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1990 2.9liter ford ranger and its misfire on4,5,6

Check coil, new plugs, have speak and compress is at 120 in cyclinder 4

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Check your fuel injector wiring harness connectors with noid light one wire has power constant the other is a pulse to actuate the injector all the cylinders have good compression and all that you have done and still misfire then it has to be injector or wiring possible bad ground , those 3 cylinders is on the same bank , noid lights you can get at your local auto parts

Posted on Jan 04, 2014

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Posted on Jan 02, 2017

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SOURCE: I have a 2005 ford ranger 3.0L with repetitive engine codes

these engines did have some exh valve issues, service bulletin 05-26-3. one other thing to verify is that the cam synronizer (CMP) is correctly installed. if its not right on, its way off.

Posted on Oct 14, 2009

ministock48
  • 258 Answers

SOURCE: Ignition coil pack on Ranger 1999 misfire on #3

replace coil

Posted on Oct 23, 2009

fingaz22
  • 1068 Answers

SOURCE: 2004 ford ranger edge has blinking check engine

have the crank sensor check for erratic operation. if you have done all of that then there is nothing else. and they way the computer knows it is misfiring (if it is) false code maybe and could be bad crank sensor. good luck

Posted on Oct 25, 2009

SOURCE: My 98 ranger is still misfiring on cylinders 2 and

most likely the coil or ignition module

Posted on Dec 11, 2009

alicantecoli
  • 22219 Answers

SOURCE: My 2002 Ford Ranger Edge V-6 is misfiring.

havent a clue here ,one cylinder now another missing ,only one thing comes to mind here and thats the coil pack ,check the voltage across the battery with engine running at 1500rpm and if its higher than 15.5 volts of their abouts then the alternator regulator is playing up and this would cause problems with the coil pack or the ECU ,also the radio could blow and lots of bulbs.Other that this i would need to get my greasy hands on it and give the magic hammer treatment

Posted on Jan 02, 2010

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Both coils do not fire on 1 and 4. Will start but only running on 2 cylinders. Could both coils be bad or should I look elsewhere?


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Mar 1, 2012 - Spark plugs for cylinders #2 and #3 get spark at the exact same time. ...voltage -12 Volts) to both individual ignition coils within the coil pack. ... Ford Mustang or Ranger (or 2.3L Mazda B2300), this is what you'll need ... for this 'Switching Signal' at the coil pack... but you can also test this ... 1991, 1992, 1993.

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Apr 3, 2012 - Bad Fuel Injectors can cause a Misfire Condition. ... the ignition system on the 2.3L Ford Mustang or Ranger consists of 2 ignition coil packs, ...

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Jul 27, 2007 - My truck is giving the code misfire in number 4 cyl. I replaced my spark plugs, Wires, Coil packs (both of them) and all my fuil ... three (3.0L v6) go bad, the fuel/air mixture gets messed up. Judged: 2. 2 ... My truck runs rough only at idle. ...code for ford ranger 2002, 2.3 5speed. truck runs like a champ but that ...

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Jan 31, 2016 | Cars & Trucks

1 Answer

P0303 cylinder 3 misfire


If # 3 cylinder has spark at the plug it must fire if the following conditions apply. Injector is supplying fuel to the cylinder. and cylinder compression tests OK . So check above ,one or both must be at fault.

Jul 17, 2014 | 2003 Ford Ranger Regular Cab

1 Answer

I have a 02 rsx type-s, my check engine light is flashing and solid at points, but always on, when i had a scanner to check the code it gave me misfire in all 4 cyclinders, i changed the spark plugs a


misfire in all 4 cyclinders hmmm...... compression tester check compression 125psi is good 100 and lower is bad (head gasket they go bad) if that is good, do fuel filter,, or charge system is bad, or bad ground or bad coil

Feb 12, 2013 | 2003 Acura RSX

1 Answer

1997 pontiac grand am with no. 4 cyclinder misfire


What have you checked so far? What engine? Check spark plug for ware, cracks and carbon tracking. Check the ignition wires for damage and voltage leaks, this could be done by spraying the wires with soapy water. If the car runs rough or you see arching replace the wires. Check for spark and check the ignition coil and replace as needed.if you still having problems you may have to check the injector or perhaps do a compression test.

Jul 08, 2012 | Pontiac Grand Am Cars & Trucks

1 Answer

2005 Ford Ranger: OPD Code P0301 Cylinder 1 misfire, how do I fix problem? How do I reset code?


check spark plug,coil,wire,first if all good i would check compression,only way to reset is with a scan tool

Oct 15, 2009 | 2005 Ford Ranger

1 Answer

2002 Ford Ranger check engine light indicating misfire


Code P0301
Ignition Coil Pack
Ignition Cable
Spark plug
Clog or dirty fuel injector
Evap canister purge valve
Engine Compression
fuel pressure

you have 3 type of engine for your truck
2.3L 4 cylinder
3.0L 6 Cylinder
4.0L 6 Cylinder

need to know that type Engine

The reason why the service light come on because it is a hard code
not a soft code.

Let me know

Sep 20, 2009 | 2002 Ford Ranger Regular Cab

1 Answer

Check engine light, on and running rough


This misfire is most likely due to bad injectors. Check injector pulse with a NOID light. If pulse is good you need new injectors. However before you do all of this get a compression guage and check compression on all cylinders. The numbers shouldn't be more than 10 psi difference in all cylinders for example if cylinder# 1= 160 psi cyl#2=168 that's good but if cylinder#3= 176 and 4=179 there is a problem with 1&2. bad valves or bad head hasket etc. Good luck and thanks for using FIX YA.

Mar 16, 2009 | 2005 Ford Ranger

2 Answers

#1 Cyclinder


check or change spark plug look at the wire check if spark come from the coil check the compression if evething is good injector defectif hope it FIXYA problem pierre

Jul 01, 2008 | 1998 Ford Expedition

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