Ford - Explorer :: Coolant Expansion Tank Empty While Hot And Cold - Radiator Leak?

2007, 4.0L, Explorer, 113,000 mi. Week ago noticed coolant expansion tank empty while hot and cold. Looked inside ex. tank and looked like it had not seen any action in a while. Looked inside radiator and coolant level was about 1 inch to 1.5 inches below bottom of rad. cap would be...approx. level with rad. seam, where black plastic top of rad. attaches to metal portion of rad. I filled expan. tank to "cold fill" line. Kept an eye on it while doing light, around town driving. The expan. tank level (cold-fill) didn't change.

Friday, my wife returned from work (30 mi., interstate drive). After being parked for 45 mins, went out to find fluid puddle at very front of car. Expansion tank was empty. Looked in radiator, and it was about one inch to inch and a half below bottom of rad cap...about level with rad seam, where the black plastic top is attached to metal. I topped off the rad. this time, along with filling expan. tank to cold-fill line. Turn car on, and after warming up coolant starting coming out from what appeared to be the seam at the top of the rad., where the black plastic portion meets the metal part of the rad.

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Ford - Explorer :: Coolant Not Returning To Radiator From Expansion Tank

Last week during a hot/long day on the road, my engine temp gauge started fluctuating between 1/2 and almost 7/8 on the gauge. The weird thing was that it was fairly stable most of the time, but every 10 minutes or so, it would heat up, and spend bout 15 seconds at the high mark before dropping down again. It didn't seem to be related to rpm, A/C operation, or driving intensity. When I got home, and let it cool down, I checked the coolant level. I couldn't see any coolant in the radiator, but the expansion tank was nearly full. I guess the low coolant level can explain the symptoms above, but I can't figure out what is happening to the coolant.

I took the car to a mechanic and had a pressure test, which didn't show any leakage. I had a new thermostat and radiator cap installed. They flushed the system, and tested the hose between the expansion tank and radiator. After driving the car home, the coolant in the radiator had already dropped to the point where I couldn't see it, and the expansion tank was 3/4 full. Now, I am planning to keep track of the levels of both reservoirs (and refilling the radiator of course) to see if the fluid is leaking, or if it is just not returning from the expansion tank. Hopefully this bit of knowledge should locate the problem.

The successful pressure test leads me to believe that it isn't leaking externally. However, I'm wondering if there is a small enough leak that wouldn't be detected by the pressure test, but is significant enough that it would allow air in when the engine cools instead of pulling the fluid back from the expansion tank.

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Ford - Explorer :: 2002 - Transmission Fluid Leak

How I could take my ford explorer 2002 in to the shop to replace the radiator and come out with transmission fluid leaking. The mechanic said it is some kind of hose but it wasn't leaking before and after I drive I can see it dripping out. I'm just not sure if they messed up something. Unfortunately my husband is overseas and cannot check it.

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Ford - Explorer :: 2008 Limited 4.6L - Small Coolant Leak?

I've got a coolant leak on the drivers side of the radiator. I don't drive the vehicle that much because I use it primarily for towing in the good weather seasons. I drive it once a week unless we have snow than I drive it more.

I have seen small amounts of coolant (yellow/gold) in the snow when parked. It does not appear to be very much, but it does concern me.

Anyway, here is a link to some pictures : [URL]....

Where to look for this leak. I looked from the bottom and the top (without access to a lift) and I couldn't see anything revealing.

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Ford - Explorer :: 2008 - Sound At Start Up At 63K Miles - Exhaust Manifold Leak?

I purchased my 2008 Explorer Ltd about 4 months ago with a 4.6L and 63k miles. I use it for towing a small travel trailer, so I don't put many miles on it. It's got about 66k on it now. According to OASIS, it has had all MFR maintenance performed up to the 60k mark.

In the past two months, it has developed a "sound" on startup. it goes away after about 75 seconds. To me it sounds like a typical exh manifold leak. That "3 cylinder, putt putt putt tractor" sound. There is no apparent affect on performance. It is definitely coming from the area of cyl #1. I have a recording here.

