Last post on Oct 26, 2013 at 4:56 AM
You are in the Ford Explorer
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Ford Explorer, Mercury Mountaineer
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Jul 03, 2005 (9:17 am)
alman08: Yes, you can pull a heavy load with that Explorer. The combination of the V8, Transmission and rear Axle is supposed to be very strong. I have a 1997 XLT and a 2000 XLT, both with You did not mention WHERE the leak was coming from, but since it was whinning and then leaking in each case, I would assume the two are directly related, likely the pinion seal was where the leak was at. The only other points of leakage would be the rear cover or the axle seals. If there is a problem with the pinion bearings and they develop play, this will cause the pinion gear to misalign with the ring gear and make the whinning sound. The play in the pinion bearings will allow the pinion gear shaft to wobble, which causes the pinion seal to fail and leak. The whole thing is simple to fix correctly, but must be done by a pro. I've built several of these rear axles, but I can't get into the nut and bolts of it here. When those rear axles are properly set up and properly lubed, they should give well over 200,000 miles of reliable troublefree service. The secret to them doing that is being SETUP correctly, and LUBED correctly. You are having failures because the rear axle has not been set up correctly. The proper SYNTHETHIC lubricant must be used, and be sure the rear axle is full up to the fill hole. Unfortunately, you are having to deal with the dealer, so you will have to stress again to them that you need it fixed correctly, and that you might devulge some information that you have heard, like the pinion bearings are real critical to the operation of the real axle and the seal.
I have posted about this subject before, try searching for the posts below:
#1251 99 Explorer Rear Ends by bigalds on 03/02/2002 can't remember which forum.
#2151 Comments on Ball Joints & Rear Axles to all by electricdesign on 12/31/2004 on the Ford Explorer/Mercury Mountaineer forum
(those where some of my previous screen names)
#3952 of 6400 Re: rear end whine/leak [alman08]
Jul 03, 2005 (2:13 pm)
There are many post here about bad differentials on the newer Ex's. They are having problems with them. I would load the car up and see if it fails again.
My guess is that since you have heard the whine several times your pinion gear and ring gear are now highly suspect (bad). The pinion gear is supported by a bearing - I think that bearing is worn / damaged, and is causing the seal faillures. Stressing the rear pinion bearing ( which is what you are doing when you put a lot of weight in the vehicle) apparently causes enough movement to damage the seal.
If that is the case, the ring and pinion gears will be wearing incorrectly and you will get early rear differential failure.
I would be talking to the service manager at this point. Multiple seal failures is not normal, and you need to let them know you are aware that these differentials are having problems. Certainly, if it occurs again, I would not accept only the seal being repaired. That is just the symptom, not the problem. Multiple rear seal failures would be enough reason for a service manager to approve more extensive work.
Next time, I would insist on a differential rebuild.
#3953 of 6400 Re: transmission problem [ptruckle]
Jul 04, 2005 (1:52 pm)
Actually, your description sounds to me like a bad motor mount.. Clunking and thumping are typical descriptions of what happens when you shift into gear and your motor mounts are bad.
Also, "suspension seizing" - I think you are feeling the engine move.
Have a mechanic check your motor (and transmission) mounts. You must do more than a visual check to be sure they are good.
#3954 of 6400 04 Mountaineer - big clunk at crusing speed at 70mph
Jul 04, 2005 (6:10 pm)
04 Mountaineer - big clunk at crusing speed at 70mphJust this afternoon cruising my 04 Mountaineer v6 (24k miles) at around 70mph and all of the sudden there was a big clunk coming from I believe the transmission. It felt like as if it was trying to change gear as it did give it a little jerk. This is the first time this happens and I can not seem to duplicate it. Due to the popular reverse delay\clunking problem that has been going around with the 02-04 explorer, I had recently taken it to the dealer to have them replace the solenloid.
However, the incident this afternoon led me to believe there is apparently still something isn't right about this transmission. This really worries me....
