Two problems related to manifold/header/muffler/tail pipe have been reported for the 2002 Mercury Grand Marquis. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2002 Mercury Grand Marquis based on all problems reported for the 2002 Grand Marquis.
Tl- the contact owns a 2002 Mercury Grand Marquis. The contact stated that there was a premature failure in which there was an internal crack on the intake manifold that caused water intrusion affecting other components due to the failure. The vehicle was to be inspected and diagnosed by a mechanic or a dealer. The manufacturer was notified of the failure. The approximate failure mileage was not available. Dyd.
Plastic heater supply tube (located in rear of plastic intake manifold) failed causing engine to overheat. Intake manifold has to be replaced.
| Engine Exhaust System problems | |
| Manifold/header/muffler/tail Pipe problems | |
| Gasoline Engine problems | |
| Engine Oil Leaking problems | |
| Engine And Engine Cooling problems | |
| Engine Shut Off Without Warning problems | |
| Engine Belts And Pulleys problems |