Put new spark plugs in. WHEW. Much better though. - Page 2 - Ranger-Forums - The Ultimate Ford Ranger Resource

4.0L OHV & SOHC V6 Tech General discussion of 4.0L OHV and SOHC V6 Ford Ranger engines.

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Old 06-25-2009
Join Date: Jun 2009
Location: Frederick, CO
Posts: 1
Originally Posted by Fx4wannabe01 View Post
Autolite is still 5144....right?? Cuz, I've swapped my plugs twice now, infact the2nd time was about an hour ago......am I running the wrong plug??
I will be changing mine with autolites this weekend. They are 5144, so if wrong, we will both be running the wrong ones!
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Old 07-01-2009
Join Date: May 2005
Location: Two Rivers, WI
Posts: 26
Put in the 7243 and new Motorcraft wire.....now truck runs like crap!!! It idles and runs like a bucking bronco. Double check the connections, made sure I didn't inadvertently knock anything loose. As far as I can see, I didn't. Anyone has a diagram of the arrangement of the ignition module? Pretty sure I connected them correctly, but want to double check. The pistons are arranged 1-3 from front of passenger side, and 4-6 from front of driver side, correct? Very frustrating, can't drive my truck, good thing I have my motorcycle to get around. Thank you all.

Oh yeah, I did gapped them correctly, checked it twice at least.

Okay, I am an idiot. Find out what's wrong, don't laugh.......got my 1st and 3rd cylinder wires mixed up!!!!! I swear, for the last two days, I have checked and checked because that's what I thought I did wrong. No, I had no malted beverages during that time :-) Checked again today, sure enough, 1st and 3rd wire got switched, doh!!! Will let you know how the NGK work out.

Last edited by Topper_Harlee; 07-02-2009 at 01:56 PM.
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