#3955 of 6400 thanks electricdesign and exploded
Jul 04, 2005 (6:11 pm)
thanks guys, i will mention that to the service mgr again since right now i don't see any leak but i still am hearing some whining especially when driving between 35-40mph.
electricdesign, it seem to be leaking from the middle of the rear diff, but then the dealer said it was the left seal, then the right seal, then the left seal again...
#3956 of 6400 Chirping, sensors and whines
Jul 05, 2005 (4:35 am)
I look forward to hearing what progress other people make with this a/c chirping noise. I bought my 2005 Explorer XLT just a couple of weeks ago and the chirping started practically immediately. I'll be mentioning this to my dealer when I take the truck back to the shop for another warranty repair in a week or so. With less than 400 miles on the vehicle a sensor inside the gas tank developed a "hiccup" (service manager's terminology, not mine) and must be replaced. Of course it's going to take a couple of weeks for the part to come in. Now the gas gauge works part of the time and the "Service Engine Soon" light is on constantly.
Another "odd noise" I have noticed is a whine that comes and goes when accelerating from low speeds. It's there mostly when I start moving from a dead stop and I gradually accelerate until I reach a higher speed and then it goes away. It almost sounds related to the transmission. Sometimes it's louder than other times. I would be interested in hearing if anyone else has noticed this noise.
#3957 of 6400 Re: 2002 explorer grind in wheels [broncoguy1]
Jul 05, 2005 (6:49 am)
I too have had trouble (actually replaced!) my hub & bearings on my '02 Mountaineer! No, they are not cheap by any means. A mechanic friend said that he could actually make a living on just Explorers & Mountaineers hub & bearing replacements! What gives?! Not sure why they don't recall them - all that I have been hearing are stories with similar problems. Actually took mine in this morning for more work!!!
#3958 of 6400 Re: 2002 explorer grind in wheels [cartrouble1]
Jul 05, 2005 (10:10 am)
Hope everything went well with your vehicle appointment Cartrouble1. Other then the Hub and Bearings I love this truck, going to see if the local bearing shop can find similar or better bearings for me. My truck only has 85,000km or 53,000 miles, Hub and Bearings should last alot longer then that. To bad they did not make a way to grease them every now and again. But the manufacturers would rather you buy new then maintain what you have, it is all about the money.
#3959 of 6400 Re: transmission problem [exploded99]
Jul 05, 2005 (10:33 am)
thanks for the reply will do as you say but i have quite a bit of mechanic know but no nothing of the american explorer i have checked all the mounts visuale and with leverage but everything seems fine, as i drove the car to work on monday there was no sign of any problem with the car but when i whent to come home i had only done a few yards and there was the clunking and uneven ride again , do you think that it it is worthwhile to go and have the car put on one of those elec testers at a ford dealer,as they only deal with the ranger over here i am a bit sceptical about their equipment to get a true reading
thanks again for your assistance,
#3960 of 6400 Re: Chirping, sensors and whines [jeffb66]
Jul 05, 2005 (12:01 pm)
You have mention two problems that you will probably be returning to the dealer for often. We have a 2004 NBX Explorer with the V8 and have experienced these problems several times. The problem with the air conditioner is the clutch mechanism. Ford is aware of the problem and is working on it. Their fix for it right now is to readjust the clearance to 2.5 mm. This is a temporary fix, ours was adjusted and the problem is returning in less than 5000 miles. Ford is looking for a long term fix to the problem. Several owners have complained about the noise.
The second problem with the whine in the axles or transmission. We have experienced the same problem. So fare we had the whole rear end replace, then just the internal gears and pinion. We still have the problem and our vehicle is on its way to the shop this week. We have had the local dealership check the problem on several occasions other than when they actually replaced parts. Basically, if the fan switch is set to 3 and the problem can be heard then they will rebuild it.
We are also now experiencing the problem in the front axle. During the last warranty repair of the rear axle we had them check the front. They did nothing at the time. Now the problem is much worse and can be heard over the fan being set to 4 and the radio playing. Good luck, there is a problem here and I don't think Ford has a fix for either problem above.