Question about 1998 Ford Explorer

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Plan to replace left head gasket on a 1998 4.0 litre SOHC engine. Any advice/guidance

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Yes, the head gasket in NOT the cause, but rather the victim. Head must be flycut or milled, or you will have failure again, pretty fast.

Posted on Aug 21, 2010

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1 Answer

2002 Subaru outback is leaking antifreeze and not heating up.


This is common issue early sign head gaskets failure for EJ251 SOHC engine for external coolant leak. Second gen 96-99 with EJ25D is worst because when head gaskets failed, it's an internal leak that allows coolant and oil mix together in the combustion chamber to destroy engine.
You can drive it for at least 6 months or more as long as you keep top up coolant since the leak should be small at a slower rate leak. I drove mine for a while before change head gaskets. You're looking at `$1000-1200 job a dealership since you might as well change the timing belt, water pump, idlers while engine is pulled to replace head gaskets.

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Water pump failed. Car overheated. Engine lost power. Car smoke out from back of engine and from rear of car. I replaced water pump. Car still smokes when I drive it. Still has no power.


Notorious for intake leaks, the composite plastic intakes crack and leak coolant-as to the lack of power, you mght have overheated it and done some damage to the engine. There was a recall (information below) for the 4.6 for the intake-the overheating and lack of power means you should at least have compression checked and go from there-you may have bad head gaskets or worse. Do a compression test before you do anything else.

Ford Motor Company will extend the recall (01M02) on 4.6L V8 equipped vehicles with plastic intake manifolds. Some of the composite intake manifolds used on 4.6L SOHC engines may develop fatigue cracks at the coolant crossover duct. This condition could result in engine coolant leakage which, if not serviced, may cause engine overheating. Complete loss of coolant may result in engine damage or engine failure.
The updated recall now includes:
• Certain 1996 through 2001 Model Year Crown Victoria Police Interceptor
• Certain 1998 through 2001 Model Year Crown Victoria with Taxi
• Certain 1998 through 2001 Lincoln Town Car Limousine and Livery Prep Package
• Certain 1996-2001 Crown Victoria Taxis, Police cars and Lincoln Town Car Limousine and Livery cars.
• Certain 1996 through 1997 Crown Victoria Police Interceptor Vehicles with 4.6L SOHC engines built at the St. Thomas Assembly Plant from the beginning of production for the 1996 Model Year through January 28, 1997.
• Certain 1998 through 2001 Crown Victoria Police Interceptor Vehicles with 4.6L SOHC engines built at the St. Thomas Assembly Plant from November 22, 1997 through December 15, 2000.
• Certain 1998 through 2001 Crown Victoria Taxi Vehicles with 4.6L SOHC engines built at the St. Thomas Assembly Plant from November 22, 1997 through December 15, 2000.
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1 Answer

Just replaced the thermastat but its still overheating and bubbling over? any ideas?


I'm assuming it's a 2.7 litre engine and if it's bubbling into the overflow tank u have a bad head gasket take it to a shop an have them do a compression test on the engine that will tell ya if the gaskets are bad hope this helps ya out good luck and not to sound mean but the 2.7 motors are junk just ask any other mechanic and they will tell ya it's a common motor to go bad with head problems my advice would be to start lookin for another car just in case

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Buick Park Avenue 1998 head gasket repair the mechcanic said it has blown head gasket and the engine must be removed to repair is this true


The engine does not need to be removed to replace the head gasket on your engine. More than likely it is an intake gasket that failed and showing the typical symptoms of a blown head gasket. If the intake gasket repair is put off long enough, it can turn into a blown head gasket and I've only had about a 50% success rate replacing the head gasket. They usually work fine for a few months, but the oil and water mix causes the oil to lose it's lubricating properties and even after fixing the cause of the problem, the damage may already be done to the engine bearings and the engine may knock later on down the road. You may want to get a quote on a used replacement engine if you plan on keeping the vehicle for a while and compare to the price of fixing it. In the long run, it will probably be a better solution.

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97 explorer - sohc engine how can i tell if the


the dots line up at top dead center(point to each other) and you wound have a harmonic balancer.

Dec 06, 2009 | 1998 Ford Explorer

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98 ford explorer oil pressure sensor location


2.9L and 4.0L engines-Left side front of the engine, below the cylinder head in the engine block

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Nov 28, 2009 | 1998 Ford Explorer

2 Answers

Head gascket 3 litre


Good day
It sounds like the head gasket is gone. Check around the head to see if you can see any coolant.
If you can remove the head your self replacing the gasket, it's would be good to take the head into a engine rebuilt shop and have them check for wrapage, and the vales.
I would do a compression test to see what you get, if the compression is low then a very good chance that the head gasket is gone,you said that it's over heating that is a sign also, Please let me know how you hake out I hope this helps

Cheers

Sep 18, 2008 | 1995 Toyota 4Runner

1 Answer

What is the 98 isuzu rodeo head bolt torque


joyce, there are different specs for sohc and dohc engines. my advice is to get a Haynes manual from the auto parts store.

doug

Aug 30, 2008 | 1998 Isuzu Rodeo

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