PT Cruiser Forum  
Advertisements
       

Go Back   PT Cruiser Forum > 2.4L Turbo Forums > General Turbo Discussions

PT Cruiser Forum

Advertisements
2004 Engine misfire and flashing check engine light

 
Like Tree2Likes

Reply
 
LinkBack Thread Tools Display Modes
  #1 (permalink)  
Old 18 Jul 2010, 11:43 am
Fresh Cruiser
 
Join Date: Jul 2010
Location: Summerville, SC
Posts: 5
Default 2004 Engine misfire and flashing check engine light

Good Morning,
I am getting very frustrated with my 04 turbo cruiser. This vehicle has been back to the dealer four times for the same problem. The problem is a number four cylinder misfire. To date the dealer has told me the following:
1. Needs tune up. Dealer replaced plugs and wires.
2. Needs PCM. Replaced PCM.
3. Might need ignition coil.
The first time, the check engine light came on again after about 4 miles.
After the PCM was replaced (I had to wait two weeks for the part) the light
came back on after about 2 hours.
I have not change the ignition coil....should this be my next step.....I live in SC and it is very hot here.....could this be a "heat related" issue with the coil?
Thanks for your help.
Reply With Quote
  #2 (permalink)  
Old 18 Jul 2010, 12:24 pm
Obsessed Cruiser
 
Join Date: Sep 2001
Posts: 27,744
Default Re: 2004 Engine misfire and flashing check engine light

Welcome to the forum,

First, we've been told that you shouldn't run the car if the engine light is flashing. That's from a mechanic on the forum. To quote exactly what he said:

When the check engine light flashes, it means there is a severe drivability problem. For instance, say you leave your gas cap off or your cam sensor were to fail. The light would come on solid.
However, say you had a single or multiple misfire which could lead to engine damage if you were to continue driving. The light would come on and flash.
NEVER drive or allow the engine to run with a flashing check engine light!


The coil, to my knowledge is one of the last things to look at. 99% of the time, all the misfires and problems are something else. Has anyone looked at a vacuum leak around the No#4 cylinder? There have been cases where the upper manifold or other part has had a small leak and caused the code your getting.

Are you paying for the parts that the dealer is throwing at your cruiser? Hope not.
4drturbo likes this.
__________________
Rules of the forum have been updated as of *07/07/2019* Please read them over.

- All decisions by the Moderator are semi-permanent, can and may be changed at his discretion but definitely will be the final word. Any action performed by the Administrator or Moderators are not to be discussed on the forum.

Last edited by CREWZIN; 18 Jul 2010 at 12:31 pm.
Reply With Quote
  #3 (permalink)  
Old 18 Jul 2010, 12:31 pm
Fresh Cruiser
 
Join Date: Jul 2010
Location: Summerville, SC
Posts: 5
Default Re: 2004 Engine misfire and flashing check engine light

Thanks for the information.
First, Yes.....paid for it all.....except for the PCM which was under warranty.
No, I do not believe they check for a vacuum leak. I paid $109.00 for their
troubleshooting and the only thing they told me was the PCM was bad. Is this leak something I can check with some soapy water or spraying wd40 in the area?
Thanks again.
Reply With Quote
  #4 (permalink)  
Old 18 Jul 2010, 12:34 pm
Obsessed Cruiser
 
Join Date: Sep 2001
Posts: 27,744
Default Re: 2004 Engine misfire and flashing check engine light

Yes, that's what some of the owners say to use. I've never tried it myself. Seems a bit messy and I'm a clean freak when it comes to keeping the engine clean.
__________________
Rules of the forum have been updated as of *07/07/2019* Please read them over.

- All decisions by the Moderator are semi-permanent, can and may be changed at his discretion but definitely will be the final word. Any action performed by the Administrator or Moderators are not to be discussed on the forum.
Reply With Quote
  #5 (permalink)  
Old 18 Jul 2010, 12:46 pm
Fresh Cruiser
 
Join Date: Jul 2010
Location: Summerville, SC
Posts: 5
Default Re: 2004 Engine misfire and flashing check engine light

Yes, Understand.....I like things to look nice also....but right now, I just want to fix this stupid light and rough idle. You would think the dealership would know what they are doing.....and this is the foreman that is working on it.
Reply With Quote
  #6 (permalink)  
Old 18 Jul 2010, 12:56 pm
Obsessed Cruiser
 
Join Date: Sep 2001
Posts: 27,744
Default Re: 2004 Engine misfire and flashing check engine light

Before you go too far, here's some reading for you.....

