Ford Lincoln Mercury 4.6L Intake Manifold Relacement Part 2

[slednck3]

it look like it is a pain in the ass to give ur car a tune up

[meecherick]

Does the new intake have a connection for the heater pipe that you removed from the rear passenger side of the manifold?

[APDTY]

@meecherick Yes the intake still has the water outlet for the heater hose.

[RyanLorenzo454]

can you take the intake manifold off without removing the bracket on back drver side of engine it is very difficut to get my hand in

[James1toknow]

I have a 2001 with 120,000 and still doing good. Cross fingers but with a look at what you did I should be fine,, I rebuilt my sons 92 Chevy 350 engine this past summer. Thanks !

[James1toknow]

I have a kid telling me he runs 93 Oct gas and gets 38 miles hwy and 28 city with a 98 Grand Marquis 4.6 2 valve, I couldn't help but laugh. I have a 2001 and never received this kind of millage and I owned mine from day one. Now I know the 4.6 calls for you to run 87 Oct only in this car, can you verify this clam this guy has made?

[Sidewinder9877]

Cont: If your old O-rings have tears in them, they might not leak fuel but you will have a vac leak that can and will trigger a MIL light thus failing emissions tests. Not to mention a car that runs like crap. You'll be ripping your hair out trying to track down the leak. Also it is a good idea to install new O-rings on the fuel lines too. As I said, they are cheap insurance against a host of problems.

[Sidewinder9877]

A good tip that was missed is injector O-rings are cheap. Like on the order of about 10 bucks for a set. Put new ones on. It can save you a headache and possibly a fire later on. While you can reuse the old ones, buying new is not that much and is a guarantee against leakage as long as the injectors are properly lubed during install. Never cheap out on O-rings.

[7DirtyPawz9]

i just installed a new dorman intake into my 97 towncar. i followed your video instructions to a "T". triple checked every wire connection, vacuum line and bolt. when i turned the key, the car fired right up but the motor smoked like hell and was knocking like a steam engine. any suggestions?

[APDTY]

@7DirtyPawz9 Did you drain the coolant system before beginning? My guess is that when the intake was removed,, coolant may have run down into the intake runners on the cylinder head. as long as it was not a huge quantity of coolant, you should be fine, the smoke should clear up. You may want to remove the spark plugs and crank the motor for a minute with the spark plugs out to try to push out the coolant.

[7DirtyPawz9]

@APDTY I drained some of the coolant so i didn't make a huge mess in the driveway. the smoke cleared up but the motor still knocks. it's quieter than when i first started the car but the knock is still there. i'll try turning the motor over with the plugs out. your videos are a great help and thanks for your time.i'll let you know what happens.

[Sidewinder9877]

@7DirtyPawz9 Always do an oil change after work like this. No matter how careful you are, you would be surprised at how much coolant can find its way into your oil system. I hope you didnt run it long because coolant in the oil system will wash all lubrication from critical parts and ruin your engine.

[LYO1106]

bad ass video bro im ganna fix my pony this weekend

[X2N18]

what brand of torque wrench do u use ?

[APDTY]

@X2N18 To be honest, I don't remember what brand it is. I do know it's not a premium brand, but it gets the job done.

[X2N18]

@APDTY hehe thanks for telling me, i ask because i want to get a good torque wrench for me but not expensive one maybe around 50 dollars or 60 but one that i can count on and torque it nice and good :)

im cleaning my intake manifold so on on my s10 blazer had high idle around 2000 RPM, i check the intake and had this small milky brownish color oil mixed with coolant, the others looks fine so i assume i did right by taking the intake manifold off to install new gaskets hope this fix the idle.

[Channellock12]

Will a cracked intake cause the #8 plug to fill up with coolant? Will it also cause the engine to not idle? How does the coolant get into the plug hole if the plug boot seals the hole when it is installed?

[APDTY]

@Channellock12 The original intake often leaks around the heater hose outlet, and when that happens, it's very common for the number 8 plug hole to fill with coolant. The boot never makes a perfect seal, and if enough coolant leaks onto it consistently, it will eventually fill up the spark plug tube

[MrChaosmar]

Awesome video for sure. Working on a Grand Marquis right now, got it down to the fuel rail, got to finish it in the morning. Thanks for the tips

[jr122309]

Video helped out a lot and saved me a lot of money doing it myself. apdty good work, great video.

[mattcat234]

The bracket that you install at the 7:00 mark

The top bolt that holds that down, does that bolt also bolt the whole intake manifold to the engine as well? That bracket is missing of my engine.

