Engine Missing
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Engine Missing
Hi all,
I'm new to this forum and have a little issue with my 2003 FX4 LVLII.
I had my truck at the shop yesterday and they said that it has a missfire, this doesn't occur enough to throw a code or trip the check engine light.
This problem only happens in cold weather.
I have ordered a new MAF sensor from Ford as the sparkplugs and wires are nearly new and were installed at the dealership.
Am I on the right track or should I throw a new set of plugs in it too?
Thanks
Len
I'm new to this forum and have a little issue with my 2003 FX4 LVLII.
I had my truck at the shop yesterday and they said that it has a missfire, this doesn't occur enough to throw a code or trip the check engine light.
This problem only happens in cold weather.
I have ordered a new MAF sensor from Ford as the sparkplugs and wires are nearly new and were installed at the dealership.
Am I on the right track or should I throw a new set of plugs in it too?
Thanks
Len
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Joined: Mar 2005
Posts: 1,533
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From: Dexter, MI
Welcome to FTE. This is a great site for all things Ranger.
How many miles are on the truck? Are all routine maintanence things up to date? Has anything been done to the truck that may have affected the way it operates? What brand of plugs and wires were installed?
What led you to decide to replace the MAF?
How many miles are on the truck? Are all routine maintanence things up to date? Has anything been done to the truck that may have affected the way it operates? What brand of plugs and wires were installed?
What led you to decide to replace the MAF?
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The truck has 170,000km on it. All maintenance is up to date, running all synthetic oils and lubes. Plugs and wires are Motorcraft and are one year old. I haven't chipped it yet but that is on my mind...
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From: Smithfield N.C.
Let me guess, intermitant misfire on cyl 3 and misfire occured within the first 1000 rpms . If so put a new ignition coil on it. But typically it will trip the check engine light. Good luck with the problem.
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Thanks for the help with the problem, this is by far the best forum I've been on!
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So I replaced the coil and checked the plug wires at the plugs. It still misses but less often. Thinking it might be the plug wire from hell that I can't get my hand anywhere near! Any ideas on how to get at this bloody thing?
Still debating if I'm going to replace the MAF sensor on Tuesday when it arrives...any ideas?
Still debating if I'm going to replace the MAF sensor on Tuesday when it arrives...any ideas?
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From: Dexter, MI
Do you have an old plug wire that you could swap for the present wire for cyl. 3? Am I correct that you have the 4.0 rather than the 3.0 engine?
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Ok, so I haven't had a chance to get at that wire yet, but the truck didn't miss at all today and I drove it 45km.
I have noticed that the fuel mileage is better since replacing the coil.
I'm going to throw the new MAF in it tomorrow after work and change out all the wires.
I have noticed that the fuel mileage is better since replacing the coil.
I'm going to throw the new MAF in it tomorrow after work and change out all the wires.
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Ok, so I had new plug wires installed today and it's running much better. The shop I went to ran their scanner on it for over an hour and never saw a miss. Apparently the old plug wires (installed at the Ford Dealer) weren't the correct ones and were not installed in the looms which I was told can cause an issue.
Hopefully all will be well and I won't replace the MAF for now.
Thanks to everyone for your help and input!
Hopefully all will be well and I won't replace the MAF for now.
Thanks to everyone for your help and input!
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