What Year 4.6 Had The Spark Plug Problems?
2004-2008.
Design News readers have commented about having to lift engines or make holes in the car body to change spark plugs. This article describes a particularly frustrating spark plug issue with the 2004-2008 Ford 4.6-liter, 5.4-liter, and 6.8-liter 3-valve “modular” engines.
What years did Ford have spark plug problems?
How To Avoid A Heart-Stopping Repair Bill For A Maintenance Item. If you are the owner of a Ford truck with a three-valve (3V) modular V-8 or V-10 engine built from 2004 thru 2007, you have either faced the misery of broken spark plugs-or you will.
What years did the F150 have spark plug problems?
Ford has spark plug problems from the 2004 to 2008 series. These are the years when every model commonly had spark plug problems. 5.4 Triton was affected the most by it. Mustang (2005-2008), F150 (2004-2008), and Expedition (2005-2008) have a 5.4L Triton engine with spark plug issues.
Does the 4.6 have spark plug issues?
However, Ford 4.6L V8 engines do have a few known spark plug issues. The 3-valve 4.6 engine in some Mustang GT and F-150 models runs into issues with spark plugs breaking in two. This makes removing the spark plug(s) very challenging when they break.
Which Triton engine has spark plug problems?
Spark plugs keep getting stuck in Ford’s Triton V8 engines. Owners’ blame the problem on Ford’s new plug design featuring a 2-piece shell. A TSB provides special procedures for spark plug removal on these engines.
What year did Ford stop using 2 piece spark plugs?
Ford 4.6L, 5.4L and 6.8L 3 Valve engines have the two piece spark plug; The 2 Valve engine does not use this plug. Fortunately, Ford finally redesigned the spark plug in 2009. Vehicle models from 2009 on do not use the original design.
What year did Ford stop using points ignition?
Despite the lower maintenance requirements and greater overall ignition energy, the Ford transistor ignition was not a popular option. It remained standard on the 427 until 1967, but didn’t even last that long on the Thunderbird option list leaving after 1966.
What spark plugs does Ford recommend?
All the right spark plugs, recommended by Ford Motor Company
Motorcraft® spark plugs are available for a broad range of applications, including domestic and import cars and trucks of all makes and sizes.
How do I stop my Ford spark plugs from blowing out?
How to Prevent Spark Plug Blow Out: Ignition Problems Solved
- A spark plug blow out occurs when the spark plug is fastened too tightly or not tight enough to the engine plug.
- Check the Torque.
- Install the Plugs Correctly.
- Listen for Ticking.
What year did the 3 valve 4.6 come out?
2005
The 3-valve SOHC 4.6 L with variable camshaft timing (VCT) first appeared in the redesigned 2005 Ford Mustang.
What year 4.6 have PI heads?
In 1999, Ford revised their 4.6L Mustang V8 to produce an additional 35 HP for a grand total of 260 HP at the crank. This revised motor, installed in all regular Mustang GT’s from 1999-2004 was dubbed the PI engine, where PI stands for performance improved or power improved.
What is the life expectancy of a Ford 4.6 engine?
It seems that they either seize before they get off of the transport truck (brand new) or run 200,000 miles with regular service. The 4.6L engines I work with are serviced religiously and run well over 150,000 mile in SEVERE service. The car wears out long before the engines do. 35 people found this helpful.
Why do Triton spark plugs break?
Over time, carbon accumulates here and can cause the spark plug tip to stick in the cylinder head. Upon removal, it’s possible for the two-piece plug to break, leaving the lower half of the inner porcelain and the tip in the head.
Why do Tritons shoot spark plugs?
Trion V8 engines keep ejecting their spark plugs. It’s likely due to Ford’s decision to use aluminum cylinder heads that is subject to wearing down and not holding the plugs in place. If the vehicle is still under warranty, Ford will replace the cylinder heads if they’re damaged.
What are the two most common causes of spark plug failure?
Many factors can cause a spark plug to fail; from incorrect heat ranges to improper gapping, to chemical contamination. Yet 90% of spark plug damage claims are due to improper torque. Proper installation torque is critical in the plug’s ability to dissipate heat out of the combustion chamber and into the cylinder head.
What are the symptoms of old spark plugs?
What are the signs your Spark Plugs are failing?
- Engine has a rough idle. If your Spark Plugs are failing your engine will sound rough and jittery when running at idle.
- Trouble starting. Car won’t start and you’re late for work… Flat battery?
- Engine misfiring.
- Engine surging.
- High fuel consumption.
- Lack of acceleration.
Does changing old spark plugs improve performance?
In most cases, you’ll see a noticeable difference in performance after replacing your spark plugs and wires. The engine will run smoother and faster, and the car will have better acceleration. You may also notice an improvement in fuel economy.
How long are factory spark plugs good for?
Most spark plugs have a factory service interval of 100,000 miles, though some may be as much as 120,000 miles. Long-life platinum and iridium spark plugs will typically last up to 100,000 miles or longer provided the engine isn’t using oil or doesn’t spend a lot of time idling.
What year did Ford start putting chips in their keys?
1996
The first Ford transponders were introduced in the 1996 model year. From then until the 2000 model year, transponders were optional equipment on a limited number of models.
When did Ford switch from steel to aluminum?
2015
Ford originally chose aluminum for the 2015 F-150 pickup. The high-strength, military-grade aluminum alloys were used throughout the F-150 body for the first time, improving performance and also saving up to 700 lbs of weight.
What year did Ford start using computer chips?
PTEC microcontrollers were used in Ford vehicles starting in 1994, replacing the Intel designed EEC IV microcontroller chips that Ford had used since back in 1983.
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