spark plug life - Taurus Car Club of America : Ford Taurus Forum
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post #1 of 12 (permalink) Old 07-07-2019, 10:08 PM Thread Starter
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spark plug life

My 2011 Taurus V6 has 143,000 on the spark plugs-- I drive easy-can it go further?.

I am getting 35.5 MPG at 68 MPH. Great car
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post #2 of 12 (permalink) Old 07-07-2019, 10:24 PM
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80-100k mi. recommended. I'd be afraid they'll be a "B" to remove, lol!
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post #3 of 12 (permalink) Old 07-08-2019, 05:34 AM
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I agree with Sheila, hopefully they won't be seized.
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post #4 of 12 (permalink) Old 07-08-2019, 08:04 PM
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Had my car in for service a year ago (replace the infamous water pump). I asked that as long as they had everything torn apart, how much they'd want to change the spark plugs. $350!

I remember when changing plugs was a ten minute job. It wasn't that long ago.
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post #5 of 12 (permalink) Old 07-09-2019, 10:17 AM
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Again , there is lots of info on Spark Plug change intervals for the 3.5 - 3.7 L V6 engines on Ford/Mazda/Lincoln equipped vehicles. An actual Ford tech on YT , recommends 60K mile SP changes, & he has very detailed instructions on YT of a correct , how to do proceedure yourself.
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post #6 of 12 (permalink) Old 07-10-2019, 07:36 PM
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Quote:
Originally Posted by rpar0808 View Post
My 2011 Taurus V6 has 143,000 on the spark plugs-- I drive easy-can it go further?.

I am getting 35.5 MPG at 68 MPH. Great car

Was in the upull the other day getting parts for the 98 "black turd".
On a whim, i found a random 3.0 and pulled what looked like the original
plug. There was almost NO center electrode left! yet it lived its life until
it was junked. probabaly did not run top notch, but it made it to the bone yard
like that.


bob

Bob Urz 1989 Vulcan wagon (wife crashed) 1990 Vulcan sedan (sold running) 1993 Vulcan sedan (wife crashed) 1993 Vulcan wagon (beat up like Battlestar Galactica, drove to junkyard on a sad day) 1997 Vulcan sedan (down with multiple coolant leaks), 1998 Vulcan sedan (rescued from being junked three time with broken brake lines and bad rack, hydrolocked engine replaced ) down for now
Note: wives and daughters are dangerous to your Taurus health!

If Spock drove a Taurus it would be a Vulcan
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post #7 of 12 (permalink) Old 07-10-2019, 08:31 PM
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Quote:
Originally Posted by soundu View Post
Was in the upull the other day getting parts for the 98 "black turd".
On a whim, i found a random 3.0 and pulled what looked like the original
plug. There was almost NO center electrode left! yet it lived its life until
it was junked. probabaly did not run top notch, but it made it to the bone yard
like that.


bob
Not mine but pic shows it can go for a time but bad things happen. Too large gap hurts the coil/coilpack. 100K is about the end of the platinum. After that the gap opens up more quickly.


Plugs cheap compared to the consequences of poor maint.


-chart-
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post #8 of 12 (permalink) Old 07-10-2019, 09:26 PM
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I'd change those out as soon as practical. The misfires are not too far away.

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post #9 of 12 (permalink) Old 07-13-2019, 08:08 AM
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I just had mine changed in my 2008 Bull yesterday at 134,700 miles. I have driven it 31,000 mostly highway miles in the past year.

My car was misfiring but not triggering any codes at all. It would do it intermittently at around 45-65 mph if I put a slight pressure on the gas without downshifting. I decided to replace the boots and plugs, had my trusty family mechanic do it, cost me $296 total.

I was thinking my car was having tranny issues, but right now it is running smoother than it has ever been and any appearance of slipping or hesitation has all but dissipated.

I would highly recommend doing so.
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post #10 of 12 (permalink) Old 07-13-2019, 09:03 AM
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My 2005 DOHC had about 115K miles on it when I bought it with a slight misfire. I pulled the plugs and the gap, which should have been 44 thou, ranged from 65 to 80!
This had caused the coils to overload and they all had hairline cracks in the 'resin' that seals the top. The wires going into the connectors had got hot enough to partially melt the insulation and they were welded together. The PCM was sent for repair as one of the driver IGBT's was giving problems due to the overload.
Because the previous owner had not changed or checked the plugs I ended up replacing: 6 plugs, 6 coils, 6 coil connectors and had the PCM repaired. Overall a very expensive fix.

Change the plugs, really cheap insurance.
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