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Cylinder misfire?

Tiny
CORPSVETTE
  • MEMBER
  • 4 POSTS
  • 2004 DODGE STRATUS
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 99,000 MILES
Prior to replacement of plugs and wires engine ran fine minus a VERY intermittent misfire on cylinder 4. Now having installed new plugs and wires the engine runs incredibly rough and tries to stall. When placed in drive or reverse the entire vehicle will begin to shake violently. I then removed the plugs and wires and put the old ones back on to see if the proglem was the new parts. Even with the old plugs and wires the engine will misfire horribly.
Currently there are no dtc's though I have not driven the vehicle under these rough conditions to allow it to process a drive cycle. The only thing I can think of is a coil went bad during removal and installation of new plugs, I just don't want to throw parts at the car without knowing the cause of trouble.

Thanks for any help.
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Wednesday, August 19th, 2020 AT 8:33 PM (Merged)
Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Re check your firing order, and plug wire installation. 2.0 it is 1-3-4-2 The cylinders run from 1-4 from front (right side) to back(left side)
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Wednesday, August 19th, 2020 AT 8:33 PM (Merged)
Tiny
CORPSVETTE
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Just double checked, this how I have them routed.


https://www.2carpros.com/forum/automotive_pictures/438347_CIMG0002_1.jpg

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Wednesday, August 19th, 2020 AT 8:33 PM (Merged)
Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
This is a tech bulliten on 2.4 engine plugs, I dont think it would cause your problem, but you never know...NEW SPARK PLUG FOR 2.4L ENGINE TECHNICAL SERVICE BULLETIN Reference Number(s): 08-008-04, Â Date of Issue: Â March 02, 2004 CHRYSLER: 2003-2004 Sebring Convertible/Sebring Sedan (JR), PT Cruiser (PT), Voyager (RG), Town & Country (RS) DODGE: 2003-2004 Caravan (RS), Stratus Sedan (JR) JEEP: 2002-2004 Liberty (KJ)/Cherokee; 2003-2004 Wrangler (TJ) GROUP: Electrical Superceded Bulletin(s): 08-034-03, Â Date of Issue: Â November 28, 2003 Related Ref Number(s): 08-008-04, 08-034-03 ARTICLE BEGINNING MODELS NOTE: This bulletin supersedes service bulletin 08-034-03 dated November 28, 2003, which should be removed from your files. This bulletin includes additional models. 2003-2004 (JR) Sebring Convertible/Sebring Sedan/Stratus Sedan 2002-2004 (KJ) Liberty/Cherokee 2003-2004 (PT) PT Cruiser 2003-2004 (RG) Chrysler Voyager 2003-2004 (RS) Town & Country/Caravan/Voyager 2003-2004 (TJ) Wrangler NOTE: This bulletin applies to vehicles equipped with a naturally aspirated (non-turbo) 2.4L engine (either sale code ED1 or EDZ). DISCUSSION
Page 1 of 2 NEW SPARK PLUG FOR 2.4L ENGINE -2004 Dodge Stratus SE


https://www.2carpros.com/forum/automotive_pictures/62217_plugs_1.jpg

The new style spark plug is now recommended and preferred for use in all 2004 model year vehicles and all prior model year vehicles that are equipped with a 2.4L engine. See above table and verify correct engine sales code. NOTE: To eliminate concerns of a possible high secondary ignition voltage flashover, caused by a thermal set of the ignition cable spark plug boot(s) to the old style spark plug (RE14MCC5), install new ignition cables when replacing the old style spark plugs (RE14MCC5) with the new style spark plug(s) (RE16MC or LZTR4A-11) for the first time. POLICY Information Only.
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Wednesday, August 19th, 2020 AT 8:33 PM (Merged)
Tiny
CORPSVETTE
  • MEMBER
  • 4 POSTS
I put the original spark plugs back in and still have the same problem. If it were solely the fault of the plugs and wires, installing the original worn out parts should have returned the vehicle to at least a driveable state I would think.
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Wednesday, August 19th, 2020 AT 8:33 PM (Merged)
Tiny
EAHAUKOM
  • MEMBER
  • 5 POSTS
I am having the same problem with my 2000 Stratus, I just got a new distributor, cap, spark plugs and wires. It drove fine for about a week and then started misfiring in reverse and first, shaking violently until finally thunping into second gear. I hope there is a reasonable answer to this, for your sake and mine.
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Wednesday, August 19th, 2020 AT 8:34 PM (Merged)
Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Going by what I found in this diagram, you did install your plug wires incorrectly, re do them as shown in picture!


