Spark Plug Install 2001 Mustang GT - Ford Mustang Forum
 
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post #1 of 10 (permalink) Old 09-08-2009 Thread Starter
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Spark Plug Install 2001 Mustang GT

hi guys. i bought NGK platinum alloy spark plugs for my 2001 GT. i was just wondering if these are a good choice and any real life tips for installing them.like do i have to remove the fuel rails? i hope not

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2001 Mustang GT.Tropic Green ( SU ftw ), AM Cold Air Intake.75mm Throttlebody.accufab Plenum. Pypes Off road X pipe(ceramic coated to headers). J&M Lower control arms. 4.10 Gears. 93 octane sniper dyno tuned. 245 RWHP 287 RWTQ
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post #2 of 10 (permalink) Old 09-08-2009
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Nope, just pull the cops one at a time, remove the spark plug, make sure the new one is gapped, put a little anti sieze on the new plug and reinstall, then torque, put cop back on.

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post #3 of 10 (permalink) Old 09-08-2009
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Its an easy job, just like described above, no need to pull the fuel rail or anything like that. Personally, platinum plugs are junk for performance, regular copper ones work better, they just don't last as long. I like motorcraft sp505.

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post #4 of 10 (permalink) Old 09-08-2009 Thread Starter
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well i doubt itll be that much of a difference right?. i dont plan on taking it to the drag or anything.

2001 Mustang GT.Tropic Green ( SU ftw ), AM Cold Air Intake.75mm Throttlebody.accufab Plenum. Pypes Off road X pipe(ceramic coated to headers). J&M Lower control arms. 4.10 Gears. 93 octane sniper dyno tuned. 245 RWHP 287 RWTQ
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post #5 of 10 (permalink) Old 09-09-2009
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u will never notice the difference. the gt's come factory with platinum plugs, so ur car prob has them in there unless they have been changed before. i ran the factory motorcraft replacements when i was naturally aspirated.
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post #6 of 10 (permalink) Old 09-09-2009
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The NGKs are OK. I agree with 366 about the preference, though...

DO be carefult torquing them down, remember its an aluminum head with a narrow band of threads! Hand tighten, or where hard to get to, use a piece of hose slid over the top of the plug and turn it.

Crossthreading and overtightening is a real PITA.

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post #7 of 10 (permalink) