cylinder misfire?

That could be this guide should help us fix it

https://www.2carpros.com/articles/engine-misfires-or-runs-rough

Please run down this guide and report back.

my car is pulling a code p0300 random misfire. what. what part needs replaced?

need to find out the reason first.

codes never identify bad parts, just failed systems.

start witha compression test. check plugs, coil/wires as well.

Roy

My gas guage said I had 1/8 it started missing and shut off, I put gas in and after cranking for a while it started. Then today it said I had just under a half a tank and did the same thing. I thought it could be the sending unit although I am not sure how much gas it actually used. If I change the sending unit how can I be sure that was it? could it be something else that would cause it to shut if it doesnt have a certain amount of gas in it like the fuel pump, and if so why would the amount change?

What to do is fill the tank and set the trip odometer. You should get nearly 300 miles + from a tank of fuel. Run it until it gets near 300 miles and see what the fuel gauge says and then check how many gallons of fuel the tank takes to refill. I believe you have a 16 gallon tank.

Let me know what you find.
Joe

I did what you said and determined that the guage is off by about 1/4 of a tank. So now is it the guage itself or something else like the sending unit?

Thanks

Chances are it is the sending unit from the tank. The only way to be 100% sure is to remove it and check voltage drop as the float drops. I wish I had an easier answer for you.

Let me know if you have other questions.

Joe

Car misfires and shakes badly at 2750 rpms. I replaced all spark plugs. I also replaced the coil and fuel injector for #2. Still misfire on #2. I get codes p0202 and p0302. Compression test was done and it was good. Can it be the injector connector and how do i check it? I need to take intake manifold to get to injectors.

check MFI relay in fuse box, then do test in pic and also test pin 1 for 12 volts

see other pic

I have a 4 door 2005 Dodge Stratus and I turned on the interstate this morning when it started to skip violently. I couldn't accelerate over 55 mph or 2.5 rpm and it lasted for awhile. i got it back to someone I know who knows a little bit about cars to show him and it ran fine!. The engine light is on... any help please???

Once the Check Engine light turned on, there is a diagnostic fault code stored in the Engine Computer's memory. Many auto parts stores will read those codes for you for free. That will get you into the right circuit or system with the problem, not necessarily the specific defective part.

Yeah I went to AA and they ran through the codes and told me I needed a CPS... so I know what my next car investment will be haha. Thanks for answering.

2005 dodge stratus 2.4L 4cyl
Misfire code p0302. plugs and wires replaced 1year ago

I'd still visually check for spark at the plugs. Check for injector pulse, also, use a noid lite.

How do you check the electrical connector to the injector? You have to take the intake manifold off or can you do that without removing it and how do you do it?

When the car gets heated up or it is really hot outside the car starts to chug and sputter then dies. The check engine light came on....and the car will not start until it is cooled down outside and the car is cooled off.

Check engine light:

Have the computer scanned for code/s-you have a problem within the engine management system that caused the CEL to turn on-This is your starting point of diagnosis,finding out what's going on.

I have an intermittent misfire at idle & intermittent hesitation. New plugs 5000 miles ago. Seems to be worse the warmer the ambient temperature - engine temp seems to have no bearing on miss. No check engine light.

Misfires can be caused by worn or fouled spark plugs, a weak spark (weak coil, bad spark plug wire), loss of compression, vacuum leaks, anything that causes an unusually lean fuel mixture (lean misfire), an EGR valve that is stuck open, dirty fuel injectors, low fuel pressure, or even bad fuel.

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,

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)

Just double checked, this how I have them routed.

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,  Date of Issue:   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,  Date of Issue:   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

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.

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.

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.

Going by what I found in this diagram, you did install your plug wires incorrectly, re do them as shown in picture!

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.

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!!

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.

Thaks for the points, so all is well...

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.

Swap coils, if miss follows, then coil, if not then compression test.

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

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?

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

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.

Thanks a lot

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?

Has the check engine light come on? Have you checked fuel pump pressure?