Error Code P0304 Cylinder 4 Misfire Detected

05 PT Cruiser. 60,000+ miles. Cylinder #4 misf... - JustAnswer

PT Cruiser 2.4 Check Engine Light PO300-PO302

Error Code P0304 Cylinder 4 Misfire Detected

P304 misfire and loud noise
__________________
Rules of the forum have been updated as of *07/07/2019* Please read them over.

- All decisions by the Moderator are semi-permanent, can and may be changed at his discretion but definitely will be the final word. Any action performed by the Administrator or Moderators are not to be discussed on the forum.
Reply With Quote
  #7 (permalink)  
Old 18 Jul 2010, 01:44 pm
Fresh Cruiser
 
Join Date: Jul 2010
Location: Summerville, SC
Posts: 5
Default Re: 2004 Engine misfire and flashing check engine light

Thanks for the reading. Seems like a common problem with no clear answer.
I will try the wd40 on the intake.
Thing is, the car runs great....just rough and idle and the CEL.
Also, sometimes the light is off, sometimes it is on solid and sometimes it blinks.
Seems to indicate an intermittent problem.....this is why I was thinking along the lines of a heat related issue in the electrics....coil, plug breaking down....
Maybe some electricians tape over the CEL.....??? LOL.
Reply With Quote
  #8 (permalink)  
Old 19 Jul 2010, 11:24 am
quicksilverdon's Avatar
Obsessed Cruiser
 
Join Date: Nov 2003
Location: Felton, Delaware
Posts: 20,501
Default Re: 2004 Engine misfire and flashing check engine light

# 4 missfilre is quite common - spray WD-40 at lower intake joint - where it meets head - if idle smooths out, it's the lower gasket.
Coil impacts 2 cylinders at a time and is usually very reliable.
Since they did plugs & wires, that shoukd be okay - that's the usual cause.
Only other cause is a clogged injector - try some lucas fuel injection cleaner.
__________________
"Anti-intellectualism has been a constant thread winding its way through our political and cultural life,
nurtured by the false notion that democracy means that 'my ignorance is just as good as your knowledge."
Isaac Asimov"

'05 Limited Turbo Lite, (Silver, of course)4-wheel ABS, Sunroof, Spoiler. Mods: E&G Classic grill, K&N FIPK, BTG duals, rear lowered 1.5", LED washer lights, $20 catch can, Aoogah horn, Weatherflectors, Sunroof Deflector, Fuzzy Dice, rear logo flames, rear pinstripe graphic, Gen3 Taillights, rear sway bar, hood struts, Strut bar.
Traded in '02 Silver Touring Edition w/87,000 miles
Reply With Quote
  #9 (permalink)  
Old 19 Jul 2010, 11:33 am
Fresh Cruiser
 
Join Date: Jul 2010
Location: Summerville, SC
Posts: 5
Default Re: 2004 Engine misfire and flashing check engine light

Thanks for the input. I will try that. Question, wouldn't it run rough all the time with a leaking intake?
Reply With Quote
  #10 (permalink)  
Old 19 Jul 2010, 12:57 pm
quicksilverdon's Avatar
Obsessed Cruiser
 
Join Date: Nov 2003
Location: Felton, Delaware
Posts: 20,501
Default Re: 2004 Engine misfire and flashing check engine light

If you read the posts, those who had leaky gasket said it ran fine at speed - it was idle problems.
4drturbo likes this.
Reply With Quote
Reply

Tags
check engine light, coil, misfire, pcm


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Check Engine Light Yellow PT General PT Cruiser Discussions 6 23 Jul 2010 02:57 pm
Check Engine Light Flashing on acceleration watkipk General Turbo Discussions 10 05 Dec 2009 10:24 am
Check Engine Light On vicky52 Tech & Performance Forum 11 23 May 2009 01:23 am
2004 PT Cruiser; check engine light on, dashboard gauges off kakes773 General PT Cruiser Discussions 3 23 Nov 2008 08:37 pm
check engine light ccprez Testing 12 16 Mar 2008 08:22 am


All times are GMT -5. The time now is 01:36 pm.




Powered by vBulletin® Version 3.8.2
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
LinkBacks Enabled by vBSEO 3.6.0 PL2 © 2011, Crawlability, Inc.
vB.Sponsors