[URL]....

It is the "higher" of the sounds. The lower pulsing/whooshing is just regular engine noise. You can hear the regular engine noise as the camera pans to the back of the car.

What puzzles me is that the exh manifold sound goes away after 75 seconds or so. Holding the tailpipe shut for a bit builds up lots of pressure quickly. Do you think it IS, in fact, an exh manifold leak, and it seals up with thermal expansion as the engine worms up (75 seconds)? Is this a typical issue with the 4.6L

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Ford F-150 (2004-2008) :: Transmission Developed A Leak

I have an 07 with a 4r75e transmission that has developed a leak. The truck has 60,000 miles on it. I looked under the truck and it is not leaking from the pan. I plan to put on stands and get under it tomorrow to see if I can find the leak. Where I might check for the leak?

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Ford F-150 (2004-2008) :: 2006 STX - Oil Leak Coming From Where Transmission Connects To Engine

2006 STX 4.6 .... I recently changed my oil a couple of weeks back. I've noticed spots of oil on the driveway. I thought it may be coming from the oil pan drain plug but i checked it and it seems to be coming from where the transmission connects to the engine. Lotta oil on the bell housing. That's where it looks like it's dripping off of. Could it be the rear main seal?

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Ford Super Duty (1999-2016) :: 2008 F250 - Transmission Cooler Line Start To Leak

I have a 2008 Ford F250 V-10 Superduty and recently I had a transmission cooler line start to leak. I ordered replacement lines and the tool for the quick disconnect. The line that's leaking is from the radiator to the quick disconnect. I was able to replace the one line, however the second line (problem area) has been a nightmare. The line cracked right at the quick disconnect fitting.

The hard line is tight in the fitting and corroded. broke the tool trying to remove from disconnect. The line is flush with the quick disconnect. How to get that out of the fitting? or another method of fix? Its a hard 1/2 line going into connect crimped to rubber line going to transmission.

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Sonata NF (2006-10) :: 2008 - Oil Leak Mainly Around The Passenger Side Of Transmission Area

Transmission Oil leak ... I have a 2008 Sonata 2.4 Auto 60,000 miles just noticed a small transmission leak it isn't leaking much but is definitely there its around mainly the passenger side of transmission area close to drive shaft but is hard to pin point.

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Ford - Explorer :: 2004 Explorer - Transmission Seal Blowing When Under A Heavy Load

I'm in a situation where I may be having to tow my 3500# boat/trailer with my '04 Explorer 4WD (this is well within the max tow limit, per the manual). I have the 4.0L with the 5 spd auto tranny and 3.73ls gears. I've towed the boat a handful of times with this vehicle and had a good experience every time. Now I'm looking at this being my primary towing vehicle, towing once or twice a month in the summer. The car only has 48000 miles on the ticker and is in pristine condition, so mechanically it's sound.

I asked my mechanic what he thought of this arrangement and he hates the Explorers, so he's giving a biased response. Have any of you towed something on a somewhat regular basis with this, or a similar, vehicle? Any issues? My mechanic keeps going on about the transmission seal blowing when under a heavy load.

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Ford Transmission :: Transmission Leak Around Vacuum Which Wobbles Like It Is Loose

I have a transmission ('86 Bronco C6 transmission without OD) leak around the vacuum which wobbles like it is loose and around the square bolt behind the kick down assembly. What do I need to fix these leaks? I am planning on changing the pan gasket as well because it also has a leak. I will change the filter while in there if it looks bad. It probably has not been changed since '86.

Also, can I use a solvent caustic degreaser for cleaning the outside of the transmission. I have been trying to clean the bottom of the truck for painting and even point blank pressure washer will not remove the grease caked mud and I need something stronger to remove it.

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Ford - Explorer :: Radiator Leak / Antifreeze Dripping

I've got some dripping of antifreeze on my 2000 Explorer. I figured maybe I'd try a recommended "stop-leak" product...

