHRINKING, NON-CRACKING: Remains flexible and offers superior results to solvent-based sealers
- QUICK PAINTABILITY: Allows painting after 30-45 minutes
- THICK CONSISTENCY: Fills large voids and can be smoothed to a featheredge or brushed
- PROFESSIONAL AUTOMOTIVE SEAM SEALER — WON'T SHRINK OR CRACK — Polyurethane formula seals body panel seams, weld joints, and gaps with a durable, flexible compound that stays put. Unlike generic fillers, this seam sealer maintains flexibility through temperature extremes and road vibration without cracking or pulling away.
- PAINTABLE IN 30 MINUTES — Apply, wait 30 minutes, and paint right over it. Fast cure time means you can prime and topcoat the same day — no overnight wait between seam sealing and painting. Accepts all automotive primers and topcoats.
- BONDS TO BARE, PRIMED & PAINTED METAL — Adheres equally well to bare steel, primed surfaces, and already-painted panels. No special surface preparation beyond basic cleaning. Also bonds to fiberglass and composite panels for complete auto body restoration work.
- 2-PACK WITH GLOVES — STANDARD CAULKING GUN COMPATIBLE — Two 10 oz cartridges provide enough seam sealer for full panel or floor pan restoration. Loads into any standard caulking gun for controlled bead application. Includes nitrile gloves for clean handling.
- AUTO BODY, RV & MARINE APPLICATIONS — Use as an automotive seam sealer, RV roof sealant, or marine joint compound. Seals truck bed seams, rocker panels, door jambs, wheel wells, floor pans, and undercarriage joints. Waterproof and weather resistant once cured.
- Rapid Paint & Superior Bond: Our seam sealer automotive Securely bonds bare, primed, or painted metal with zero shrinkage. Ready for paint in just 30 minutes—no sanding or extra prep. Saves hours of shop time. Perfect as a RV roof sealant and polyurethane auto body filler.
- All-Weather Tough: Withstands extreme temperatures from -60°F to 300°F without shrinking or cracking. Remains permanently flexible to block moisture, prevent rust, and endure harsh outdoor environments.
- Easy & No Prep: Compatible with any standard caulk gun for a no-sag, precision flow. Achieve professional-grade gap filling without complex surface prep—smooths easily into tight seams and complex curves.
- Versatile & Shock-Absorb: Beyond cars—perfect for RVs, trucks, and boats. This auto paintable seam sealer absorbs road vibrations and door-slam impacts, ensuring chassis and body seams stay intact under heavy-duty stress.
- Pro-Trust Without Concern: The heavy-duty choice for mechanics and DIYers. We stand behind our urethane auto seam sealer with a hassle-free substitute or reimbursement of your order value if needed.
Last update on 2026-05-31 / Affiliate links / Images from Amazon Product Advertising API
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