2001 Ford Ranger missing under load?
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Joined: Jun 2007
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2001 Ford Ranger missing under load?
I have a 2001 Ford Ranger V6 3.0L with 81,000 miles on it. Recently it has been missing under load (acceleration). I have changed the spark plugs, ran fuel injector cleaner through it, changed the fuel filter, cleaned the MAF, and disconnected the battery to reset the computer. Nothing has worked so far. I don't think it is the spark plug wires because I cannot see the sparks at night after misting the wires. What else could it be? Thanks for you time...
Post Fiend
Joined: Jan 2005
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I'm not a 3.0 expert, but I read where the 3.0 is bad to carbon up after they get some miles on them. The fix was to run a can of seafoam through it. That may not be the problem, but it couldn't hurt and it may help. I know one of the symtoms was loss of power under load, so maybe.
Post Fiend
Joined: Jan 2003
Posts: 9,748
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From: Connecticut
Is the CEL on? Do you know which cylinder is misfiring?
Just because there is no visible sign of arcing doesn't mean the plug wires haven't deteriorated.
You should consider doing a compression test.
Just because there is no visible sign of arcing doesn't mean the plug wires haven't deteriorated.
You should consider doing a compression test.
New User
Joined: Jun 2007
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Same problem
I had the same problem. the insulator on cyl. # 4 was cracked. I replaced the spk. plug ........end of problem.
Just because you installed new plugs......means nothing.....they are sometimes a bitch to install and you may have cracked the porcelan(?) insulator.
BUT.......I GOT A CODE THAT DIRECTED ME TO THIS PROBLEM IN THE FIRST PLACE
Just because you installed new plugs......means nothing.....they are sometimes a bitch to install and you may have cracked the porcelan(?) insulator.
BUT.......I GOT A CODE THAT DIRECTED ME TO THIS PROBLEM IN THE FIRST PLACE
Elder User
Joined: Mar 2005
Posts: 524
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From: Liberty, MO
Check your firing order! Same thing happened to me last year and that was the culprit. There was no code to be thrown, it ran seemingly OK. I reversed #2 and #3 cylinders and the pistons must not have been very far from TDC (top dead center) when they fired and it wasnt noticable untill either heavily accelerating or when holding a constant speed.
Senior User
Joined: Sep 2005
Posts: 143
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From: Newark, Ohio
When it misfires when under accel does it backfire also or just get jerky? Has it showed any codes? Are you loosing any fluids IE coolant or oil? Have you checked you fuel pressure, is it to specs?
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