Truck skips bad
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Truck skips bad
Hey guys!
How's it hanging? It has been a while since I posted on here. So here goes.
My truck skips bad when I step on it. It is real bad when you step on it right away, but it doesn't do it as bad when you gradually get on it.
I installed the SplitFire spark plugs in it a while ago, but the truck was still skipping even with the old plugs.
What can I do to get rid of it? It is REAL annoying!
Do I have to install new spark plug wires to get rid of it or is there something else that I need to do?
Thanks!
How's it hanging? It has been a while since I posted on here. So here goes.
My truck skips bad when I step on it. It is real bad when you step on it right away, but it doesn't do it as bad when you gradually get on it.
I installed the SplitFire spark plugs in it a while ago, but the truck was still skipping even with the old plugs.
What can I do to get rid of it? It is REAL annoying!
Do I have to install new spark plug wires to get rid of it or is there something else that I need to do?
Thanks!
Last edited by BlueOvalfan85; Aug 23, 2005 at 10:18 PM. Reason: wanted to change some things
Postmaster
Joined: Aug 2001
Posts: 4,532
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From: Trussville, Alabama
I'd start with plug wires, especially if you are at 60,000 or higher and have never changed them.
Start with the basics first. Plug and wires are known to cause the problem you mentioned.
I have no experience with the Split Fire plugs so I can't say if they work well in the 4.2.
I have had good luck with Motorcraft OEM plugs and Autolite or Champion copper core plugs.
Start with the basics first. Plug and wires are known to cause the problem you mentioned.
I have no experience with the Split Fire plugs so I can't say if they work well in the 4.2.
I have had good luck with Motorcraft OEM plugs and Autolite or Champion copper core plugs.
Laughing Gas
Joined: Aug 2004
Posts: 782
Likes: 1
like what brianA said
motorcraft plugs, autolite, champion.....
i've heard good things about denso iridium.
I've heard very bad things about bosch, though.
typically, you should stick with OEM for ignition products on your ford.
motorcraft plugs, autolite, champion.....
i've heard good things about denso iridium.
I've heard very bad things about bosch, though.
typically, you should stick with OEM for ignition products on your ford.
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I got about 83,660 miles on the truck.
I don't think it is the o2 sensor because I haven't seen the check engine light on yet.
The SplitFire plugs aren't bad and my 4.2 seems to like them fine. But it runs real rough every once in a while. If it does it again, I'll have to take them out and put Motorcraft back in it. I just wanted to experiment with SplitFire and see how the 4.2 liked 'em.
What color should I look for on the plugs when I take them out? If I recall right, it was light tan? White would mean it is running too lean and black means it's running too rich. Is that right?
Thanks for helpin' out. Now I know what I have to do. If it wasn't for you guys, I would be having fits and get ripped off by the dealer.
Thanks again!
I don't think it is the o2 sensor because I haven't seen the check engine light on yet.
The SplitFire plugs aren't bad and my 4.2 seems to like them fine. But it runs real rough every once in a while. If it does it again, I'll have to take them out and put Motorcraft back in it. I just wanted to experiment with SplitFire and see how the 4.2 liked 'em.
What color should I look for on the plugs when I take them out? If I recall right, it was light tan? White would mean it is running too lean and black means it's running too rich. Is that right?
Thanks for helpin' out. Now I know what I have to do. If it wasn't for you guys, I would be having fits and get ripped off by the dealer.
Thanks again!
Cargo Master
Joined: Aug 2002
Posts: 2,013
Likes: 6
From: Cajun Country
First of all,ide yank them POS S***Fires and throw 'em away! Go back with factory Motorcraft plugs.Next,install some good plug wires.I dislike factory Motorcraft due to too much resistance in the wires. I am currently using Autolite Pro Series wires.Then,give the TB a good cleaning using a TB cleaner only! Clean your MAF sensor too.Finish off the job by cleaning the IAC.Remember to disconnect the negative battery lead before doing any work!
BTW,the O2 sensors will not throw a code until they "totally" fail.They do get "lazy" and will not be as effective with that many miles you have stated,on them.Another part to replace is the PCV valve.
BTW,the O2 sensors will not throw a code until they "totally" fail.They do get "lazy" and will not be as effective with that many miles you have stated,on them.Another part to replace is the PCV valve.
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BlueOvalFitter, why do Motorcraft wires have too much resistance in 'em?
Where is the MAF sensor at, so I can locate it and clean it out? The IAC is at the back of the intake manifold, I think. The PCV valve is on the passenger side of the valve cover. I know because I found it there.
I'll probably have to get new o2 sensors before the old ones fail.
I'll probably get started on the truck this weekend.
Thanks
Where is the MAF sensor at, so I can locate it and clean it out? The IAC is at the back of the intake manifold, I think. The PCV valve is on the passenger side of the valve cover. I know because I found it there.
I'll probably have to get new o2 sensors before the old ones fail.
I'll probably get started on the truck this weekend.
Thanks
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Postmaster
Joined: Aug 2001
Posts: 4,532
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From: Trussville, Alabama
To find the MAF, look into the intake plenum after removing the air filter. It's located just after the air filter.
The MAF sensor assembly has a plug with 5 wires (I think it's 5) hooked to it.
The MAF sensor itsself, is a wire held in a little snorkle that sticks out into the air intake stream.
That wire is what gets cleaned. Break the wire and truck, she no go-go.
The MAF sensor assembly has a plug with 5 wires (I think it's 5) hooked to it.
The MAF sensor itsself, is a wire held in a little snorkle that sticks out into the air intake stream.
That wire is what gets cleaned. Break the wire and truck, she no go-go.
Laughing Gas
Joined: Aug 2004
Posts: 782
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Originally Posted by BlueOvalFitter
BTW,the O2 sensors will not throw a code until they "totally" fail.They do get "lazy" and will not be as effective with that many miles you have stated,on them.
i was sitting there at idle and said...."hmmm....ohhhh yeeeahhhh...."
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