Please get back to me, thanks!

[APDTY]

@mattcat234 That bracket barely has any use at all, it's main function is to hold the throttle cables in place. If the bracket is missing on your engine, consider it a blessing, as it saves you a nasty headache, haha.

[mattcat234]

@APDTY Great thanks!

[mattcat234]

@APDTY Well mine is missing hah,

my concern is that I'm told the bolt that goes down through the top of the crash bracket is also a bolt that threads to the head and needs to be there. Is this true?

[APDTY]

@mattcat234 Yes, one of the intake manifold mounting bolts goes through that braket, it's a very long one. But, I would imagine that whoever removed the bracket, probably found a shorter bolt to install in that hole? you can see the long bolt at exactly 7:55 (briefly and sped up though, LOL). If there is no bolt in that intake mounting hole on your intake, you should try to find a bolt that matches one of the other intake mounting bolts and put it in there.

[imjustpassinthru]

I have a mysterious coolant loss on my '97 4.6 liter with 121k miles. It already has the upgraded manifold. I'm certain there are no external leaks. There was brown sludge accumulating in the overflow even after flushing and refilling with distilled water. I replaced the radiator thinking it was a leaking transmission cooler causing the sludge. The new radiator ( I put in new a/freeze) seems to have cured the sludge, but it's still losing coolant. I think it's time to check the spark plugs.

[APDTY]

@negfrais Wow, I have never heard of an intake coming with the crossover detached, I don't have any information on how to deal with that one, all the intakes we sell include the crossover already attached.

[gtfiveliter]

Thanks! Changed the spark plugs, and there was a lot of coolant in the spark plug well. Got most of it out. How much coolant would it take for the car to hydrolock? The new intake, and plugs are all installed, and the car won't crank. The battery is low, waiting for it to charge and find out.

[APDTY]

@gtfiveliter The motor will hydrolock when the cylinder has more liquid than the size of the combustion chamber (in the cylinder head, where the air/fuel mixture gets compressed). The 4.6 has about a 50cc cylinder head, which equates to 50ml of of liquid, which is about 1.7 oz of liquid. So If you have less than 1 oz of liquid in the cylinder, it "should" be able to turn over still.

[gtfiveliter]

Thanks! Changed the spark plugs, and there was a lot of coolant in the spark plug well. Got most of it out. How much coolant would it take for the car to hydrolock? The new intake, and plugs are all installed, and the car won't crank. The battery is low, waiting for it to charge and find out.

[gtfiveliter]

I changed the spark plugs with the exact O.E. ones about 5 years ago, when the car was at 160,000 kms. They're supposed to last up to 100,000 miles. Wouldn't hurt to change them though, right?

You video was great, and EXACTLY what I was hoping to find. Thank you so much!

[APDTY]

@gtfiveliter yeah it's never a bad idea to throw new plugs in while you are there, it may not be required, but it's one of those "While we are in there" things. :)

[gtfiveliter]

Since the coolant leaks into a couple of the spark plug wells, my car is misfiring like crazy, and is gutless of course. That was the first indication of my cracked intake manifold. It's getting replaced today.

Question: Would it be a good idea, to check and replace the spark plugs, since it's easy to get to them, with the intake and everything else removed? I'm wondering, if coolant has leaked around the spark plug, and all that misfiring might have damaged the plugs?

[marshall2u]

I'm getting ready to tackle this job myself. What a great video. You didn't skip steps, like so many video's do. I, by far, prefer to watch a video than read from a manual for instruction. Thank you for this!

[0sparq0]

@APDTY Thanks so much for taking the time to make this video! I do however have 2 quick questions: How did you prep/clean the mounting points before you installed the new manifold? Secondly - I've been stuck for about 3 hours trying to get that second bolt out of the bracket that sits on top of the fuel rails - any further advice on how to get in that tiny space?

[APDTY]

@0sparq0 For the surface prep, I just used a high-speed gasket cleaning prep tool. (The actual tool I have is a Matco MT1644K you can google it if you want to see what it looks like, I also use it in our Timing Chain cover video). As far as the bracket,, unfortunately I have no easy way to explain how to remove that, other than pain, frustration, and a few swear words thrown in for good measure.

[0sparq0]

@APDTY Thanks for the info! I ended up using just a little degreaser fluid, a razor blade and a whole lot of paper towels! :)

The bracket eventually came off pretty much the same way you described above..unfortunately the screw thread was a bit stripped..adding to the frustration.