https://www.2carpros.com/forum/automotive_pictures/62217_Firing_Order_24_1.jpg

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Wednesday, August 19th, 2020 AT 8:34 PM (Merged)
Tiny
BCHILDRESS
  • MEMBER
  • 2 POSTS
  • 2004 DODGE STRATUS
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 95,000 MILES
This car has 2 issues. 1st - The engine over heats all the time. I've replaced the thermostat. It helped, but still not fixed. Problem 2 is I get a cylinder 3 misfire code. I had the tank cleaned out. Put in new fuel filter. This keeps happening. Not all the time. Also seems to happen more when the engine overheat light comes on.
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Wednesday, August 19th, 2020 AT 8:34 PM (Merged)
Tiny
CORPSVETTE
  • MEMBER
  • 4 POSTS
Attention to details you foil me again!
That'll teach me not to do favours for friends when i'm tired LOL!

Thanks for all the help!
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Wednesday, August 19th, 2020 AT 8:34 PM (Merged)
Tiny
MMPRINCE4000
  • MECHANIC
  • 8,548 POSTS
Are the cooling fans kicking on?

The misfire could be a plug or possible coil.

I would replace spark plug, if problem persists, then check compression on all cylinders.
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Wednesday, August 19th, 2020 AT 8:34 PM (Merged)
Tiny
MERLIN2021
  • MECHANIC
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Thaks for the points, so all is well.
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Wednesday, August 19th, 2020 AT 8:34 PM (Merged)
Tiny
BCHILDRESS
  • MEMBER
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Yes the cooling fans are coming on. Spark plugs are new. I did this to see if it would fix the mis-fire. Should I swap the coils on 3 & 4.
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Wednesday, August 19th, 2020 AT 8:34 PM (Merged)
Tiny
MMPRINCE4000
  • MECHANIC
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Swap coils, if miss follows, then coil, if not then compression test.
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Wednesday, August 19th, 2020 AT 8:34 PM (Merged)
Tiny
KNGPETE
  • MEMBER
  • 3 POSTS
  • 2003 DODGE STRATUS
  • 112,000 MILES
My car jerks at 30mph when I take foot off gas pedal and today it shut off at stop light with no warning and won't turn over light and everything power still works what could it be
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Wednesday, August 19th, 2020 AT 8:34 PM (Merged)
Tiny
WRENCHTECH
  • MECHANIC
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Won't turn over?

Does that mean the starter cranks the engine and it won't start or the starter is not cranking the engine?
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Wednesday, August 19th, 2020 AT 8:34 PM (Merged)
Tiny
KNGPETE
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The starter is not cranking the engine I think it stop on my wife at a stop light with no sign of cutting off I had starter, battery, alternator check no problem it just won't start
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Wednesday, August 19th, 2020 AT 8:34 PM (Merged)
Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
You can check all the fusible links and maxi fuses but other than that, the circuit will have to be troubleshooted by a tech following a wiring diagram.
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Wednesday, August 19th, 2020 AT 8:34 PM (Merged)
Tiny
KNGPETE
  • MEMBER
  • 3 POSTS
Thanks a lot
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Wednesday, August 19th, 2020 AT 8:34 PM (Merged)
Tiny
USAELITE10
  • MEMBER
  • 2 POSTS
  • 2002 DODGE STRATUS
  • 4 CYL
  • 4WD
  • AUTOMATIC
  • 63,000 MILES
I was driving home late last night and all of a sudden my car started skipping when I was about 10 mins from my house. This morning when I went to go check on it, it would crank and skip then cut off. Does anyone knows what the problem could be?
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Wednesday, August 19th, 2020 AT 8:34 PM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
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Has the check engine light come on? Have you checked fuel pump pressure?
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Wednesday, August 19th, 2020 AT 8:34 PM (Merged)

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