Question about 1998 Ford F150 Regular Cab

2 Answers

Coolant leak on top of intake manifold

2002 F150 4.2
The small tube behind the thermostat housing is leaking around its base. Is this tube pressed into the manifold? Is it threaded? Would it be possible to braze the joint or use an epoxy sealant to fix this leak?

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  • tim_mckenric Feb 14, 2009

    Pipe was pressed in, hole size was minor diameter for 1/2" npt thread. Taped it to this size and used 1/2" brass pipe fittings and a 1/2" to 5/8" hose barb. Pressing that thin of a pipe was not a good idea for Ford. Sizing the hole to be taped was a good idea for an easy fix.

  • mgaudzels Feb 21, 2009

    I also have a leak near the base of the aluminum pipe fitted to the coolant intake. I've heard this is a common problem. I understand the tape you are using but what about these brass fittings? Could you please explain?
    Thanks,
    Mike


  • Bradley_No Feb 22, 2009

    I have a 2000 f150 4.2l v6, the coolant tube broke off of the intake manifold. Is this a factory part or do I have to replace the entire intake?

  • Anonymous May 12, 2009

    The tube on my '01 F-150 started leaking last year. I temporarily fixed it using Bars leak pellets. It just started leaking again yesterday, I have pipe taps and fittigs so hopefully this will cure my problem as well.

  • Anonymous Mar 29, 2014

    spark plug wiring holder behind intake manifold

  • Anonymous Mar 31, 2014

    its not the manifold

  • Anonymous Mar 31, 2014

    pcv valve hose leaking at manifold how to fix

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It is Threaded and you can Use Epoxy or even Gas Line Sealing Tape to seal the Pipe. Please Rate My Response! Thanks!

Posted on Feb 08, 2009

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I also had this problem and it is pressed in not treaded I tried JB weld and it didnt work I ended up replacing the intake but the intake I used to replace it with the pipe was on the front of the intake and only had 1 temp. sensors as the old one had 2 temp. sensors on the front of the intake.

Posted on Apr 25, 2011

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1 Answer

Code P0604 and P0444 came on in my wife's bmw 530i


P0444, Evaporative Emission System Purge Control Valve Circuit Open". I believe this (small) valve is located underneath the intake manifold behind the oil filter housing. Since there are other codes that indicate leaks in the evap system, you might have to replace the PCV, P0604 could be the coolant level, or a stuck thermostat, top up the coolant, or replace thermostat would be advisable.
hope tis helps

Sep 15, 2014 | BMW 530i Cars & Trucks

Tip

Intake Manifold gasket replacement and/or leaking= Ford


Intake Manifold gasket~

Replacing intake manifold gasket:
Replacing the intake manifold gasket, I used the tube kind, it's a make it youself for about $6 (it's blue and the consistancy of toothpaste) follow directions carefully! You can get a tube at Autozone or any car parts store. Has been working great. Just ask the cashier for the make it yourself kind of intake manifold gasket. Sorry, I don't remember the name of it, it's been that long...lol...

As for the Intake Manifold leaking coolant....It could, but shouldn't. One of the largest problems I've seen for coolant to leak out the Intake Manifold has been due to pressure in the system somewhere... Check the classic area:
Water pump- look for either water seapage and/or coolant. You'll know if it is because you will see real water either coming out of the water pump leak hole or under the thermostat. Most of the time coolant will pool where your heater hose runs in the intake manifold.

Mentioning heater hose. Check for leaks, holes, and/or cracked heater hoses. In-addition to the water pump, heater hoses...Check the transmission system, exhaust system, fuel system, radiator system, A/C system, secondary fan (located above the water pump housing), and thermostat.Also, check all electrical connections....Hummm....This is almost the entire workings of the vehicle.

NOTE: "It seems to be an infinity kinda thing... Once one thing starts to fail and is ignored, you are bound to be fixing a chain of event failures. Therefore, Do not ignore even the smallest problem or you'll be bound for life in repairs...."

on Jun 25, 2010 | Ford Expedition Cars & Trucks

1 Answer

Does the 4.6 V8 ford engine have a consistent problem with leaks at the housing base beneath the thermostat housing, and how do you get to the back two bolts that go from the bottom up?r


Intake has to come off 1996 thru 2001 & be replaced
with updated one

2002 on had other issues

The bolts on 2002 & newer, are as you said under the intake,
can't get to them

Suggest you google thermostat replacement & look
further, at all the info on the intake

The aluminum cross over is the new design

Lots to remove to get the intake off, but that is the fix

Learn about all the issues first & then do as needed

Aug 13, 2014 | Cars & Trucks

2 Answers

What is behind the Thermostat? The piece that it bolt to.. Have a leak. How far back does it go. How do I remove it?


The thermostat is in the housing where the upper radiator hose connects to the intake manifold.
Is the intake manifold what you are talking about ?

