Question about 1998 Honda Civic

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I'm told I need to replace my exhaust manifold in my '98 honda civic. I'm a bit of a keener so I am willing to do it myself. Is this worth attempting? Where do I find decent instructions on the step by steps?

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  • tomlatour Jun 20, 2009

    So..if I can get the bolts loose with some penetrating oil and make I don't strip or snap them off, I can do it? I figure I'll need the gasket to go with it, correct? My mechanic says he needs 600 bucks to change it. I just saw the part on line for 90 bucks.

  • tomlatour Jun 20, 2009

    thats great. thanks very much. I need to change an o2 sensor as well but that seams to be pretty easy.

    thanks again.



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Well you cna get a hayanes manual to help you with removing but if you break off a stud your going to need a straigh jacket and a wad of money to get it fixed, the important thing is check that all bolts will come loose before you dive in, if you have any that are trying to strip then leave it to a expert cause yo bring him a car that is three times the work to fix after you have rounded off the head of the bolts your going to pay triple plus buy new bolts.

Posted on Jun 20, 2009

  • Bruce Hathcock Jun 20, 2009

    you will need the gaskets and the donut and if you don't strip the bolts or break them off you can do the job, the biggest problem is breaking bolts but go for it if ya need help with a broken bolt I can give you some pointers to get it out, first warm the engine up then spray penetrating oil on them and let it set, next tighten the bolt slightly before loosening, this breaks the seal and then turn the bolts or nuts a couple of turns and add more oil let sit and then re-tighten the bolts then back off, that should save you any broken bolts. Be sure to have a swivel head ratchet and make sure the socket is the right size and do not let it slip.

  • Bruce Hathcock Jun 20, 2009

    it won't be easy with the 02 sensor unless you have the correct wrench. or socket.



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1 Answer

Just wonderng about the cat convertor for my 98 honda civic b/c the diagram at autozone looks like it is located in a different place that where i think it is

On the 1998 Honda Civic with the D16Y5 and D16Y7 engines, the Catalytic Converter is part of the Exhaust Manifold. If you have the D16Y8 engine, the Catalytic Converter is separate from the Exhaust Manifold, and is directly between the 1st and 2nd Oxygen Sensors.

Here is a diagram of the D16Y5 and D16Y7 Exhaust Manifold and Catalytic Converter:

I’m happy to help further over the phone at

Mar 10, 2011 | 1998 Honda Civic

1 Answer

Which o2 sensor is sensor 1 on a 98 honda civic hx?

the one at the bottom of the exhaust manifold as shown in below picture.


Oct 12, 2010 | 1998 Honda Civic

2 Answers

What other engine will fit a 97 civic ex?

The 96-98 Civic EX came with an OBD2A D16Y8 engine. That is the only engine that will go in as a direct replacement with your current engine ECU. It's an SOHC VTEC engine that has two extra connections not found on the other 96-98 Civic engines - a VTEC solenoid and a special oil sensor used to determine if VTEC engagement is possible. If you swap in an older Civic engine (92-95 generation) you'll have to convert the car to OBD1 (requires a special adapter hardness) and run the ECU that goes with whatever engine you use. This will break functionality of your OBD2 diagnostics port, and depending on which state you live in will cause you to fail emissions checks. If you install a D16Y8 engine from a 99-00 Civic EX, you will have to swap the intake and exhaust manifolds from your old engine to the new engine, and you will be able to continue to run your existing OBD2A wiring and ECU. The 99-00 Civic EX engines have additional sensors, since those engines are OBD2B. The easiest fix would be to find a SOHC VTEC D16Y8 from a 96-98 Civic EX, as it would be a direct plug and play replacement.

Apr 16, 2010 | 1997 Honda Civic

1 Answer

Need to install a new head gasket on a 1995 honda civic dx model with a 1.5 liter engine- automatic transmission- i would like to be able to print out instructions and pictures to do the work myself.

You dont need a print out all you need a bit of thought and a set of tools and what you do is to Drain radiator,then remove rocker cover /all parts on head inc exhaust manifold /air filter and manifold etc then the belt and all parts till you get to head bolts and remove them and head assy send head away for checking and replace all parts in reverse of removal
same order and refill with coolant and start BUT
Make sure the timing belt is timed correctly

Oct 06, 2009 | 1995 Honda Civic

2 Answers

Replace exhaust manifold on 2002 civic LX is it hard to do?

Yoou shouldn't have to remove the radiator for this fix. I would recommend using new gaskets and donuts due to the replacement manifold being used, it may be slightly warped from heat, would definately replace the gaskets and such. Hope this helps.

Jul 12, 2009 | 2003 Honda Civic

1 Answer

Catalytic converter

That is the correct place for the converter.

Mar 26, 2009 | 1998 Honda Civic

1 Answer

Locating and replacing oxygen sensor

Is the check engine light on with oxygen sensor codes?
If there are no problems with it leave it alone. i have seen factory sensors working good with over 300k miles on them. I recommend using dealer tune parts. at least NGK plugs. I have found misfire problems with aftermarket tune parts on several occasions.

there could be 2 oxygen sensors and they will be in the exhaust manifold or the catalytic converter or the "A" pipe between the manifold and catalytic converter. if you have the correct tools you can do it. sometimes requires special tools and rarely they are seized in the exhaust manifold and damage the manifold than it has to be replaced.

Dec 27, 2008 | 2000 Honda Civic

1 Answer

Driver's side window regulator

I just replaced the regulator in my mother's 98 civic ex and didnt need any special tools. I do recommend replacing the glass run channels on either side of the window. I have replaced the regulator twice and it is still having problems as I haven't replaced the run channels. If not replaced very soon I can see myself replacing the regulator...yet again!

Aug 04, 2008 | 1998 Honda Civic

2 Answers

Where is the forward oxygen sensor located

My husband cannot locate the oxygen sensor on the 1991 civic. Can it come out easily and where can I get a scematic or something to locate it? Sheryl

Jul 23, 2008 | 2000 Honda Civic

1 Answer

98 Honda Civic EX Exhaust.

Donut gasket. You need 2 of them.

Jul 23, 2008 | 1998 Honda Civic

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