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SUVs Mercury Mountaineer Mercury Mountaineer Maintenance and Repair
74 messages, Last post on Nov 22, 2009 at 8:04 PM
You are in the Mercury Mountaineer Forum. Your Hosts are steve_ & tidester
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Replying to: mnpaul (Oct 16, 2007 2:50 pm) |
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Any advice appreciated! thanks!
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Hi jacksocd.... The filter is deep up under the front passenger's side, right inside of the running board and straight across from the transfer case. It's protected and hid by a small shield with a larger, silver heat shield (that runs diagonally) in front of that. You first need to relieve the fuel line pressure by depressing the bike tire valve located on the fuel rail on top of the engine under the big black cover that covers the whole engine. There are only 4 nuts that hold the big cover on, and once you remove those, remove the hose  the back of the cover from it's hose guide and the cover will be free to be removed. Then you'll see the tire valve in front of you on the right side sticking up from a metal tubing line. There should be a black valve cover on top of the valve. You'll need to have a rag ready when depressing the valve since a good amount of gas will be relieved and it's under considerable pressure. Be sure the engine's not real hot when you do this just in case gas spills on the engine. Once the pressure is relieved and you've jacked up the passenger's front side of the car, crawl under and try to locate the two fuel lines coming from the tank at the rear of the vehicle. The filter is located just past where they make a 90 degree turn. You'll need to remove the diagonal, silver heat shield first. There should be 2 bolts on one end, and I think 1 on the other. Once it's removed, you should see a small cover that has two hex nuts with the filter being on the back side of this cover. Once it's removed, you'll notice there is only one line going to the engine and two coming from the gas tank. The fitting for the engine side requires a special tool that's readily available at any checker auto, advanced auto, type of store. When you get the fuel filter from the store, get the tool too so you can be sure you get the right size of tool. There's a latch that first has to be popped up that is hooked on the end of the fitting facing the filter. It just pops up then the special tool clasps around the nipple of the filter and pushes into the fitting.....towards the line going to the engine. As you squeeze the tool together around the nipple of the filter, push the fuel line away from the filter and it should just push right off. The tank side lines are a different fitting and don't require any special tool, but they're a bit of a pain to figure out since the way to release them is not readily visible. Use a very small screwdriver and put it in the trough of the maroon tab that should be facing you and pry the tab out. That will release a tab that should then be free to hang down. This has to be first released so you can then push it back up through the fitting where it has been clamped in place around the nipple of the fuel filter. It should pop through the top side of the fitting, and you can reach up and feel when it is protruding up. Once it is, the fitting should be free from the filter and the line can be pulled off of the filter. Be aware that gas WILL run out of the hoses, so you don't want your face or anything electrical right under the lines. It only takes a couple minutes for them to completely quit dripping after the short section of gas line has emptied. The new filter goes on in reverse order, and the fittings push right back onto the nipples of the filter. You should definitely feel a 'click' on the engine side of the filter when you push the line back on, and the gas side lines need to be pushed well onto the filter nipples before pushing the clasps back down and latching back the maroon tab. Write back if this doesn't make sense or if you have any more ?'s......... |
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Replying to: fmota (Jan 11, 2007 8:32 pm) |
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Replying to: rodandkyn (Sep 11, 2007 1:46 pm)
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Replying to: bruceybeee (Nov 18, 2007 10:14 pm)
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Our '99 Mercury Mountaineer starts fine, idles fine, the engine revs okay when in park BUT when you put it in drive or reverse and push on the gas it stalls. We just got a full tank of gas yesterday and I'm wondering if there may be water in the fuel. I was going to buy Dry Gas and/or Gumout to see if those would help but wanted to see if anyone had a different idea. Thanks for your help! (By the way, it's been about 20 degrees here lately and my daughter's been driving the vehicle pretty close to empty!!)
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Replying to: jennap (Dec 09, 2007 5:40 am) Minnesota here---so very cold and very similar issues with stalling as you probably saw in my discussion threads. The Gummout worked well initially, but after 4-5 tanks of gas, the stalling started again.. I added a bottle of HEET and once it worked through the stalling ended. Now I am adding a bottle every other FULL tank of gas, and so far, its curing the stalling blues. We are thinking that there is a condensation build up in the fuel line or tank (no auto expert here) but the simple solutions seem to be working the best  Good luck! Paul
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