Question about 1999 Volvo S80

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Oil leak oil is coming from area just under intake manifold, tube/box or something looks plastic, i replaced fuel line and maybe hit it. what is it? and how do i change it? 1999 s80 t6

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Pull intake off its easy and replace pcv box and hose (dealer will know what parts you need/they have the bulliten)

Posted on Aug 26, 2008

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?what does '97 Ford T.Bird 4.6 dohc V8 engine manifold looks like?


That sounds like a vacuum leak. Check all vacuum lines. If it's a plastic intake, the fittings sometimes come loose or the bolts come loose and some even crack. a411465a-d08f-4079-a8ce-4e35db1c4995.jpg 3d76ea72-45b3-4ddf-92a7-3ce6abf36a9d.jpg 60749eaa-428f-4970-8c9b-eb5cf40089b3.jpgAGCO Automotive repair service page will explain a little and has some detailed pics.

Jun 09, 2014 | 1997 Ford Thunderbird LX

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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

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1999 Alero : Fuel leaking at a fitting where fuel line goes under intake manifold. Does manifold have to be removed to remove or tighten this fitting?


IF FUEL LINE FITTING LEAKING UNDER INTAKE YOU HAVE TO REMOVE TOP INTAKE MANIFOLD TO REPLACE FUEL LINE FITTING O RING.

Sep 15, 2011 | 1999 Oldsmobile Alero

2 Answers

Hi, my 2002 malibu hesitate and whistle when I accelerate. It only works fine under 20mph, but when it exceed, it whistles and hesitate on accelerating. On highway, it barely goes up to 60mph and when...


Whistle noise indicates a major vacuum leak. Maybe something loose in the intake system. Maybe a vacuum hose disconnected. Will explain lose of power also.

Jun 24, 2011 | 2002 Chevrolet Malibu

2 Answers

My husband has a 2004 Chrysler Intrepid. On June 21, 2011 the engine light came on and we took it took it to the garage . The mechanic replaced the intake gasket for a vaccum leak , well since then it...


Take it back and he will fix it, maybe a o-ring where the fuel line connects to the fuel rail or if he removed the injectors, then a o-ring maybe pinched, loose fuel line fitting. something minor, but dangerous, can catch fire real easy, I would have it towed to be safe.

Jun 24, 2011 | 2004 Dodge Intrepid

1 Answer

Grand Marquis LS 2004 smoking under hood on drivers side what is possibility of being gasket? no broken hoses ..not short on oil. no leaks..no radiator or heater problems. ..brand new thermostat installed...


This model uses a composite (some would say plastic) intake manifold, which has been known to develop cracks in the area of the thermostat housing. In addition, the water pump has a pipe to the back of it that emerges in the rear of the intake manifold. Both of these areas peculiar to this motor are known to leak coolant. In its history, many of these plastic manifolds had to be replaced, and there were even techinical bulletins from Ford on them. If you have leak in the tube or pipe that goes under the intake manifold to the back of the water pump, then you will likely want the dealer to fix it, as you may need a new water pump.
Two things then to watch: 1) coolant level and color and 2) any signs of leakage behind the main serpentine belt in the area of the water pump.
Since the serpentine belt is large on the 4.6L motor, and due to its rotation, it is possible that you only have a bad water pump and that the liquid is being thrown by the rotation of the motor. The water pump is not a difficult repair, as it comes off with only a few cap screws. However, if it is detached from the rear inlet pipe (as I mentioned above), it would require that the manifold be removed for it to be reattached. This is not a difficult job, but is very time consuming.

Nov 28, 2010 | 1989 Mercury Grand Marquis

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#3 CYLINDER IS FULL OF FEUL AND TRUCK WILL NOT START.REMOVED SPARK PLUGS AND GAS POURS ON GROUND WHEN KEY IS TURNED ON FROM #3 CYLINDER PLUG HOLE.


