20 Most Recent 2002 Lincoln Navigator - Page 3 Questions & Answers

The service port is located after the condenser, just before the reciever-driere, on the passenger side, near the firewall. murf427

Duplicate question.

Follow the instructions in your owners manual, but you must have the original code, if you don't the code is on the keyless entry module. If you do not have an owners manual you can download one HERE.

are you looking to replace them because the truck doesn't sit right look on all 4 corners on control arms there is a height sensor the rods pop off all the time and throw the height off in other corners and ends

Probably a large vacuum leak.

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These problems can cause by several different reasons,Engine needs air-fuel and sparks to keep running.Ignitions and fuel system inspections will be good place to start and if you have any engine warning light on your dash the best thing to get the code read out to get first idea what is causing the problems you have!!

Sounds like the blend door or blend motor is not functioning/opening. This door allows the heat/cold air to come in by adjusting open, closed or anywhere in-between for temp. Start there. They are usually vacuum controlled and mounted under the front dashboard near the knee board.