Ford F-150 (2004-2008) :: Slow Coolant Leak?
Sep 30, 2014
I have a 2006 F-150 XL with the 4.2 V6, auto that has a slow coolant leak that I cannot find.
I bought the truck this spring, 190K, drives good, but it leaks coolant. I have added probably 3 gallons of water this summer, this does not bode well for winter.
I can't see any wet spots or steam, but do smell anti-freeze occasionally from outside the cab.
I don't really want to try easter-egging the repair (replacing things that might fix it).
How to find the leak? Or should I just use some form of stop leak.
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2008 Highlander - super slow coolant leak. Dealer can't find it via pressure test. Never trips sensor, but after 6 months or so, the heater doesn't work well unless turning to the left. Has happened since new, but now Just out of warranty. Dealer has recorded two pressure tests and leak, but I'm wondering what to do.
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I have a 04" GLI and I was thinking about doing a coolant flush. Looks like I have a slow leak. I was wondering where should I look in order to stop the leak. Put some coolant in about a month ago and now the coolant light is back on. Every morning when I pull out of my driveway there is a small leak under the driver side of my car. Is this an easy fix? If I do decide to do the coolant flush myself what is the recommended coolant replacement?
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So went to move my truck after getting 30 inches of snow last night, noticed yellow underneath my truck, backed up the truck and then noticed it was also dripping down off of the back of the muffler???? Moved my truck about 25 feet away and let it idol for 20 minutes as a plow moved the snow, kept checking but no more leak? Just checked again, and there is plain old water dripping from under the truck where the snow is melting but still no more yellow. Can coolant leak and rundown down the length of the exhaust and then collect and drip? 04 f150 fx4 5.4
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I have a 2006 F150 screw 4.6 auto 116k miles that has evidence of a small coolant leak where the intake manifold joins the head. This is on the drivers side directly under the thermostat housing. The t-stat housing is dry and the hoses all appear dry. It's just wet right at the gasket where the manifold joins the head. Reservoir is still normal so it's not leaking too much just yet.
I searched this site and youtube but didn't find any other posts. Lots of problems with older trucks with composite manifolds but nothing for this one. It looks like a part of the bottom of the manifold is plastic but the entire top and where it is leaking is all aluminum.
It seems odd that this would start in the winter time just driving back and forth to work (no load). And, yes the antifreeze is good. Just wondering if this is a known issue with this truck. Is it just a matter of replacing the gaskets or is there some other flaw I should be concerned about?
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New truck to me. Truck was advertised with a slow coolant leak. Figured I would trace the leak down and get it repaired no issues. Anyway, working on it this evening I take a close look around the oil filler area and notice the dreaded milkshake color.
I drained the oil out of the truck and the oil actually came out nice and black. Is the headgasket the only area that would cause the oil/coolant mixture? Supposedly the truck has never been overheated.
At any rate, on to find articles on how to pull apart a 4.6L Triton head. I'll see if I'm up to this challenge.
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One last issue with my 2000 B3000 3.0L. The leak seems to be on the left (passenger) side of the water pump very near where the bottom radiator hose connects to it. I can't find any loose bolts. It does not leak while driving the truck or soon after. It has to sit for several hours or overnight before it shows up. There are usually 3 or 4 wet spots where it drips from the water pump to the frame to the driveway. It is small enough that I only have to fill up my coolant tank every 1 or 2 months. Could this just be a small gasket leak? It's been happening for about a year or so I think. I replaced the radiator about 2 years ago. I've been expecting it to get worse or bust loose and have been checking it very often. I've never seen one not leak while running like this-has me puzzled.
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Van has 144k miles on it. It's been well maintained (see my other posts). I have had it since new (7 miles). The LIM was done preventively at about 75k miles (5 years ago).
Two to three years ago it started using/leaking etc coolant at a very slow rate. I would estimate somewhere in the 8-10 fl oz per 3-4 month range. As time has gone on it has been progressively using more. Now it is about 12-14 fl oz in about a month or 6 weeks. My "low coolant" indicator came on the other night. It had been a while since I added any coolant mix. 3-4 months anyway. It took about 1/2 gallon (US). There has been no "real" visible leak,up to now. I noticed yesterday when I was under it doing an oil change, that there was a "film" on the bottom of the trans pan. I followed the trail as best I could and it led me to the rear of the engine near the drivers front wheel. It was a small drop of coolant. (I tasted it). Don't try this at home... From the top of the engine looking in, I followed the upper radiator hose to the thermostat housing "pipe". It is very difficult to see in there. I took a few pix. [URL] ....
It looks like there is a little pool of coolant sitting near or under the thermostat housing that pools on top of where the transaxle bell housing meets the engine block. It's very hard to to see in the pix. Some of what looks to be damp, is actually shadow. This pool I believe runs down the back of the engine/trans, and then is blown on top the trans pan and undercarriage.
The van runs great, I want to keep it for the next 9 years. There is no coolant in the oil, or oil in the coolant. Unless the fix is fairly easy, the leak is still small enough that I am not going to bother with it until it becomes a large leak. The car runs cool even in the hot summer pulling a load. The only issue is the leak and that I have to add coolant every once in a while.
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My wife has a 2006 Touareg V6.
Noticed a coolant leak a week ago, refilled with coolant, and as of today the coolant warning has not come back, so whatever it is must be a very slow leak. Today I took the opportunity with the unseasonable warmth in Chicagoland to investigate.