Final question - Isn't the bolt that goes through the top of bracket part of the bolts that go into manifold? Weren't you supposed to add bracket before torquing to specs? Thanks again!

[bseballfrk35]

There were two component kits that came with the manifold correct? One had the alternator brackets among other pieces, and the second had a plastic piece with spacers and nuts and screws? Where did you use this plastic piece?

[APDTY]

@bseballfrk35 What part number kit do you have? Also what year and model car do you have? I am not offhand familiar with the plastic piece you are talking about but would like to look into it for you. Thanks

[APDTY]

@RippedUps Yes, the manifold comes with the two alternator brackets

[bseballfrk35]

Hi there, i have an inquiry about the manifold itself. Do you know what the three tabs on the back of the manifold are used for. Are they some type of wiring harness or what?

[APDTY]

@bseballfrk35 the three little tabs on the back, each one has a little hole? You are correct in that their sole purpose is to hold wiring harnesses.

[APDTY]

@bseballfrk35 Yes, those tabs are to hold the "christmas tree" wire holders in place.

[josiegirl345]

CAN I JUST PAY YOU TO FIX MINE...

[APDTY]

@josiegirl345 Sure, why not :)

[mustang408N]

man thank u i just finish installing a new manifold on my mustang

[lostboykev]

I've got a 04 Grand marquis, is the original (ALL PLASTIC) intake the same for this car? My friend was curious about it. Also Do you think it's alright for me to use this video as a step by step for a grand marquis? I mean if I were to every have an issue with the intake?

[mustang408N]

i have to replace my intake not cus is crack because the lil nipple in back of the intake i guess broke

[APDTY]

@mustang408N Yes,, that is also a common problem on these, that heater hose outles on the passenger back side of the intake.

[IMPOSA1]

thanks I have the same problem but not if the part is broken or a gasket

[IMPOSA1]

is the same for a 4.6 mustang motor

[APDTY]

@IMPOSA1 Yes it is pretty much identical with maybe a few minor differences, this video should get you through it though.

[TheSleepermgm]

@IMPOSA1 yes the grand marquis , crown vic , town car and the mustang gt all have the same 4.6l 2 valve 281 cid sohc engine,,,,,,,

[Screammy89]

i went to the website. i drive a 95 but the intakes were for 96 and up :(

[MrStardust1980]

Thank you for this video. It has saved me alot of money and didnt take that long to do. Thanks for taking the time to do this.

[rj00130]

Thank you for the video it was very helpful.Both videos

[brole318]

what ifvi put gaskets on and didnt know that it was one made into it.should i leave it or just do it over,and will my new intake be messed up from my blunder?

[BlaineBugaski]

@brole318 Only the aftermarket DORMAN intake manifolds have the built in gaskets. OEM intake manifolds from Ford use the gasket (plastic with rubber) inbetween the heads and the intake manifold itself. These do not have built-in gaskets in the intake manifold. You'd be having serious problems with two gaskets if that is what you did in fact do, so you probably have an OEM intake manifold.

[pwjm]

I installed this same manifold on my car but it was leaking coolant and the intake charge after it warmed up. If it was cold it ran just fine, but once it warmed up a bit it would leak air and coolant.

I'm re-installing it using RTV around the o-rings to see if that helps. Is there many cases of the -rings being faulty or the manifold warped?

[APDTY]

@pwjm The O-Rings being faulty is possible but very unlikely. When installing the manifold, if the torque sequence was not followed exactly, it can warp the intake manifold which could explain your symptoms. You also may want to double check that the bolts are all torques sufficiently.

[pwjm]

@APDTY Thanks for the reply! I followed the torque sequence very closely and prepped the surface well. All bolts are torqued to the specified 18 ft/lbs. I've installed it twice now and I'm getting the same problem. I'm starting to wonder if the manifold is faulty.

[APDTY]

@pwjm Have you been able to track down exactly where the vacuum leak is? You can use a spray such as throttle body cleaner, and spray all around the intake manifold while the engine is running, when you hit the leaking area with the spray, the engine will suddenly run different while spraying that spot.

[YourePrettyGoood]

@APDTY nice video, I have that same exact manifold. Do you have any videos going deeper into the engine? I want to replace my lifters but dont know all the steps I need to take to get there. This car is similar to mine under the hood except for the distributorless ignition. Very helpful video, thanks

[APDTY]

@YourePrettyGoood Thanks for the comments. The lifters on the 4.6L Ford are actually underneath the valve covers, the intake does not need to come off to replace them. The valve cover comes off and the rockers can be removed from below the camshaft, you may need to compress the valve spring to get the rocker out, once the rocker is out, the lifters can be pulled out.