The Vortec engines were notorious for those kind of problems. The problem will be under the upper-intake manifold, and the fuel injector assembly will either have a cracked plastic fuel line running out to one or more of the fuel injectors, or the fuel pressure regulator that is located on the end of the fuel injector assembly is faulty or it has detached from the fuel injector assembly. Either way the lower intake manifold will be flooded with fuel anytime that the fuel pump runs.

There were two types made, the first type had fuel lines that connected to the lower intake manifold, and then from the metal fittings the fuel line turns into plastic and runs inside the lower intake manifold and under the upper-intake manifold where it runs over to the fuel injector assembly, and this type can really flood out an engine when it becomes faulty.

The second type had metal fuel lines running over the upper intake manifold and they connected to the top of the fuel injector assembly, however, under the upper-intake manifold there are still plastic lines to the fuel injectors and also the fuel pressure regulator that could be faulty and cause the engine to severely flood.

The upper-intake manifold is not that difficult to remove, and after you remove the upper-intake manifold then (replace the fuel lines to the fuel injector assembly if it is the second type) turn the ignition to the "Run" position and when the fuel pump runs you should see where the fuel is leaking/spraying from, and it will most likely be a large high pressure leak from a ruptured plastic fuel line.

Let me know if you require any further assistance.

Jul 20, 2010 | 1994 Chevrolet S-10 Blazer

2 Answers

Coolant leak at intake 1994 Buick LeSabre 3.8 ltr


There are several areas of possible leakage. One is the hose and plastic outlet from the intake manifold on the passenger side of the engine. The hose runs low, underneath the alternator. The plastic outlet cracks, the hose gets old, the clamps on the hose can also be loose. The replacement outlet from the dealer is steel, not plastic.
Another possibility for leakage is on the driver's side of the intake manifold. Underneath the air inlet is a metal cover on the end of the intake manifold. This covers the coolant passages at the end of the intake. Mine was oozing antifreeze..you don't have to pull the intake to replace this.
The other place for leaks is the intake itself..requiring removal of the intake. I've done this...I don't think it is that bad of a job. However, if you put in a new intake, don't forget to put in a pcv valve..it fits under a small cover at the right rear of the intake manifold.

Nov 21, 2009 | 1994 Buick LeSabre

1 Answer

If it is not necessary to replace the coolant tube in the intake manifold if it is leaking antifreeze, how do you fix the leak even if you do flush out the system and put green antifreeze in? I am also...


I'm assuming you are talking about the 3800 v6 engine?
I don't know what hose or tube you are talking about either. There is not any coolant going through a hose in the intake manifold. There are two bypass coolant elbos on the passenger side of the engine going into the intake and timing cover from the intake and the heater core. Is this what you are talking about.
And NO green coolant in a 97 Dexcool only!

Oct 23, 2009 | 1997 Pontiac Grand Prix

1 Answer

My intake gasket is leaking how do i replace it? 94 toyota camry


It would probably be very beneficial for you to purchase a Haynes Repair Manual that will walk you through step by step for just about every repair mechanical and otherwise that you would need to undertake now and in the future. Toyota makes a very durable machine but eventually things wear down. I know the manuals can be purchased at most of your auto part store chains such as Auto Zone, Discount Auto Parts, Pep Boys or something similar. Tou will find a range of years included in several books for your specific year, make and model.Cost is around $20.00 They have torque specs and all other specs you will need. Another manual that is good but I don't see much of anymore is Chiltons. You can also look at a book store if that is closer to where you live but I'm not sure. Also could look on ebay possibly.
Just to mention this. I don't think that your oil would be leaking from the intake manifold gasket. The intake manifold distributes the air/fuel mixture from a throttle body which is like a carb only it uses a single fuel injector to control the fuel. Or, it would be a plenum that only handles the air distribution to the cylinders, with an injector for the fuel delivery located by each cylinder. Fuel and air or air under a vacuum environment An intake manifold leak is usually accompanied by erratic engine idle speeds that constantly change or are too high or too low. I would check the valve cover gasket, a clogged pcv valve, or another small component fastened in the area of the leak. Oil leaks can sometimes be difficult to track.
Hope this helps,
Matt.

Nov 23, 2008 | 1994 Toyota Camry

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