Ford ranger 3.0 liter bucks at cruzing speeds reed coil pack and tps. same problem now cold idle is too high.

Does it do the bucking when you use the cruise control? If so, it's probably a bad TPS (Throttle Position Sensor)!

swap coil pack to another cylinder, if problem migrates to that cylinder, replace coil pack.

Part 3 -How to Test the Ignition Module and Crank Sensor ...

easyautodiagnostics.com > Ford > 2.3L

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.

How to Diagnose a Misfiring Cylinder (2.3L Ford Ranger ...

troubleshootmyvehicle.com > Ford > 2.3L

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, ...

2002 ranger misfire rough idle - Discussion on Topix

www.topix.com > Ford Ranger

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 ...

Extremely stumped! I need the best and brightest 1994 Ford ...

answers.edmunds.com > Edmunds Answers

had the same problem with my 2003 expedition replaced the coil packs and now it purrs like a kitten

im sure you also have a check engine light flashing.its a misfire in one or mor cylinders,the cause is very common the coil on top of spark plug goes bad. but you have to find out which coil.if its running rough at idle strat with #1 cyl and pull injector connector,if there is a change in idle speed then this is the or one of the bad cylinders.if idle drops then coil is good.then just reolace bad coils.

Both packs are 1-3-4-2, although the exhaust side does so at a fraction less than the intake side.

tune up replace plugs and wires if did and still shudders check coil packs

Hi check all the fuse. fi the fuse are ok . remove the coil pack and reverce if the cly missifire change replace the coil if not chage replace the electronic comtrol module ok.

crank sensor or cam sensor

1991-1994 2.9L and 3.0L Engines Firing Order 1-4-2-5-3-6 1995 And Later 3.0L V-6 With DIS Ignition System Firing Order 1-4-2-5-3-6
4.0L Engines Firing Order: 1-4-2-5-3-6 DIS Ignition System