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Update: Replaced the plugs. It seems noticeably smoother running and seems as though some power has returned as well. The check engine light has not re-appeared after being reset. I think the real test is starting up on a cold morning. That's when the problem seemed to be the worst. Expecting cold mornings this week here in KS. Crossing fingers.
Update: Replaced the plugs. It seems noticeably smoother running and seems as though some power has returned as well. The check engine light has not re-appeared after being reset. I think the real test is starting up on a cold morning. That's when the problem seemed to be the worst. Expecting cold mornings this week here in KS. Crossing fingers.
A comment. I think the 100K mile sparkplug change interval is pure marketing buncom, 24K variety. All miles are not equal, some people are towing stuff, others not, long trip short trip, whatever.
But consider this: When you run your plugs down to a nub, the ignition system has to run higher voltages to fire them. This stresses the coils, etc. Realtively expensive stuff, and harder to change than a plug. Plus, I really have my doubts about a sparkplug not seizing into the head after the typical 10 years worth of driving to accumulate 100K.
Plus the price of fuel anymore.
On most cars sparkplug access is anything from easy (most inline 4) to not bad (many V-6, most V-8). I'd be changing them around 50K, or at any rate at the first sign of misfiring.
The plugs that came out of it didn't look SO bad. I mean you could visibly see the tips were smaller but they definitely could have been worse based on some I've seen before.
I had my FIL help me change them out on Saturday. OMG it was tough to get to a couple on the driver side and the back one on the passenger side. On the driver side the stearing column gets in the way and on the passenger side the plugs are angled toward the rear of the vehicle which makes the one on the back which is right next to the AC Dryer dang hard to get to. And then to get a torque wrench on all those puppies??? Oh man....I was thinking the whole time...."I wonder what a mechanic would charge". LOL
I had my FIL help me change them out on Saturday. OMG it was tough to get to a couple on the driver side and the back one on the passenger side. On the driver side the stearing column gets in the way and on the passenger side the plugs are angled toward the rear of the vehicle which makes the one on the back which is right next to the AC Dryer dang hard to get to. And then to get a torque wrench on all those puppies??? Oh man....I was thinking the whole time...."I wonder what a mechanic would charge". LOL
The factory plugs are installed before the engine is dropped in - it's a miracle any of us have a chance!
I don't have answers to the above problems, but I am having a problem with my 2002 Lincoln LS and 2003 Aviatior. Both have giving the same trouble coils have been changed on both until a week later the hesitation starts again at 40 60 mi/hr. Tuned up the Aviator again week later hesitation starts again. My mechanic even changed the fuel filter in the Aviator. What has Lincoln done only build these vehicles to last 6 years and then put thousands of dollars into them? Help please.
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