Ford F-150 - 1997-2003 :: Coolant Leak On The Upper Intake?
Mar 28, 2006
I have a 1998 Ford f150 4.6 2x4 i have a coolant leak on the upper intake. It comes out on the back left of the intake through a metal pipe. Well where the metal pipe is (pressed in) to the intake. Now i talk to the guy at ford dealership in the parts he said it is called the (heater pipe). He also told me that the part is 21 dollars but I have to press it in and if that does stop the leak he said I would have to buy a new intake. Now here is the problem I can not find any info regarding this heater pipe. I don't know how to remove it properly, why it is leaking. I can't find it in the handbooks that i have read so far.
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I just replaced the engine in my F--150 with one from a van that had only 60K miles on it. It still runs rough and misses. Not as bad as the earlier engine that had dropped a valve. While trying to find the problem, I moved a large vacuum? hose at the rear of the engine maybe 1 inch diameter and it nearly fell off the barb at the back It is also connected at the other end to some type of small metal can. When I pulled on this it fell off and the engine died.
Also need the smaller 5/8 in diameter hose at front of air intake tube. I need a size or a pert number for this hose as I cannot crawl back onto the motor very many times due to a spinal problem. I would like to get this hose and then get under the firewall only one time. I am having issues with this truck, bought is used at auction running rough. Replaced engine with one that was supposed to be a good one, but it runs rough again..
I need to add that New platinum [plugs were installed and the coils were off the old engine that had maybe 50 miles on them and were from NAPA. I only hope htis hose is my problem. However I cannot find any part number or anything on it...
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Coolant spilled on my upper intake manifold. I washed it off to the best of my ability but when i started the car white smoke came from tge exhaust. What my next move should be?
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I have a 03 5.4 F150 SCrew... The intake was leaking on the passenger side (water outlet tube meets plastic).
Putting in the Dorman replacement and noticed that the front cylinder drivers side (#5) had a decent amount of coolant in it.. None of the others did. I've drained the coolant already and was wondering should I just put this back together and see?
The water outlet crossing has a hole right next to this cylinder and I can't see any cracks and not sure if the gaskets were leaking under it.
Seems like if the head gasket was blown I would see it in more cylinders? It never smoked or run bad before I got this leak... Drove it maybe 10 miles with it leaking out onto Cyl#1. Ran fine, never missed.
I just don't want to put this back together if the head gasket is blown but I don't know what to do.
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I've got a 1997 F150 with the 4.2L V6. Before I got it last summer I did some research, but apparently missed the issue with the intake manifold gasket leaks on these early engines. It seems to be a very slow leak, but obviously I want to get it fixed. I called Ford to see if it had had the recall work done on it, but all they could tell me is that there wasn't an open recall on my truck (with the exception of the recent fuel tank strap recall). Their system apparently only goes back 10 years, so they couldn't even see the freakin' recall. So, I've got a few questions:
1) I know I didn't post much info, but does this seem like an intake manifold leak?
2) Are there any special tools needed to change out the gasket myself?
3) Can you all recommend any replacement gaskets? I found a few different manufacturers of gaskets, but I'm sure some are better than others.
4) Can this issue cause the computer to throw the loose gas cap code (P0455 if I recall correctly).
5) Would it be worth it to just get a new truck? I really wanted a diesel in the first place, but I also hate to give up on a nice truck with only 115,000 miles.
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Two weeks ago I was driving home from work and my heat stopped working. I pulled over and saw coolant dripping badly out of the bottom of my truck. I popped the hood and sure enough, coolant was bubbling out of the front passenger side of the intake. I took it to a shop to do the work (quoted at 500-550 out the door with a dorman intake). A week goes by and I get a call from the shop, "After two Dorman Intakes, the truck is not running right", what it could be.
The truck has 367k on it (not sure if original motor). Yesterday I get a call from the owner, " we put the original intake back on and fixed the leak with jb weld. The truck still runs bad. They claim they didnt do anything wrong and will not take any blame for ruining my engine. (Keep in mind the truck ran PERFECT when I took it in there). The truck doesnt throw any codes and they are at a loss of what could have happened. They put in 8 new plugs and 2 coils that they broke while in the process of removing the intake. F150 5.4 ...
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I have a 2001 F150 Super Crew 5.4. I had a leak where the water transfer connects to the intake manifold. I decided to get a new manifold rather than trying to repair it. The new manifold from Dorman came and the gaskets were built into the manifold. I torqued the manifold to specs. I replaced everything and it starts fine.
I can hear what sounds like a leak, but can't find anything. I checked every hose that is connected and they are all snug and connected. I had the check engine light checked and it said it was running lean on both sides (p0174, p0171). Also a p0122. I thought something might have damaged the Throttle Body Position Sensor, so I replaced it...but no change.
