Ford

Have Ford Questions? Ask a Mechanic for Answers ASAP

Ask an Expert,
Get an Answer ASAP!

Ford

how do i replace a head gasket on a 93 ford taurus

Customer Question
i cant afford to get...
i cant afford to get it fixed so i am going to do it my self i would just like some steps of getting it done. it is a 93 ford taurus 3.8
Submitted: 10 years ago.Category: Ford
Show More
Show Less
Ask Your Own Ford Question
Answered in 17 minutes by:
3/9/2007
Ford Mechanic: Bob, Auto Technician replied 10 years ago
Bob
Bob, Auto Technician
Category: Ford
Satisfied Customers: 4,087
Experience: 40 plus years general experience. ASE Certified Master Tech. (Expired, Retired)
Verified

3.8L Engine

See Figures 13 and 14

  1. Drain the cooling system, then disconnect the negative battery cable.

  2. Properly relieve the fuel system pressure.

  3. Remove the air cleaner assembly including air intake duct and heat tube.

  4. Loosen the accessory drive belt idler, then remove the drive belt.

  5. If the left cylinder head is being removed, perform the following:

    1. Remove the oil filler cap.

    2. Remove the power steering pump. Leave the hoses connected and place the pump/bracket assembly aside in a position to prevent the fluid from leaking out.

    3. If equipped with air conditioning, remove mounting bracket attaching bolts. Leaving the hoses connected, position the compressor aside.

    4. Remove the alternator and bracket.

  6. If the right cylinder head is being removed, perform the following:

    1. Disconnect the thermactor air control valve or bypass valve hose assembly at the air pump.

    2. If equipped, disconnect the thermactor tube support bracket from the rear of cylinder head.

    3. Remove accessory drive idler.

    4. Remove the thermactor pump pulley and thermactor pump.

    5. Remove the PCV valve.

  7. Remove the upper intake manifold. For details, please refer to the procedure located earlier in this section.

  8. Remove the valve/rocker arm cover retaining bolts, then remove the covers.

  9. Remove the injector fuel rail assembly.

  10. Remove the lower intake manifold and the exhaust manifold(s). For details, please refer to the procedure located earlier in this section.

  11. Loosen the rocker arm fulcrum attaching bolts enough to allow rocker arm to be lifted off the pushrod and rotate to one side. Remove the pushrods. Identify and label the position of each pushrod. Pushrods should be installed in their original position during assembly.

You must use new cylinder head retaining bolts and gaskets when replacing or reinstalling the cylinder head!

  1. Remove the cylinder head attaching bolts and discard. Do NOT reuse the old bolts.

  2. Remove the cylinder head(s). Remove and discard old cylinder head gasket(s).

To install:

  1. Lightly oil all bolt threads before installation.

  2. Clean cylinder head, intake manifold, valve rocker arm cover and cylinder head gasket contact surfaces. If cylinder head was removed for a cylinder head gasket replacement, check flatness of cylinder head and block gasket surfaces.

  3. Position the new head gasket(s) onto cylinder block using dowels for alignment. Position cylinder head(s) onto block.

Click image to see an enlarged view
Fig. 13: When replacing or reinstalling the head, ALWAYS use new gasket(s) and bolts to avoid possible coolant and/or compression leaks which could result in engine damage

 

  1. Apply a thin coating of pipe sealant with Teflon® to the threads of the short cylinder head bolts, nearest to the exhaust manifold. Do not apply sealant to the long bolts. Install the cylinder head bolts.

Always use new cylinder head bolts to ensure a leak-tight assembly. Torque retention with used bolts can vary, which may result in coolant or compression leakage at the cylinder head mating surface area.

  1. For vehicles through 1994, tighten the cylinder head attaching bolts, in sequence, to the following specifications:

    • Step 1:37 ft. lbs. (50 Nm)

    • Step 2:45 ft. lbs. (60 Nm)

    • Step 3:52 ft. lbs. (70 Nm)

    • Step 4:59 ft. lbs. (80 Nm)

  2. For 1995 vehicles, tighten the cylinder head attaching bolts, in sequence, to the following specifications:

    • Step 1: 15 ft. lbs. (20 Nm)

    • Step 2: 29 ft. lbs. (40 Nm)

    • Step 3: 37 ft. lbs. (50 Nm)

  3. For vehicles through 1992, retighten the cylinder head bolts, in sequence, one at a time in the following manner:

    1. Long cylinder head bolts: Loosen the bolts and back them out 2-3 turns. Retighten to 11-18 ft. lbs. (15-25 Nm). Then tighten the bolt an additional 85-105° and go to the next bolt in sequence.

    2. Short cylinder head bolts: Loosen the bolts and back them out 2-3 turns. Retighten to 11-18 ft. lbs. (15-25 Nm). Then tighten the bolt an additional 65-85°.

  4. For 1993-95 vehicles, retighten the cylinder head bolts, in sequence, one at a time in the following manner:

    1. Long cylinder head bolts: Loosen the bolts and back them out 2-3 turns. Retighten to 11-18 ft. lbs. (15-25 Nm). Then tighten the bolt an additional 85-95° and go to the next bolt in sequence.

