Ford Excursion :: Coolant Leak Developed After Flush
Sep 6, 2017
I did a coolant flush following the instructions posted on this site. In fact I did a little more than just a flush - replaced degas bottle cap, replaced thermostat and installed a coolant filtration system.
There were no leaks before I started and the only reason I did the flush was that there was green antifreeze in it.
I noticed that there was half a gallon of coolant under it in the parking lot this afternoon - the degas bottle still has coolant in it, so I drove it home and inspected the thermostat housing and top radiator hose, as well as all fittings and hoses installed as part of the coolant filter. Everything was dry.
I tracked the leak to the lower radiator hose - the one thing I did not touch as I drained from the petcock. Coolant is running down the lower radiator hose.
Could the new radiator cap have increased the pressure in the system to a point where it identified a weak point that was not leaking before?
My temps are great, ECT is stable about 188F - 190F and EOT is stable around 192F - 194F. I ran it hard and got temps up to around 200F and they both came back down to 192F range very quickly when I backed off. They were actually running about 5F higher before the flush.
I will try running the old cap to see if there is a difference, but if the lower hose is the weak point I'd prefer to replace that and run the new OEM cap.
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I went on vacation, my 2.0T B6 developed a coolant leak at 35k miles. It's still in the shop but the problem has been identified as a leaky o-ring located toward the rear of the engine at the block. The SA told me that they've see quite a few of these in both Audi and VW products using the 2.0T.
I'm also getting a reflash for one of the recalls. I think it's the 03 recall but I'm not sure until I get the paperwork. So off I go in my loaner PT cruiser until I get the B6 back today....
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My 2009 Vue developed a coolant leak into the oil at 130k km. I had to have replaced. GM has a technical note about this exact problem with the recommended fix: Engine Replacement. The coolant was leaking into the oil at the water pump.
The Statement from the dealership states that there was a crack in the block near the water pump. The dealership was good but a block should not break like this. Is this a design defect with the block, and if so is their a class action already started?
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This weekend my friend and I plan on doing a coolant flush, new Mishimoto thermostat housing with high temp thermostat and install a Mishimoto coolant filter.
Truck currently has some unknown green coolant in it and Im going to replace it with Rotella ELC. I plan on doing a couple hose water flushes then follow with about 5 distilled water flushes. I've been reading about putting some Cascade in on first flush to dissolve any silicate goo that might be in there hanging out. I might give that a try. Im sure I can manage this part from all the stuff I read about doing flushes.
This is the part that looks like a little more work involved than the flush. Doing the thermostat kind of worries me because of the tight area in there to work with the fuel line and the EBP sensor being right there. The current thermostat holds temps around 175-185 under normal driving. I bought the new Mishimoto thermostat housing with the high temp thermostat installed in it when they had their pre sale going on for the housing.
I decided to just go with the whole thing because of all the stuff I read about people having issues with the thermostat not fitting the older housing correctly since Im certain I have the original housing from 2004, like everything else that's still original on my truck. I plan on removing the thermostat before doing the flushes and then installing the new housing and thermostat and coolant filter before I add the ELC.
The coolant filter install looks fairly simple to do so I should be ok with that.
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My 02 Explorer with the 4.6 has about 100k on her and I think it is time to change the coolant. ( I have only had it since 87k )
Should I flush it or just change it. What is the best way ?
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Noticed this leak today a few days after parking the Ex (V10) -- not a daily driver. Crawled under the Ex and checked under the hood but I could not find an obvious sign of where the leak is coming from.
I checked the coolant plastic reservoir and its on MIN -- I believe that where it should be when the engine is cold. I noticed that these trucks do not have a cap directly on the radiator. That plastic reservoir, is that where I would top off the coolant?
Is there a spot on these engines where it would commonly leak? Should I try to put some dye on the coolant and/or possibly pressure test it?
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So broke down today and have no tools, in a city I don't live in. Huge coolant leak behind the block on the passenger side. Luckily we broke down right at a mechanics shop. They need to take off the manifold to get to the rusted out metal piping in back.
I am new to the V10. Looking for information on what could be leaking back there? I know I could do this myself but I need to know what parts I might be dealing with first. And its tight quarters back there.
