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Car Forum / Ford / Ford Cars / January 20095.4 Spark Plugs
My 05 5.4 p/u needed new plugs and one coil. The engine has to be brought up to temp and let cool down to some temp. The tech didn't tell me what it was. Then they break the plugs just loose and spray a penetrating lubricant down the threads and let it sit for a few minutes. If a plug breaks they have to go through a difficult extraction process. These plugs are long with a loop ground instead of a half loop. I would have expected a surface gap plug, with all the juice, the coils put out. They definitely are not a performance plug. The noise from the ignition just about rules out a CB. These things are 10.00 a piece from the dealer. Almost 400.00 to change the plugs and 1 coil and a fuel filter. Seems a lot ridiculous. We use to do a complete tune up for 20.00 or so. Of course high hp engines and point ignitions weren't real great. And your question is . . .? . . . what car should I buy next??? ====================== >My 05 5.4 p/u needed new plugs and one coil. >The engine has to be brought up to temp and let cool down to some temp. [quoted text clipped - 10 lines] >We use to do a complete tune up for 20.00 or so. Of course high hp >engines and point ignitions weren't real great. > My 05 5.4 p/u needed new plugs and one coil. How many miles on an 05? The plugs are good for at least 100k miles. I really do not care for the plug design used with the three valve engines. If I owned one, I'd either paln on changing the plugs every 35k miles or never. Never is actually a possibility. I had two different 2 valve 5.4l. I ran both to 100k miles before changing the plugs - they hardly showed any wear at all. Ed > The engine has to be brought up to temp and let cool down to some > temp. The tech didn't tell me what it was. [quoted text clipped - 10 lines] > We use to do a complete tune up for 20.00 or so. Of course high hp > engines and point ignitions weren't real great. I change my own plugs, and I've had to change out a coil on three different occasions. I won't give someone $400.00 to work on my truck. FYI - Get an Edge Evolution Programmer for that truck. I'm getting more power and more then 23 miles per gallon from my 5.4 Litre engine. And it is Plug'N'Play...... > My 05 5.4 p/u needed new plugs and one coil. > The engine has to be brought up to temp and let cool down to some [quoted text clipped - 10 lines] > We use to do a complete tune up for 20.00 or so. Of course high hp > engines and point ignitions weren't real great. > My 05 5.4 p/u needed new plugs and one coil. Probably needs more than one coil. > The engine has to be brought up to temp and let cool down to some temp. Yup. > The tech didn't tell me what it was. The procedure is covered in a TSB. > Then they break the plugs just loose and spray a penetrating lubricant > down the threads and let it sit for a few minutes. Yup. > If a plug breaks they > have to go through a difficult extraction process. Requiring a special extraction tool. > These plugs are long with a loop ground instead of a half loop. > I would have expected a surface gap plug, with all the juice, the coils > put out. All -what- juice the coils put out? > They definitely are not a performance plug. What is a "performance plug?" > The noise from the > ignition just about rules out a CB. > These things are 10.00 a piece from the dealer. At $10.00 each, you're getting a break. > Almost 400.00 to change > the plugs and 1 coil and a fuel filter. Seems a lot ridiculous. Sounds about right. > We use to do a complete tune up for 20.00 or so. Of course high hp > engines and point ignitions weren't real great. Before the extraction tool was developed, the cab had to come off so that the cylinder head with the stuck spark plug could be removed. Labor charges of a couple-three thousand dollars wasn't unheard of. >> My 05 5.4 p/u needed new plugs and one coil. > [quoted text clipped - 45 lines] > that the cylinder head with the stuck spark plug could be removed. > Labor charges of a couple-three thousand dollars wasn't unheard of. I had heard that so that is the reason I didn't want to tackle it. Too old to pull a truck apart. I may replace the other coils as a precaution. Shouldn't bee too difficult. Wonder what the things cost? The truck has about 95,000 miles. It doesn't like ethanol neither do the filters. The Edge or some other tuner sounds good but 400.00 for maybe 10 hp? It might get rid of the 3.3 mph p s max acceperation electronic throttle though. I wouldn't want to hot rod the thing. The rear end has been rebuilt three times under warranty. Not going to buy another pc if I can find a new old diesel. > I had heard that so that is the reason I didn't want to tackle it. Too > old to pull a truck apart. I may replace the other coils as a [quoted text clipped - 5 lines] > been rebuilt three times under warranty. Not going to buy another pc if > I can find a new old diesel. Replace the spark plugs with a Champion plug. There's less chance that it will break. Follow the Ford replacement recommendations to the letter. |
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