[YourePrettyGoood]

@APDTY awesome! I think I will go ahead and dig inside as soon as a get a chance. My valve cover gaskets(I think) are leaking and I have some bad lifters. That works out perfect, 2 birds with 1 stone. Thanks for the info, I owe you one.

[jayhead4]

This video was extremely helpful however since Ive replaced the intake manifold the coolant light is still coming on and the car is idling rough and back firing all these problems didnt occur until 2days after I ran the car for the first time is there anything I may have done wrong please help!!

[APDTY]

@jayhead4 If your check engine light is on, you will need to get the codes pulled, that will be where to start as far as diagnosing the problem, there can be so many different things that caust the symptoms you describe it will be impossible to list them all here. Good luck!

[imnxdc]

Nice technique of fast forwarding through tedious parts. That way we see it but doesn't take forever to see it.

[whitephantom3000]

Hi..I found something that I initially thought was a leaking injector but when I checked with a rag it didnt smelled like gas I think its coolant coming from the injector #2 would you say its the intake manifold gasket? Thanks in advance!

[APDTY]

@whitephantom3000 It could be, if it's coolant, the coolant would be running back or forward from wherever the leak is, there are no coolant passages near the injector itself, so it is likely running towards the injector from somewhere else. To be certain, you would need to have a shop do a coolant system pressure test on the car. Thanks. 

[imjustpassinthru]

Not knowing much about these modern engines, I was expecting to see the valve lifters after the intake manifold was removed? How do you get to and replace the valve lifters on these 4.6 liter ford engines? I have a '97 model 4.6 liter that I suspect has a stuck lifter. Any advice would be appreciated.

[APDTY]

@imjustpassinthru These motors are overhead cam engines, which means the entire valvetrain is located on top of the cylinder head, the lifters, the rockers, and the camshaft, To replace a stuck lifter on your car, you must remove the valve cover, the timing chain cover, the timing chain, the camshaft on the head that you are working on, and then you can access the lifters. Thanks!

[iamherenotheretobe]

Mine was slightly different (p71 package 2003 model) and had some sort of foam padding around the bottom of the intake, had to watch this to see if it actually needed it because I didn't reuse it (it fell apart anyway) I pulled aside the throttle body, pulled aside the alternator, pulled aside the fuel rails (without taking the line off) and it was just as easy for first timing it. I like these build in gaskets, the stock upgraded intake they blew out around the coolant passages.

[blackout000013]

my 01 crown vic has a bad rad leak gets a puddle under the intake manifold and on the floor after watching this vid im positive i can revive her thanks for this vid it just made my day...also fun fact we have the exact same motor config got to love ford for using the exact same motor for all there full size cars

[Theriomalstrom]

So it looks like I'll have to pull the fuel rails/injectors to change my spark plugs? That sucks!

[APDTY]

@Theriomalstrom Actually you can replace the spark plugs without pulling the fuel rail, Ford engineers were nice enough to leave just enough clearence to remove the coils without actually taking out the fuel rail. Once you loosen the 7mm bolts holding the coil packs in place, there is just enough clearence to pull the coil back slightly and then straight up.

[bdub24j]

What type of symptoms does a car experience, performance wise, from a leaking intake manifold?

[APDTY]

@bdub24j Usually the main symptom of a leaking intake manifold is a coolant leak, now if that coolant leak is near one of the spark plugs, coolant can work its way down to the spark plug and cause a misfire. Otherwise performance issues are not usually associated with an intake manifold leaking coolant.

[bdub24j]

@APDTY Thx for the info. I have a leaking manifold and as you mentioned, it doesn't really seem to be a problem performance wise (no misfiring), but lately the car (when cold) has hesitated/semi stalled when I go to accelerate from pausing at a stop sign/light, and I was curious if this could be a contributing factor. Not something I want to have happen when going across traffic. Thx again for the reply and hope you keep up with the vids for those wanting to learn.

[iamherenotheretobe]

@APDTY yup which is exactly what happened to mine on #7, I replaced that coil anyway it was flooded. I'll probably work around to getting em all replaced as well. (ebay rocks 15 bucks a pop brand new BW branded ones)

[Josh0630]

Excellent vid man keep um comming how bout a tranny rebuild for next time.

[josejg007]

NICE VIDEO



[MrMmok]

Great Vid! Thanks.

[mrexecutive1]

Great Job, Thank you.