Got the T-reg up on jacks and belly pan removed, ran the engine while inspecting the bay, didn't see anything.
After I shut the engine off, however, I noticed a small but somewhat steady dripping coming from roughly the middle of the front of the engine block.
Pulled the plastic cover off one of the pulleys, part # reads: 022 121 341. I couldn't find a match anywhere online, but I got tons of results for 022 121 011, which is the water pump.
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My son has a 2007 sonata v6, daughter has one too. Both have about 130K miles, and both developed slow coolant drip leaks. I took off both hoses on both cars, cleaned the crud from the housings and replaced with new hoses and clamps. Problems solved in daughter's car, not so in sons car. I note that it looks like the area below the thermostat housing is wet - and thought that was from the crud/hose situation. But he is still losing coolant, even more now that its getting colder at night, and I's sure its not the hose connection anymore.
The car will generally NOT leak when hot, only as/when it cools off. I.e. puddle in the morning situation.
Looking at the diagrams, it looks like that "housing" is really a connection to the crossover pipe, heater hoses, other stuff (throttle body heat) and also contains what looks like a temp sensor.
I suppose any of these are possible, but my first thought was either a leaky temp sensor (or possibly loose) or something more serious like a cracked housing, leaking o-ring, gasket etc.
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I have a small leak of greenish fluid (appears to be coolant) coming from a silver/aluminum tube that runs the length of my van, just above the left rear transaxle. The leak seems to be in the tube, near a support that keeps the tubing flush against the undercarriage. It is a slow leak, but it is dripping onto the transaxle/transfer case, and is beginning to leave a small puddle on my driveway -- gets a little worse each time I drive. I haven't noticed much loss of coolant in the reservoir, so not sure what this is and how to fix it. I have a photo. I am thinking the tubing might be part of the heating system.
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On my 1.8t jetta she is leaking coolant slowly. Just started when it got cold out. It is dripping down the oil pan right down the center. It is falling off the oil drain plug. Was reading that it could be the water pump leaking but then it wouldn't be in the center of the pan. Got it jacked up now so here are some pics.
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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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A few months ago I developed a slow leak in my drivers front tire. I took it to a local tire shop and they told me small sections of paint on the inner part of the rim that sits on the bead of the tire was corroding and flaking off causing a small air leak. They sanded it down and resealed the paint and it stopped the leak. I asked them if it happened to this rim, could it happen to all of my rims? They couldn't answer that, but now I think I know the answer. 2 of my other wheels now are losing air and I bet it's the same problem. Is there a recall of some kind? Dealer says since my car is out of warranty, they can't do anything.
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I'm trying to troubleshoot a leak on my 08' F250 with a 6.4 powerstroke. It's been dripping coolant when cold pretty aggressively. Once the truck heats up, the coolant leak seems to mostly go away.
Here's a picture of the drip, it's marked by a dart, so you can see the location from the top (second pic). The radiator house connection around the engine seems dry.
Pic from Top ....
What's hidden here that could be causing the leak?
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If I start it on a cold morning and leave it idling for 20 minutes it will finish warming up within a mile or two. But if I just take off driving right after I start the engine, it takes close to 10 minutes to finally start warming the cab up. Is this normal for these trucks or is it possible the thermostat needs to be changed?
I found this service bulletin, which matches a symptom my truck has. Is it possible the rolling fan at cold idle could be keeping the engine from warming up as quickly?
05-4-3 COOLING FAN CLUTCH NOISE - VEHICLES BUILT PRIOR TO 10/1/2004 - 5.4L AND 4.6L ENGINES
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I'm a new owner of a used 2008 Prius. Car only has 67K miles and other than the leak, appears to be in good shape.
I noticed the coolant was low in both reservoirs, filled it up (with the proper SLLC), but a day or so later the check engine light came on. Took it to mechanic (dealer is 2 hours away), he read and cleared the codes, then found the leak. Appears to be leaking where the lower hose attaches to the pump, so not sure if it's the pump or the hose that's the problem. I've also noticed that the pump seems a bit noisy for a few minutes after shutting off the car (of course, I'm new to the Prius so not totally sure what "normal" sounds like).
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The "stop!" check level! alarm sounded as I was parked last evening...
Looked under car and a gigantic pool of coolant flooded under my car.
Where to look under the hood for loose or broken clamps or hoses that may be the culprit. Which hoses (color?) are the ones to check?
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I have an 04 Excursion with a 6.0PSD. I am currently experiencing a coolant leak, not very bad at the moment but I would like to fix it. The coolant is running down the back right side of the engine and I can see coolant pooling on the pan on top of the motor, specifically the right side. I can see some moisture on the front of the engine but it is below the top of the engine and I do not think this would be the cause since coolant won't flow up hill. I can't see or smell any coolant flowing when the engine is running but see it at idle and when parked.
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my 05 is giving me these mini shakes when I accelerate and slow down. I also get a little bit at highway speeds. I was walking around the truck today and I noticed that the back right tire doesn't have a weight on it. I thought this was wierd. Could a weight have fallen off thus causing the vibrations, or is this normal for one wheel to not have a weight?
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06 5.4 screw. This truck sits in the garage all week long as I drive a work van daily. When I take the truck out on the weekends it starts up normally at the house and when I stop someplace for a few minutes it starts right back up but if it sits for an hour or more it will crank over for 10-15 seconds, it does always start back up. It always runs and drives fine, it is all factory as far as the motor, intake, exhaust, tuner etc. What to do with it.
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