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Ford - Explorer :: Leak Fluid Out Of The Thermostat Housing

My explorer with 4.0 sohc is starting to leak fluid out of the thermostat housing. How hard is this to do and what can I expect in cost to do it myself. I dont drive this explorer but about 2 miles each way to work as I live on a military post. I have been putting it off ( just keep adding coolant and water) every couple of days. I have noticed that the engine temp doesnt not get up to half way like it use too. Maybe 1/4 of the way on the gauge now. I have always flushed coolant system very two years. It is starting to get some rush in the overflow bottle now too. Other then that she runs good and no other engine issues. She does have a 136k on her.

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Ford - Explorer :: 2010 V6 - Coolant Leak - Level Goes Little Down?

I have 2010 explorer. I have to add almost 200 ml of coolant in my reservoir every week. there is no sign of a leak from anywhere even at thermostat manifold as well. but one question, when the car is running for at least 1 hour, the coolant level at reservoir shall be around FULL HOT Level and when car cools down overnight, it should be at around FULL COLD LEVEL. is it right? if yes, then my level remains little more than FULL COLD when the car is hot and when it cools over night, level goes little down than FULL COLD. like this every week I have to add almost 200 ml of coolant. radiator CAP is okay and I replaced it few months back. no apparent sign of leak. any clue what can be reason?

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Ford - Explorer :: 2006 4.0 SOHC - Small Vacuum Leak

I'm having a little bit of trouble finding the cause of a minor problem on my 06 Explorer with the 4.0 V6 engine. When the engine is running cold at idle, it runs a bit rough and idle speed is high as well. When fully warm, the engine runs and idles fine. I hooked up a scan tool and there are no pending or stored codes. The live data looks ok except the long term fuel trim which is at about +10% on both banks during idle, indicating a lean condition. Short term fuel is right around zero. The MAF and TPS values seem to respond fine when applying steady throttle.

So I assume there must be a fairly small vacuum leak somewhere that the PCM is able to compensate for since the long term is only at 10. I didn't see anything obviously wrong, the vacuum lines look fine along the passenger side near the firewall. I sprayed a bit of throttle cleaner along the hoses, intake manifold and gasket area, but could not spot any vacuum leaks. Any other common areas to check for leaks on the 4.0 V6? Perhaps there is something I am missing?

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Ford - Explorer :: Got Code PO442 - Vacuum Hose Leak?

I popped a code this morning PO442 emission control evap [small leak]. Would this be a vacuum hose leak? I did both heads about a month ago. Any way to narrow down the troubleshooting on this problem?

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Ford - Explorer :: Coolant Leak / Puddle On Driver Side

I looked at a 99 with a 5.0 and noticed a puddle on the driver side, a little below and inboard of the power steering pump but outboard of the water pump. The puddle was higher than the water pump weep hole and it was in a racetrack oval shape. I was unable to see where the leak originated and I couldn't tell exactly what part/housing the puddle was sitting on. Obviously, the leak had originated from above.

I don't think it was coming from the upper radiator hose as I remember the upper radiator hose being more on the passenger side and I don't recall any heater hoses in the area. The only things that came to mind as the potential leak source were the intake manifold and the sensors on it. Are the 5.0 intakes prone to coolant leaks? Other than hoses, what else would be leaking coolant on the driver side?

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Ford - Explorer :: 1997 - Radiator Has Developed A Small Leak

After 150,000 miles, the radiator has developed a small leak. Question- do I have to remove the fan or can I just unbolt the shroud and push it back to slide the radiator out? I don't have that special wrench to spin off the clutch fan. 1997 Explorer 4.0 ....

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Ford - Explorer :: 2002 - Rear Differential Fluid Leak

The rear differential center section on my wife's 02 Explorer has a slow drip that appears to be coming from the rear cover plate. I have worked on the solid 8.8 and 10.25 axles but never on a independent center section. Does the whole center section have to be lowered to change the seal on the cover? If so, do the axles have to be pulled to do so?

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