Question about 1983 Ford Escort Gt

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Misfire on no 2 + 3 cylinders

Fitted new distributor plugs pionts condencer bougi corts distributor cap still experience a mis fire on 2 cylinders Ford Escort 1300 L 1983

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Hi

Have you checked your cylinder compressions ?

I would do that now.

Also try to find out which 2 cylinders are misfiring !

Let me know the outcome.

Good luck !

Remember to Fixya rate me thanks !

John.

Posted on Feb 16, 2009

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Po303 misfire


this code identifies that the computer in your vehicle has picked up that cylinder 3 is not fireing properly so i would say change the plug in cylinder 3 if not cured change the plug lead if thes dosent work then distributer cap or the electronic distributer check all these things in this order its just elimination really

Sep 02, 2012 | Ford Taurus Cars & Trucks

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Had sparks plug changed 3 times, still showing multiple misfiring, engine light on and it cuts off someimes


What codes are stored? are wires all in good shape (tightly connected, not broken)? distributor cap tight and contacts inside good? Knowing the codes would be a good start in where to look for the cause(s) of the misfiring and shutting off. I had a similiar experiences a couple years ago. One plug wire was broken and caused it to misfire when it was raining. The code stored in the computer showed cylinder 2 misfire, which led me to search for caused specific to cylinder 2. Also, later I had my car just shut off while driving. I checked the distributor and one of the clips that hold the cap to the distributor was broken, causing the cap to flop around (and random misfires).
Hope this helps! :-)

Jul 12, 2011 | 1997 GMC Yukon

1 Answer

I have a 98 honda accord 5 spd it has a 4cyl motor vtech i just need to know how to fix a miss fire in cylinder 2 and wich one is cylinder 2


Cylinder #2 is the the second spark plug counting from the right to left.
EX.Below are spark plug on engine
engine
-------------------------------
' (oil cap) '
' (4) (3) (2) (1) '
'_________________'

Your misfire can be cause by couple of things but the cheapest way that you can try to fix your car is to do a tune up by replacing:
1)all spark plugs
2)do a oil change
3)spark plug wires
3)distributor cap and rotor

note misfire can be cause by:
1.bad gas
2.spark plug and/or wire
3.distributor cap and/or rotor
4.valve adjustment
5.injector
6.off timing
7.ECM
8.bad wiring(power, ground or feed line)

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1 Answer

Dodge obd code p0305


The DTC (Data Trouble Code) P0305 is the generic OBD-II DTC for "Cylinder 5 Mis-fire Detected", and it means that the OBD-II control unit has detected a problem with the #5 cylinder.

The problem could be a faulty spark plug, or a spark plug wire for the #5 cylinder, or the coil for that cylinder could be faulty (2.7 liter), or the distributor or distributor cap could be faulty (3.0 liter), or the fuel injector for the #5 cylinder could be faulty.

Before you look for any electrical problems causing the mis-fire on the #5 cylinder, first do a compression check to be certain that the mis-fire is not caused by a mechanical problem.

Here are the firing order diagrams for the 2.7 and the 3.0 liter enginesto help assist you.


2.7 liter

c709010.jpg

3.0 liter

bf79aec.jpg

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I took of*** my spark plug wires working on my small block 350 pickup and I don't remember the the firing order to put the new wires back on. Is there a diagram anywhere or is it even that difficult to...


Next time number each lead before you remove it and no. the dissy cap as well

The firing order, which should be cast into the intake manifold, for the chevy small block V8 is 1-8-4-3-6-5-7-2. The firing order is the numerical sequence in which the spark plugs are fired. The insertion position of each spark plug wire around the circumference of the distributor cap can be found according to a clock face. The insertion sequence determines the firing order. The firing order is followed clockwise around the distributor cap starting from the 6:30 position with the 6:30 position being the number one cylinder spark plug wire.
On classic chevy small block engines that use ignition breaker points instead of electronic ignitions, the number one cylinder is the one immediately clockwise of the small metal sash cover on the distributor cap. The firing order starts here. There is no sash cover on the distributor cap for GM HEI electronic ignitions, and the firing order is the same, but starting at the 5:30 position.
The firing order makes sense if you know how the cylinders are numbered. The number one cylinder is the front most on the drivers side and 2 being the front most on the passenger side. From front to back, the cylinders are odd numbered on the drivers side, and even numbered on the passenger side.
See the diagram; Click to open a printable larger image in a new window. The firing order starts with the number one cylinder. We would connect the number one spark plug wire to the distributor cap terminal in the 6:30 position. distributor.pngSince the next cylinder in the firing order is 8 (passenger side rear), we connect the number 8 spark plug wire to the next distributor cap terminal (approximately 7:30 position) in the clockwise direction from number one. You need to be sure you continue the firing order in the clockwise direction around the chevy small block distributor cap from the last installed spark plug wire. Setting the rest of the firing order is just a matter of repetition. Be sure to count the spark plugs from front to back on each side of the motor to identify the correct cylinder number in the firing order.

Jun 21, 2010 | Cars & Trucks

2 Answers

I keep getting a misfire in cyclinder 4? the car also now will not accelerate past 3000 rpm's i pulled the plugs and only 4 looks like its not firing i replaced it last week... there is no oil in the water...


The very first thing that you should do next is to take a compression reading especially the #4 cylinder, to determine if the mis-fire is caused by a mechanical problem or an electrical problem. If you are looking for an electrical problem when the problem is actually a mechanical one, you could wind up wasting a lot of money and time.

A mechanical problem that would cause a low compression mis-fire in the engine could be a burnt or bent intake or exhaust valve, a worn out or broken piston or compression ring, or even a warped cylinder head.

An electrical mis-fire would most likely be caused by a faulty ignition coil, a worn out or cracked distributor cap, worn out ignition wires, worn out spark plugs, or a faulty fuel injector.

Jun 05, 2010 | 2002 Hyundai Santa Fe

1 Answer

Reads codes of po300,po302,po303,po305


Hi these are mis-fire codes ,
P0300 is a general mis-fire detected code the others relate to specific cylinders,
P0302 is cylinder 2 misfire
P0303................3........
p0305..................5........
I would check your spark plugs first if Ok you need to make sure the coils are working ok for this you need an osciloscope to check output voltage if your not sure then take to a qualified mechanic with Cadilac experience it could be caused by an air leak,bad ECT sensor or even Mass air flow sensor ,codes only tell you the result not the cause

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2005 dodge ram 1500 4.7 misfire cylinder 2 52,000 miles


have a miss fire in 3 and 5 cylinder on a 2005 Ram 1500 4.7 have relpaced coli packs and still does it have a knock in upper engine around miss fire cylinders. what else can i do

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1 Answer

Misfire after tune up


Since you have a misfire, the fuel in that cylinder isn't burning. Are you sure you have the firing order correct. Also try using one of your old plugs and wire for that cylinder and see if it works. If you only checked for spark at the wire, you might just have a faulty new plug- it happens.

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