I'm still driving it everyday because I need to. It won't change gears so smoothly sometimes. The most noticeable problem is that the A/C doesn't work. It just blows hot air. And the worst part about it is...it does it even when the air isn't turned on! I just go around with the windows down...in 95+ degree heat...with hot air blowing!
This is my first time to attempt a manifold change out. What I should check?
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My 2003 f150 4x4 w/5.4 has 220k miles and only minor issues until a few days ago. I now have a coolant leak at the mating surface (both sides left and right) of the aluminum crossover coolant manifold (holds thermostat on one end). I have most of the bolts out to remove the crossover manifold but there is one bolt on the RH side that comes from the underside. All things equal, main question is... Can that crossover mainfold be removed independently from the intake? My thought is that in order to get to that last single bolt (there may be others I am not aware of yet) that I will need to remove the intake.
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I have a 2001 F-150 5.4 engine. There is a coolant leak where the coolant leaves the head. Looks like a new gasket is in order. The part that needs to come off crosses over to the driver's side and the thermostat mounts into it. To remove this part and replace the gasket, it appears that most of the top of the engine, throtle body, fuel rails, intake, etc., will have to come off. One of the four bolts holding the part on is installed with the bolt head facing down. The only way I see to get this out is to take everything apart.
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My '02 F150 180k X-cab with the 5.4L is leaking coolant when it is shut off. Its just pouring right out.It looks like it's coming from top of the trans and around the firewall area. I had to replace a drain plug already.. the one behind starter ..its not leaking.
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My truck is leaking behind the engine. There is not any coolant on top of the engine. It's leaking above the transmission and running down the passage sides. Are there any hoses that could be leaking behind. Sometimes it leaks a lot other times it doesn't leak at all. The shop thinks it's a freeze plug but wouldn't it be leaking more if it was?
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1998 F150 4x4 4.2 ... Small leak spraying out of a steel pipe onto the front of the motor. This isn't my truck so I'm not very familiar with it but looks like there is a pipe that come from the water pump threw a bracket and y's and one end has a hose going to heater core n the other part is where the leak is I think it has a hose connected to it that goes to the intake. Only leaks when thermostat open. I'm going to take it apart tonight n see what I find. Iv looked for a replacement part and found nothing so I am going to try n replace the steel pipe with hose.
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Only when running heat or defrost, coolant leak looks like it's coming out of the bell housing. I have a supercharger so very difficult to see behind motor, but with inspection camera, heater hose lines look dry. firewall looks dry. No coolant in cab. No steam on windows or smell. Pretty sure not casting/ freeze plugs because absolutely no leaking with heat off. Can run for days with no loss, then turn on heat and within minutes/ seconds coolant puddling in driveway. Is the hose that runs through valley pressurized only when heat is on? I saw a few older threads but as far as I could tell none specified heat on/ heat off conditions. Just started problem after doing some other work, hoses were off radiator and intercooler, replaced radiator. None of those connections are the culprit.
98 F150 Lariat 1900 TVS S/C Chiller Killer I/C 19PSI Snow performance WMI
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I just replaced the oil/egr cooler, stand pipes and dummy plugs along with all suggested upgrades, just filled with oil hooked up batteries and while filing with coolant it started gushing out from under the intake in front. I think I see an o-ring pushed out.. I hope I can lift the intake without removing the turbo!!!
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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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I have an 01 supercab. 5.4 Triton 135k. I have begun to smell coolant the last couple of days. Have seen nothing leaking and truck doesn't run hot.
Will investigate more this weekend. Where to start looking for this. It has to be leaking somewhere. Windows don't fog and the smell is there all the time. I live in florida so don't use much heat.
Not the heater core. Heat works fine and no smell from the vents.
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If you have a coolant leak at the y hose for the intake manifold and the thermostat, make sure you replace the upper radiator hose as well as the y hose.
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I have a leak on the right side of the cross over pipe. I removed one long bolt from the right side and two long bolts from the left side that go through the thermostat housing, and three bolts from the back of the alternator, but the pipe doesn't seem to want to move. I don't want to break anything.
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I have a 1990 F-150 w/351 that I knew had a coolant leak at the back of the engine when I bought. It's a tinker around truck, something for me to play with.
I've traced the leak back to a metal tube/pipe that sticks out of the engine compartment just below the AC housing. I cannot find anything in the Haynes manual or a diagram on the intertron that shows what this is and if it should have a hose on it or...?
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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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Repaired a coolant leak under the intake? I just repaired the bad o-ring and rtv at the front coolant bypass joint. But, there is still active coolant leaking around the back side of the block and puddling on the garage floor beneath the front of the transmission each night.
So, I'm guessing I need to start removing the intake to hunt this thing down, the top of the block, just under the intake is constantly moist. But I'd like to have a list of seals and parts I'll need to replace before I start.
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