ToodyTah
Member
- Joined
- Mar 13, 2022
- Messages
- 86
- Reaction score
- 57
- Points
- 18
- Location
- Phoenix, AZ
- My Lincoln
- 2007 Town Car Signature Limited
My 2007 had a problem with subwoofer not working, especially with cold weather. It used to pop rhythmically with increasing tempo, then finally kick in and work (most of the time). This was a quick and easy fix. Remove hinge/motor carpet cover in the trunk. Remove back seat, pop one C pillar trim piece (don't need to do both sides), remove deck cover, four nuts hold the subwoofer assembly to the sheet metal deck. Back to trunk, remove two wiring harnesses on amp, and four T-15 screws to remove amp from sub assembly. T-10 screws hold the amp covers together. Clean w/ IPA, flux, reflow solder, clean w/ IPA.
After the repair, I put the amp in my freezer for an hour, then tested it. Fired right up, good to go.
After the repair, I put the amp in my freezer for an hour, then tested it. Fired right up, good to go.
How to fix your subwoofer amplifier 7L2T-18C808-AA - Ford F150 Forum - Community of Ford Truck Fans
Electrical, Lights and Audio - How to fix your subwoofer amplifier 7L2T-18C808-AA - The OEM subwoofer amp p/n 7L2T-18C808-AA is used on a number of Ford models including the F150, Mark LT, and Edge. Eventually a lot of these units fail when the subwoofer starts cutting out randomly while...
www.f150forum.com