Mar 03, 2013 | 1993 Ford F150 SuperCab

1 Answer

2005 elantra not an idiot but cannot find the thermastat to replace it is it well hidden followed all the large hoses HELPchipt


Remove the radiator hose from the thermostat housing cover by removing the band clamp that holds the hose to the cover. This is done with a Phillips screwdriver. Slide the band clamp back away from the housing and pull the hose off.


  • 2 Remove the two bolts that hold the thermostat housing cover to the top of the Elantra intake manifold with an adjustable wrench. The bolts will be reused. They should not be discarded.


  • 3 Remove the old gasket that was pressed between the intake manifold and the thermostat housing cover. It's a paper gasket and should pull off of the intake in one piece. Remove the thermostat from inside of the intake manifold by pulling up on it. The gasket and thermostat can be discarded.

  • 4 Place the new thermostat into the intake manifold of the Hyundai Elantra. The thermostat must be placed with the top sticking out of the intake manifold for it to work properly. Use the old thermostat to orientate the new one.

  • 5 Place a small amount of PVC gasket sealer around the thermostat on the base of the intake manifold. Allow the PVC to dry for ten minutes and then place the thermostat gasket on top of the gasket sealer. Place a small amount of PVC gasket sealer on top of the paper gasket and allow to dry for ten minutes.

  • 6 Place the thermostat housing cover onto the gasket and bolt it into place with the original bolts. You should see a small amount of PVC gasket sealer squeeze out between the housing and the intake. This is normal and it should be left in place. Once it dries, it will add additional seal protection and prevent leaking.

  • 7 Place the radiator hose back on to the thermostat housing cover and fix it into place by tightening the band clamp with a screw driver. Your Hyundai Elantra is now ready to drive again.

  • In case of a problem or clarification or my solution was insufficient, don't hesitate to post me a reply.

    If you are satisfied, rate my solution with the "thumbs" or (even better) add a testimonial.

    May 30, 2011 | Hyundai Elantra Cars & Trucks

    2 Answers

    How do i replace the thermostat


    Follow this steps on how you can replace the thermostat. First,Remove the radiator hose from the thermostat housing cover by removing the bandclamp that holds the hose to the cover. This is done with a Phillipsscrewdriver. Slide the band clamp back away from the housing and pull the hoseoff. Remove the two bolts that hold the thermostat housing cover to the top ofthe Elantra intake manifold with an adjustable wrench. The bolts will bereused. They should not be discarded. Remove the old gasket that was pressed between the intake manifoldand the thermostat housing cover. It's a paper gasket and should pull off ofthe intake in one piece. Remove the thermostat from inside of the intakemanifold by pulling up on it. The gasket and thermostat can be discarded. Placethe new thermostat into the intake manifold of the Hyundai Elantra. Thethermostat must be placed with the top sticking out of the intake manifold forit to work properly. Use the old thermostat to orientate the new one. Place a small amount of PVC gasket sealer around the thermostat onthe base of the intake manifold. Allow the PVC to dry for ten minutes and thenplace the thermostat gasket on top of the gasket sealer. Place a small amountof PVC gasket sealer on top of the paper gasket and allow to dry for tenminutes. Place the thermostat housing cover onto the gasket and bolt it intoplace with the original bolts. You should see a small amount of PVC gasketsealer squeeze out between the housing and the intake. This is normal and itshould be left in place. Once it dries, it will add additional seal protectionand prevent leaking. Place the radiator hose back on to the thermostat housing cover andfix it into place by tightening the band clamp with a screw driver. YourHyundai Elantra is now ready to drive again. Hope this info help you.

    Jan 25, 2011 | 2005 Hyundai Elantra

    2 Answers

    I have a 98 lincoln town car executive and I need to know how you change the thermostat


    1. drain coolant
    2. remove engine cover
    3. remove the 2 bolts from water hose connection (upper rad hose connecting to)
    4. remove o-ring and thermostat
    5. repeat in reverse order

    Feb 05, 2010 | 1998 Lincoln Continental

    1 Answer

    Intake manifold sealant repair now leaking maybe oil? coolant b4


    You need to remove the thermostat housing again. Then you will have to extract the bolts you broke off. You will need to drill and tap them so you can use an easy out to remove the broken bolts from the threads. Then you can clean up both mating surfaces and replace the gasket and the thermostat. Check to make sure you did not crack the thermostat housing or you may have another leak when finished. They are usually aluminum and break easily if too much pressure is applied or they are corroded and weak.

    Feb 25, 2009 | 1999 Ford Taurus

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    1998 mustang gt coolant leak


    I just had the same problem. Ford design the intake manifold with plastic water crossover which cracks. The coolant will leak onto the top of the block and and then down the back of the engine. This intake design is a known defect and was ocvered under by Ford for 7 years past the date of mfg. The crack either is in the crossover or the thermostat housing. I happed on this when I found the same leak and traced it back to the thermostat housing. I changed the thermostat, but it leaked worse. You can pickup a aftermarket for $200 and it's about 4-6 hr job to replace.

    Oct 18, 2008 | 1998 Ford Mustang

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