Need engine part identified

[GaExpedition]

2000 Expedition with 5.4L

Been having a very slow coolant leak that I couldn't find till this morning when it started steadily dripping while running. Bad part is I have no idea what this part is called so I can get a gasket, o-ring or whatever it needs to be fixed. I attached a photo of the part in question. Its not leaking where the hose attaches to the top of it, but rather where it attaches to what I would call a "crossover pipe". The "pipe" it attaches to runs across to the water outlet on the driver's side of the motor. What is the technical term for these parts so I can get her fixed?

 

[toms89]

Not sure exactly which piece your describing to leak. If its the crossover hose fitting its not designed to be replaceable as far as I know.

The intake manifold along with the crossover pipe is sold as a unit.

Dorman 615-188 Upper Intake Manifold for Ford Truck : Amazon.com : Automotive


Maybe its possible to drill out, tap, and thread in a properly sized hose fitting if that is indeed what you are speaking about.

 

[GaExpedition]

Maybe this new pic will help a little. The crossover is leaking on the backside of the left side where it attaches to the plastic intake manifold. I circled the area in red. After a few lengthy phone calls I found out the part is called a water crossover. there is an o-ring at the connection on both sides and I had to order them. Part number ES71213 at advance auto. Now that I have that info I'm HOPING I don't have to remove the manifold to install them. Anyone ever taken this crossover off before and know that answer?

 

[Jay87LX]

It looks as if it sits right down on top of the intake manifold. I may add that being polastic and old be very careful how tight you crank your bolts- I would advise a torque wrench

 

[toms89]

Maybe this new pic will help a little. The crossover is leaking on the backside of the left side where it attaches to the plastic intake manifold. I circled the area in red. After a few lengthy phone calls I found out the part is called a water crossover. there is an o-ring at the connection on both sides and I had to order them. Part number ES71213 at advance auto. Now that I have that info I'm HOPING I don't have to remove the manifold to install them. Anyone ever taken this crossover off before and know that answer?

Just pulled down my original intake manifold from my garage attic storage to check.

There are 6 - 8mm bolts on the underside of the plastic manifold. 3 on either side. Posted some photos below.

 

[GaExpedition]

Those pics are PERFECT! They still wont be fun to get at, but at least now I can see what I'm up against. Hope to have the two seals before lunch tomorrow, and get to work on it.

 

[BIGRED03]

Just pulled down my original intake manifold from my garage attic storage to check.

There are 6 - 8mm bolts on the underside of the plastic manifold. 3 on either side. Posted some photos below.[/qu

Are these pictures of what you are talking about?

 

[GaExpedition]

Just pulled down my original intake manifold from my garage attic storage to check.

There are 6 - 8mm bolts on the underside of the plastic manifold. 3 on either side. Posted some photos below.[/qu

Are these pictures of what you are talking about?

Yes, the first pic that has the arrow pointing is the joint that's leaking on the backside.

 

[BakerEdition]

Tom, dont the make a aluminum replacement for those plastic intakes...I remember to police cars had a problem with the plastic cracking...one more thing..do you know or does anyone know did they use the same engine and parts in the police expy as the civilian models?

 

[GaExpedition]

Wow, this isnt going to be quick or easy as I had hoped. One bolt on each side holding the crossover on is unaccessable. Going to have to take everything off the top of the intake manifold and remove it to get the crossover off.

 

[BIGRED03]

Yes, the first pic that has the arrow pointing is the joint that's leaking on the backside.

I think it is called coolant crossover pipe. Uncle's Crown Vic was almost the same thing his pipe actually fractured. What a lousy place for a leak, no good place though just easier.

 

[GaExpedition]

Finally got the manifold out and the crossover pipe removed. Both sides had failed, but only the one side was leaking bad. Evidently someone who owned the expy before me had put some stop leak in the system before. You can see the traces of brown where it had been leaking for some time. Gonna take a lunch break for a little while then go get the parts for re-installation this afternoon. The job is going better than I expected at first. Would be a piece of cake if the motor didn't sit so far back.

 

[stamp11127]

We have a similar problem with a Crown Vic in the shop now. For the amount of work your going through I would replace the manifold. We tried the "quick fix" on the original manifold and ended up cracking the plastic at the gooseneck.

If you pull the manifold you'll need to replace all the manifold gaskets, not just the one that is leaking.

 

[toms89]

Finally got the manifold out and the crossover pipe removed. Both sides had failed, but only the one side was leaking bad. Evidently someone who owned the expy before me had put some stop leak in the system before. You can see the traces of brown where it had been leaking for some time. Gonna take a lunch break for a little while then go get the parts for re-installation this afternoon. The job is going better than I expected at first. Would be a piece of cake if the motor didn't sit so far back.

Yep... these are tons of fun working on with half the motor sitting under the cowl. Good for weight distribution but can be a PITA to work on.

 

[BIGRED03]

That looks bad

The inside of that pipe looks nasty. Can you imagine what the rest of the cooling system looks like? Time for some PM before she cooks off.
Are y'all saying that crossover is plastic?

 

[GaExpedition]

The inside of that pipe looks nasty. Can you imagine what the rest of the cooling system looks like? Time for some PM before she cooks off.
Are y'all saying that crossover is plastic?

The intake manifold is plastic, but my crossover pipe is aluminum. On my 1999 250 super-duty, with the same motor, the crossover and manifold is one aluminum piece.

 

[BIGRED03]

The intake manifold is plastic, but my crossover pipe is aluminum. On my 1999 250 super-duty, with the same motor, the crossover and manifold is one aluminum piece.

Do not know what your time frame is but there are a couple on Ebay for $99. if it helps another Georgian.

 

[GaExpedition]

Well, in my quest to see where the crossover pipe seals failed, I didn't notice what caused them to fail. Went back out to start cleaning parts and that's when I noticed the plastic lips were cracked on the manifold itself. (see attached pics). Just can't catch a break sometimes. Looks like a new manifold is in order.

 

[BIGRED03]

Well, in my quest to see where the crossover pipe seals failed, I didn't notice what caused them to fail. Went back out to start cleaning parts and that's when I noticed the plastic lips were cracked on the manifold itself. (see attached pics). Just can't catch a break sometimes. Looks like a new manifold is in order.

Almost looks like something hit it hard.

 

[stamp11127]

Nope, nothing needs to hit it. The plastic has a lifespan and is a poor idea.