Top 20 2004 Honda Civic Questions & Answers

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that not your code dealer with vin and proof of ownership

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It sounds like the engine is starved for fuel. How long since it's had a new fuel filter? Would be a cheap place to start.

First off obtain the shop manual for your model. It will give you steps and photos on how to fix almost anything on your vehicle. A good shop manual will save you thousands in parts and time.

Hi have you checked the brake fluid level ?

Check the manual for flashing key.You can also google the question and go to a Civic forum

LIKELY!

First things I would look at is,did they put 10w30 oil in and not 5w20 or 0w20,it makes a difference in mileage (if they run out of the correct viscosity oil they WILL put in what they have). Did the service include a spark plug change?Is the spark plug gap correct? Did they do a brake service?Is a brake dragging,a little to tight?Did they clean the throttle body?Maybe the engine was running a little lean before and now is at the proper fuel mixture,with less MPGs but running clean at the exhaust. Weather conditions?Head winds and colder temps reduce MPG.

not normally as it is in the timing cover case or behind the bottom sprocket or drive pullet for the timing belt if it is a rear main seal it will require the transmission removal as well as the flywheel /torque converter you were not specific as to which oil seal required replacing. best get a workshop manual as that book shows the procedure to replace seals

I would have it tested with a gas meter to see if the head gasket is leaking, I bet it is.

Tune up the car with the following items included: - Clean the throttle body and free up the idle air control valve. - Adjust the valve clearance according to the manufacture's specifications. - Adjust the spark plug gaps to the standard. - Clean or replace element air cleaner. - Re-learn the idle speed.

cold,b4 it is run or you will blow it out

2004 Honda Civic Timing marks.

Check your key if not bent. Try with second copy - you should have two key.s

Need code to fix it

By a belt for the same model without air.

On the water pump there is a weep hole when the pump fails they tend to leak out of the weep holes. Its also possible the water pump seal failed too. On this car the timing belt drives the water pump. If you drive on it and the pump locks up. You will be replacing the motor or the whole top end of the engine due to bent valves. Its time to replace the water pump and timing belt. Then you will be good to go again. So do not drive it for the sake of saving your engine. I'd tow it in to the shop or replace the belt and pump yourself.

Did the old belt break? If so, check to see if the valves are bent. If this isn't the issue, 1 tooth off will keep it from starting, the cam marks have to be aligned with the alignment marks on the head.

you will not find torque settings for the cylinder head bolts. the setting to get the correct tension will start at 30ft/lb and then becomes an angle of turn of the head stud. So what you will be looking for will be something like start at 30ft/lb the turn 90 degrees then another 90 degrees and then 30 degrees .( these are not the figures just an example of what you will be reading as a head tension setting) you will need and angle gauge ( around $30.00 from a good auto parts store ) to do the job