    2. Short cylinder head bolts: Loosen the bolt and back them out 2-3 turns. Retighten to 7-15 ft. lbs. (10-20 Nm). Then tighten the bolt an additional 85-95°.

When cylinder head attaching bolts have been tightened using the above procedures, it is not necessary to retighten bolts after extended engine operation. However, bolts can be checked for tightness if desired.

Click image to see an enlarged view
Fig. 14: Cylinder head bolt tightening sequence-3.8L engine

 

 

  1. Dip each pushrod end in oil conditioner or heavy engine oil, then install the pushrods in their original position.

  2. For each valve, rotate crankshaft until the tappet rests on the heel (base circle) of the camshaft lobe. Torque the fulcrum attaching bolts to 44 inch lbs. (5 Nm) maximum.

  3. Lubricate all rocker arm assemblies with oil conditioner or heavy engine oil.

  4. Tighten the fulcrum bolts a second time to 19-25 ft. lbs. (26-34 Nm). For final tightening, camshaft may be in any position.

If original valve train components are being installed, a valve clearance check is not required. If a component has been replaced, perform a valve clearance check.

  1. Install the exhaust manifold(s) and the lower intake manifold. For details, please see these procedures located earlier in this section.

  2. Install the injector fuel rail assembly. Tighten the retaining bolts to 71-97 inch lbs. (8-11 Nm).

  3. Position the rocker arm/valve cover(s) and new gasket on cylinder head and install attaching bolts. Note location of spark plug wire routing clip stud bolts. Tighten attaching bolts to 80-106 inch lbs. (9-12 Nm).

  4. Install the upper intake manifold, then connect the ignition wires to the spark plugs.

  5. If the left cylinder head is being installed, perform the following: install oil fill cap, compressor mounting and support brackets, power steering pump mounting and support brackets and the alternator/support bracket.

  6. If the right cylinder head is being installed, perform the following: install the PCV valve, alternator bracket, thermactor pump and pump pulley, accessory drive idler, thermactor air control valve or air bypass valve hose.

  7. Install the accessory drive belt. Attach the thermactor tube(s) support bracket to the rear of the cylinder head. Tighten the attaching bolts to 30-40 ft. lbs. (40-55 Nm).

  8. Install the air cleaner assembly, including the air intake duct and heat tube.

  9. Connect the negative battery cable and fill the cooling system.

  10. Start the engine and check for leaks.

 

Ask Your Own Ford Question
Ask Bob Your Own Question
Bob
Bob
Bob, Auto Technician
Category: Ford
Satisfied Customers: 4,087
4,087 Satisfied Customers
Experience: 40 plus years general experience. ASE Certified Master Tech. (Expired, Retired)

Bob is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

AlvinC answered a question about my Ford truck that only someone with an in-depth knowledge of his subject would have known what was going on.

Rich DUSA

Because of your expertise, you armed me with enough ammunition to win the battle with the dealer. They are installing a fuel filter and fuel pump at no charge to me.

MollyUSA

I needed help with my car on Saturday morning....got a response in 5 minutes, and it was the perfect solution. Thanks again to your service.

Jason V.Kirkland, WA

I do know, after going though this with JustAnswer, that I can somewhat trust my mechanic but I will always contact you prior to going there.

BRNew Jersey

I would (and have) recommend your site to others I was quite satisfied with the quality of the information received, the professional with whom I interacted, and the quick response time. Thanks, and be sure that I'll be back whenever I need a question answered in a hurry.

Stephanie PElm City, NC

used your service this weekend with "Trecers" help. thank you ,thank you, thank you. replaced an A/C fan motor. Local Auto Zone had part. $15.00 "tracer" fee and $40.00 for parts, I saved several hundreds of dollers at a shop. i will recommend you and use you in the future.

David L.Richmond, TX

9 dollars, 2 hours of my time, and I drove away. Your diagnosis was right on the mark. Thank you so much.

PhilMarysville, CA

< Previous | Next >

Meet the Experts:

Ron

Ron

ASE Certified Technician

24,320 satisfied customers

23 years with Ford specializing in drivability and electrical and AC. Ford certs and ASE Certs

Chris (aka- Moose)

Chris (aka- Moose)

Technician

28,139 satisfied customers

16 years experience

John Mc

John Mc

Ford Technician

5,495 satisfied customers

19 years Ford Lincoln Mercury experience

Chuck

Chuck

ASE Certified Technician

1,685 satisfied customers

33 Years Experience,Ford Senior Master,ASE Master,L1 Advanced Engine Performance

Cam

Cam

Journeyman Automotive Technician

10 satisfied customers

GM Grand Master Technician 2007. 14 years Automotive experience.

Richard

Richard

ASE Certified Technician

1,524 satisfied customers

12 years at a Ford Lincoln/Mercury and Jaguar dealer as a technician and shop foreman.

Mike V.

Mike V.

Auto Service Technician

1,380 satisfied customers

25 years experience on all makes and models, Licensed NYS Inspector.