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So a couple weeks back I'm on expressway home and I look down and and temp gauge is pegged out overheating I immediately pulled off and shut it down and towed to a buddy of mine's shop he flushed it filled it up w antifreeze and checked for leaks and couldn't find one. I drove it for about a week and got out to for a quick stop , Ex parked on a slight decline and came out to prolly half gallon of coolant on the ground..I limped it to my buddies shop as it was not running hot .. he has checked it out but can't find any leaks, even after having it run 30 or so minutes..
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I have a 2003 Ex with the 7.3. There is a leak in the rear coolant line just in front of the rear right tire. Is there any way to bypass the rear heater under the hood?
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Truck has never been flushed. Would you try and back flush through oil cooler or just do a regular flush according to the procedure in the tech folder?
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I just had my oil cooler and EGR cooler replaced, and I'm now consider doing a coolant flush with Restore/Restore+ to ensure the coolant system is clean. I know this might be backwards and perhaps should have done the flush first, but schedule and such did not allow. I do have a coolant filter.
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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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I'm planning on doing the regular scheduled coolant flush but not sure if it can be done without any special equipment.
One dealer said they don't do many diesels but have a machine to do the refill and quoted ~200$. The other does more diesels but hasn't done a flush in a while and quoted ~500$ and said he does it old school by draining everything out and then water flush followed by refilling the systems.
Which one is right? Can it be done in the driveway? Which is the correct coolant for the refill and are any additives required after filling?
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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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I need to back flush the heater core in my 2000 EX with a 6.8. Looking at the outlet hose I don't see anywhere to separate it, do I need to cut the rubber section and put a flushing "T" in it ?
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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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So a dead thermostat forced me to drain the coolant in my E350 7.3L. I noticed the previous owner had green coolant in the van so I decided to do a flush and put in the right coolant. I used Shell Rotella ELC. Well, I noticed after coming home the other day that the van was leaking coolant, upon inspection I noticed its now leaking from the water pump, then today the drain valve sprang a leak! What the HECK is going on!? Is it possible that the seals were shocked when I changed the coolant? Not looking forward to doing a water pump replacement on an E350... sure is crammed under the hood.
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2004 VW Passat, 1.8L Turbo. So my coolant needs to be flushed since it doesn't look good and I for the life of me cannot find the t-stat housing or the water pump. I wonder if they changed everything in the 2004.
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Here is the thing, this did not start until after I got a coolant flush, and went to get some gas. I was thinking dirty fuel injectors, so I put the Lucas Fuel Injector cleaner in with the next full tank of gas, and it didn't do anything.
There is a ticking sound, and the car sounds like a freight train chugging. The car still runs and still has great performance than ever before (due to the new plugs)
Here is what I have done:
Ran motor flush
Changed oil + Lucas Oil Additive
Changed all 4 Spark Plugs (replaced crappy Autolite with NGK Platinum)
Changed Power Steering Fluid (flushed)
Changed Coolant (flushed)
Cleaned the throttle body and intake
Drained through and filled up gas again + Lucas Fuel Stuff
You can't really hear it from inside the car, and it only seems to be happening after the car has been warmed up. It does not happen during a cold start at all (in the mornings).
The ticking sound stopped for a bit when I ran the motor flush, and changed the oil. Now the sound is still there, but it is A LOT less annoying than before. The car also has A LOT better performance with the new plugs, I seem to be able to take off a lot better at lights.
Here is what I still need to do:
Change the engine air filter.
Double check the throttle body and intake.
It is a 2004 Camry with 182,000 Miles. The ticking didn't start until after it came back from the shop, which has me suspicious. Shop claims nothing is wrong, which is a load of BS.
What I am thinking:
Stuck valve
Lifters
STILL dirty intake (shop could have done nothing and charged me for it)
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After changing the timing belt and water pump I want to change the coolant. Stupid to have no temp gauge so I got a scan tool connected. Been idling 20 minutes and it hasn't gone above 189 degrees. Assume it has a 195 degree thermostat. I put fresh water in the radiator but still don't see it mixing with coolant in the block as if the thermostat has opened.
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I bought a 01.5 Passat a few months ago and it had developed an exhaust leak. So when I went to check under the car I found it was missing the catalytic converter.
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