Car Problem Reports
Mercury Grand Marquis Heater Hose Outlet May Leak Coolant at Back of Intake Manifold
Mercury Grand Marquis Problem
Average Mileage: 129,253 mi (57,000 mi - 247,000 mi)
Visitor, 2000 Mercury Grand Marquis, 247,000 mi
Has been leaking intermittntly. While removing heater hose to check hose, the outlet pipe pulled out of intake manifold. It will not thread tightly into intake manifold. Will clean this up and use JB Weld on it.
Visitor, 1997 Mercury Grand Marquis, 212,000 mi
made my spark plugs misfire..my car was skipping really bad
Visitor, 1995 Mercury Grand Marquis, 119,000 mi
Smelled antifreeze dripping from the back of the 4.6l down onto the exhaust pipe. I saw antifreeze squirting from a small pin hole in the heater hose outlet, which is pressed into the intake manifold. I cut a piece of rubber hose, put it over the pinhole and tightened a hose clamp over it . No more leak even under pressure.
I put in a "stopleak" compound and it is working fine. No leak. There was a recall on the plastic intake manifold. My car was too old to qualify. The redesigned manifold is now in aluminum I think (?)
Visitor, 1999 Mercury Grand Marquis, 98,000 mi
Heater hose leak at back on intake manifold. Used JB weld which held until new leak sprung at thermostat housing. Darn those plastic manifolds. No recall, but there should have been.
Visitor, 2002 Mercury Grand Marquis, 66,000 mi
broken plastic connector to intake manifold
Visitor, 1998 Mercury Grand Marquis, 85,000 mi
intake manifold leak
Visitor, 1996 Mercury Grand Marquis, 156,000 mi
refilling engine coolent daily?
Visitor, 2002 Mercury Grand Marquis, 129,000 mi
heater hose inlet pipe at rear of intake broke off while accelerating.still working on "the fix '
Visitor, 1998 Mercury Grand Marquis, 140,000 mi
nipple is leaking heater core hose nipple is stripped poor design going to try and epoxy nipple in manifold