Question about 2005 Honda Civic

2 Answers

Hi I have a 05 honda civic LX 5 speed with 74000 miles. Has a little bit of a rough idle, the check engine light is on and blinks when sitting in idle. When driving it stops blinking and just stays on with out the blink. OK, so got a dianostic and it says it is misfiring in all 4 cylinders. We changed spark plugs, didn't help. Then we noticed that when we unplugged the first coil pack closest to passenger side while the car is running it didn't disturb the the idle or the way the car was running. So we switched the coil packs around to see if the passenger side would start working or to see if coil pack went bad, still made no improvement. So we thought it was an injector, replace that and still same mild rough idle with check engine light. By the way the acceleration seems fine with no hesitation and same goes for starting the car, both are fine. Just in idle for the most part is the problem. Ok so what do you think I should do next or what do you think the problem is? Sorry for the long writing. Thanks!

Posted by on

  • Jason May 11, 2010

    When you say that you switched the coil packs around, did you replace the coil pack closest to the passenger side entirely with a new or known good coil pack, or did you just swap it with another one in this engine? If you just swapped it with another in the same engine, this would not prove or disprove whether it was defective, it would just move the misfire to another cylinder. I would recommend getting an inline spark checker, as well as checking the primary side of the coil pack for proper resistance. The specs for the proper resistance can be found in just about any Honda service manual for your specific model.

×

Ad

2 Answers

  • Level 1:

    An expert who has achieved level 1.

    MVP:

    An expert that got 5 achievements.

    Champion:

    An expert who has answered 200 questions.

    Governor:

    An expert whose answer got voted for 20 times.

  • Contributor
  • 435 Answers

For my experience i have ,it is definitely there is no compression in the first cylinder,that why when you unplugged the coil pack ,it did not make any difference,that means there is no compression mixture to burn,well now what is probably not making compression is the valve for the cylinder 1 is not closing enough ,you need to check the valve clearance in order to fix the problem.Thanks for explaining the problem clearly,so i can help you at the maximum.

Posted on Mar 27, 2010

Ad
  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Honda Expert
  • 268 Answers

Consider the EGR Valve or the O2 Sensor.

I wish everyone wrote as much as you, we'd have a lot more to go by... :)

Posted on Sep 29, 2009

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
New users get 2 Free calls (no credit card required) and instant help on almost anything you can think of (from cars to computers, appliances, handyman, and even pets).
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

02 Honda Civic LX (automatic) randomly stalls while idling at a stop sign or light. Help?


check timing, adjust valve clearance, check vacuum leaks. these are some that need attention.

Apr 14, 2017 | 2002 Honda Civic

1 Answer

I have a Honda civic LX 2009 and the RPM is 700. I understand that the normal RPM is 900. What could be the reason of the lower RPM on my car? Thanks in advance for your comments


I think the idle, in gear, should be about 750 rpm, definitely not 900. If you are looking at the tachometer, it isn't that accurate visually. a scanner should be connected to get an accurate reading. A little vibration at idle is not abnormal. But you might try adjusting the engine mounts to eliminate it.

Sep 17, 2014 | 2009 Honda Civic LX

1 Answer

Honda accord ex 2001 check engine light suddenly came on, car started to idle roughly


If it's running rough, chances are that it's misfiring. If the Check Engine light is flashing/blinking, it is definitely misfiring.
If that's the case, drive it as little as possible... Or straight to the mechanic because the more you drive it while it's misfiring, the higher the chance is of you ruining your catalytic converter.

Apr 24, 2012 | 2001 Honda Accord

1 Answer

Check engine light on.99 CIVIC lx rough idle. while driving almost stalled out. had to hammer the gas to .then it took off..HELP!!!!


First get the check engine light scanned at your local parts store, they'll do it for free. I'll bet the problem is a plugged EGR passage, which is very common on those engines.

Jan 04, 2011 | 1999 Honda Civic

1 Answer

92 Honda Accord LX- idles rough when started up


sticking valves. the short run of the engine free's them enough to enable runnig

Aug 14, 2009 | 1992 Honda Accord

1 Answer

We have a 1990 Honda civic LX 5 speed. 4 door. We are getting about 20 miles to a gallon. Check engine light comes on after a few minutes of running. There is a strong exhaust smell at idle and black...


Try to give it a little time because you just did some work, it may need to burn out... but black smoke is an oil burning problem. even though the car will still run you dont want this problem because if oil is burning in your engine, it means oil is getting where it does not need to be witch HOPEFULLY, is just a gasket but you are not just burning fuel so it may be affecting your gas mileage!. it sounds like old gaskets!? maybe? gaskets are a **** to replace especially in a civic, and they are everywhere! i know i just took the whole engine apart and put it back together again in a 95.

As far as the heavy exhaust smell... may be a leak or crack in the manifold!

And as far as your sensors and dash lights go, save your money and dont replace any more! especially if you smell a problem and are getting only 20 miles to a gallon (especially in a honda) because the sensors are probably right!

Tim

Jul 05, 2009 | 1990 Honda Civic

1 Answer

Civic 95 lx 1.5 engine dies when iddling


Check the IACV, its located at the throttle body, facing the firewall. They get junked up with carbon. Just clean it up with carb cleaner and bleed out the air from the coolant.

Jun 25, 2009 | Honda Civic Cars & Trucks

Not finding what you are looking for?
2005 Honda Civic Logo

267 people viewed this question

Ask a Question

Usually answered in minutes!

Top Honda Experts

yadayada
yadayada

Level 3 Expert

76649 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22219 Answers

Kevin Daniels

Level 3 Expert

1455 Answers

Are you a Honda Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...