Mercury Grand Marquis Problem Report
Mercury Grand Marquis Heater Hose Outlet May Leak Coolant at Back of Intake Manifold
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
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. - Visitor
made my spark plugs misfire..my car was skipping really bad - Visitor
broken plastic connector to intake manifold - Visitor
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
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 (?) - donmaj
refilling engine coolent daily? - Visitor
Noticed a coolant leak first and later a misfire on cylinder 4. Found the leak at the outlet coming from intake manifold for the heater. Proceed to replace fouled coil and remove heater hose, while doing so outlet pops right out of the intake manifold. Fix still pending but looks to be jb weld is going to be involved due to the geniuses at Ford using plastic intake manifolds with metal outlets. - Visitor
intake manifold leak - Visitor
plastic nipple broke off tried sticking a hose that fit into hole then red heat silicone it was 2 C O P packs then 2 both the other times it popped out looking for permanent solution please - baddawg5105
water leaks at the back of intake maniful on the passenger side at back of eng. - Visitor
Had leak from thermostat housing. Changed stat and o-ring. No fix. Replaced housing hood and thin layer of permaseal. Still no fix. Old housing inset bevel was more worn than original. Took it to mechanic. manifold gasket and stat hosing needed replaced. Cost about $600. - Visitor
heater hose inlet pipe at rear of intake broke off while accelerating.still working on "the fix ' - Visitor
nipple is leaking heater core hose nipple is stripped poor design going to try and epoxy nipple in manifold - Visitor
the heater hose outlet was worn out and corroded.so I had to take the intake manifold off get a piece of copper pipe to be put on to replace the worn out piece. - Visitor
Hose nipple came out of plastic manifold. Repair performed at shop with new manifold being installed. - Visitor
Having issues with the heater as winter is approaching. So, I've done some research and unable...
I have heard alot of people saying there intake cracked on there grand marquis but on my 2000 m...
I have a coolant leak at a crack in the intake manifold at the top-front of the 4.2(maybe 4.6?)...
I put on a new intake manifold on my Grand Marquis GS 4.6 Litre, made sure the wires were right...
Need to know what size tap was used to cut threads and what size screw in nipple was used. I t...