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I was smelling oil yesterday when we were running errands. When we got home, I opened the hood and found oil at the driver's side rear of the engine. The oil was running down the back of the valve cover and dripping on the exhaust manifold. I am pretty certain the oil is leaking at the rear...

1999 Mountaineer, 83K miles, no garage so it sits outside. Pulled the center console to replace the pre-cat O2 sensors. I cut the carpet back to access the service panel and when I pulled the carpet back, the driver's side front carpet padding was soaking wet. Seems to be water, not anti-freeze...

A friend who's out of work has a 91 Explorer and she says she'll be driving along fine and then once in a while, the truck starts shaking like crazy. I haven't looked at it yet but am guessing a loose front suspension? I also don't know the mileage but I suspect it's high since it's almost 20...

We have a 1999 Mountaineer with leather interior. My goal is to convert both front seats to "heated" seats. I'm wondering how difficult it is to remove the leather to install the seat heaters? Has anyone done this? Too bad it's a Ford as my SAAB has all the seats heated from the factory...

We bought our Mountaineer new in January 1999. It's got 82K miles on it and just lately, I've been spending money on it, mainly because it's time. Rebuilt heads due to I broke an intake manifold bolt, new rear end (junkyard) because the Dealer messed up the pinion preload. New PCV components to...

Howdy Ford SUV owners. I recently replace the whole rear axle assembly at 78,600 miles. The old one burned up after the Dealer replaced the pinion seal. Had the bearings so tight, the rear-end was smoking hot. I noted the original shocks seemed OK as it took some effort to compress them...

We just returned from a 3350 mile road trip and our 1999 Mountaineer did great. It's got 81K+ miles on it. We bought it new in January of 1999. The shocks are original. Driving this 6-day trip, it felt great on dips, valleys, and washboard roads showing no evidence of poor dampening. But I...

Spent the weekend replacing the rear axle with a wrecking yard unit. Seems like it's OK but brakes are now unsafe. When I removed the rear axle assembly, the disconnected brake line dripped most of the time. I pressure bled the system with a motive bleeder but still spongy. Reading other...

Well, instead of rebuilding the differential, I found an axle at a wrecking yard, parts stored inside, that has 30K miles on it. Would like to buy it and install it myself. How big of PITA is it to do? I'm thinking the most difficult part might be lifting it out and then the replacement into...

Ongoing crap. Had the Dealer replace the rear differential pinion seal last Saturday for $180. They said the pinion bearings are gritty. Today we drove it 160 miles and when we got home, the whole underside of the vehicle in back was dripping with gear oil. It had never leaked like that before...

OK, Everyone here was trying to save me money detailing the replacement of the rear differential pinion shaft seal. The instructions were great. Thanks! My Wife took the Mountaineer to the Ford Dealer as a favor so I have one less project to deal with. So I'm $180 poorer. The mechanic that...

I tried to remove the driveshaft from the rear differential last night (99 Mountaneer V8) and the four bolts are something new to me. Round and hase fine teeth around the perimeter. Anyway, it takes a socket that I certainly don't own. Anyone know what these bolts are called so I can purchase...

Our 5.0 Mountaineer a few weeks ago I broke off 2 intake manifold bolts trying to fix a very slow coolant leak. It required the heads to come off and while they were off, they got reworked guides, new exhaust valves, and hardened exhaust valve seats. Anyway, I was overcautious installing the...

I've been reading other posts and the shop manual regarding replacing the pinion seal. It looks like I need a dial-type torque meter (0-30 inch pounds?) to set the bearing pre-load. And a flat piece of steel to hold the yoke while I attempt to loosen the pinion nut. I've done all the work on our...

I melted the hose from the charcoal canister to the upper intake manifold as I forgot to hook it up after assembling the engine's top end. I capped off the port on the intake manifold and thought I had a winner. Well, after driving it for a week, a CEL came on. Autozone pulled the code and it's...

Our 1999 Mountaineer doesn't have heated mirrors. Would like to add them. Question: Is the wiring ready to go if I buy heated mirrors or do I have to add new wiring up to the mirrors? The mirrors we have just are powered and have puddle lights. Thanks. I also want to figure out a way to make...

A week ago I installed the rebuilt heads on our Mountaineer (long story, see previous posts of mine). The EGR system is all new - EGR valve, DPFE, and EGR solenoid. The PCV valve and hose assembly is also new as well as all gaskets, hoses, filters, etc. Our Mountaineer has pinged since new, even...

Hey, just wanted to let other owners know about a problem I solved. The Ford Mach radio in our 1999 Mountaineer has been making weird buzzing noises which I isolated to the CD player's loading motor running. It's been cycling for over a year now. The CD player thought it had to load a CD even...

I've got the engine back together from the broken intake manifold bolt fiasco. I was missing the EVAP hose to the canister when I got it running so capped the vacuum port. I found the hose the next day melted to the exhaust manifold. I now need the new connector for the end of the hose to be...

OK, got the rebuilt heads on and buttoned everything up together today. It runs great but I have one question. There's a vacuum port sticking up at the front of the upper intake manifold, right in front. Pointing up at 12 o'clock. I can't seem to find anything that connects to it and don't...

I'm trying to assemble the 5.0 liter V8 in a 1999 Mercury Mountaineer. Some of the head-bolts have a stud protruding from them. The book shows only 1 side, and show 2 with a stud sticking up. The head-bolt kits from Ford only came with a total of 2 head bolts with the stud sticking up. Does...

Our '99 5.0 V8 is getting the heads reworked from the broken off intake manifold bolts. For only 77K miles and its life on Synthetic oils, the heads were in bad shape. Exhaust valves very worn - needs new ones. Valve seats are also badly receded. The Machine Shop says Ford doesn't use hardened...

I broke 2 of the front bolts that secure the lower intake manifold to the heads. They were seized with corrosion. The Dealer said it's very common. Anyway, I noticed the lower intake manifold, all 8 ports are black with likely the goo from the PCV recirculation system, EXCEPT for the very back...

Well, our 1999 Montaineer V8 has been losing coolant very slowly. So I noticed some antifreeze leaking at the front of the intake manifold. Pulled the upper plenum and went to first re-torque the intake manifold bolts. The driver's side front bolt wouldn't turn. I soaked it with various...

We were at the local Ford Dealer today buying a $1.80 part. Talked to the Service Manager about the ongoing pinging and he told me "when they've verified all the normal things - fuel filter, EGR, mixture, etc" - they've solved many by going to a colder spark plug. I know too cold you can have...