< Previous | Next >

Related Ford Questions
Service accutrac light ,no power steering ,turn signal not
service accutrac light ,no power steering ,turn signal not working … read more
HDGENE
HDGENE
Master Technician/Lead Technician
Associate Degree
2,835 satisfied customers
It cranks but wont start. I changed spark plugs it started
yes I changed spark plugs it started right up drove for 2 days and wont start again … read more
AMEDEE
AMEDEE
AUTOMOTIVE TECHNICIAN
Vocational, Technical or Trade Scho
9,105 satisfied customers
Told me on the way home to check power steering and
told me on the way home to check power steering and something trac. Right before I reached home I had no power steering. made it to my driveway … read more
David Craig
David Craig
OWNER/MECHANIC
Associates
4,403 satisfied customers
A few days ago change 2 engine coils and spark plugs and the
a few days ago change 2 engine coils and spark plugs and the engine light when off, but now came on again … read more
eurotec
eurotec
Vice President / Manager
Associate Degree
11 satisfied customers
Power steering not working. dash notification said fault
power steering not working . dash notification said fault o9ccured. do I need to add fluid? … read more
Stephen, MBA
Stephen, MBA
Master's Degree
166 satisfied customers
97 Taurus leaking coolant in front of passenger tire while
97 Taurus leaking coolant in front of passenger tire while sitting parked. Suspect lower radiator hose. … read more
Edward Clayton
Edward Clayton
Associate Degree
1,033 satisfied customers
08 Taurus with no heat on passenger side. Coolant level good
Yes.Coolant level good and I'm a very experianced shade tree mechanic. Heat good on driver side . Replaced the actuator that is behind the glove box(It had been thumping and upon examination of actuator internals there was a stripped gear. … read more
David Craig
David Craig
OWNER/MECHANIC
Associates
4,403 satisfied customers
2001 ford taurus i have replaced spark plugs and wires its
2001 ford taurus i have replaced spark plugs and wires its still skipping on # 4 … read more
Jared D
Jared D
Shop Supervisor
Bachelor\u0027s
3 satisfied customers
2000 Escort zx2; just replaced spark plugs and now runs
2000 Escort zx2; just replaced spark plugs and now runs rough - as though timing is a bit off. This car was not used for a long time. I have revived it for road use, but not changed anything for the e… read more
Ron
Ron
ASE Certified Technician
Vocational, Technical or Trade Scho
24,320 satisfied customers
Getting spark to distributor but not to spark plugs. 1986
getting spark to distributor but not to spark plugs. 1986 ford ranger. 4 cylinder 2.3 liter engine … read more
heavy_chevy_396
heavy_chevy_396
Vocational, Technical or Trade Scho
2,518 satisfied customers
Replaced the spark plugs on my 2011 Ford Taurus, but a month
Replaced the spark plugs on my 2011 Ford Taurus, but a month later I got P0305 so I went to autozone and picked up a coil and replaced it. Now a month after that, I have p0205 and p0305. I switched th… read more
Dan
Dan
Automotive Technician
Vocational, Technical or Trade Scho
25 satisfied customers
I have a spark plug in an Explorer that is stuck and now the
I have a spark plug in an Explorer that is stuck and now the spark plug is stripped … read more
heavy_chevy_396
heavy_chevy_396
Vocational, Technical or Trade Scho
2,518 satisfied customers
2013 ford taurus set code u0420, power steering went out,
2013 ford taurus set code u0420, power steering went out, has 14v but 0 amps across motor … read more
Chris (aka- Moose)
Chris (aka- Moose)
Technician
Vocational, Technical or Trade School
28,139 satisfied customers
Check engine light after changing spark plugs, stays on,
check engine light after changing spark plugs JA: Does the light stay on, or does it blink? Customer: stays on JA: What is the model/year of your Ford? Customer: 1992 F15 4.9 JA: Are you fixing your v… read more
Ron
Ron
ASE Certified Technician
Vocational, Technical or Trade Scho
24,320 satisfied customers
I have a 98 taurus v6 i have replaced the coil, camshaft and
i have a 98 taurus v6 i have replaced the coil, camshaft and crankshaft position sensor and no spark while cranking. any ideas … read more
TIM MOHR
TIM MOHR
SHOP OWNER
Master's Degree
8,037 satisfied customers
1999 ford taurus 3.0 L no power to camshaft position sensor,
1999 ford taurus 3.0 L no power to camshaft position sensor … read more
Kenny Z
Kenny Z
Ford Senior Master Technician
High School or GED
16 satisfied customers
Has coolant leak behind power steering bracket, Replaced
pulled powersteering bracket found residue by head gasket and freeze plug … read more
Chris (aka- Moose)
Chris (aka- Moose)
Technician
Vocational, Technical or Trade School
28,139 satisfied customers
2001 Taurus 3.0 Duratec just blew a spark plug out and there
2001 Taurus 3.0 Duratec just blew a spark plug out and there are no threads left. Whats the best and cheapest fix. Getting rid of this car after this.… read more
Ron
Ron
ASE Certified Technician
Vocational, Technical or Trade Scho
24,320 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x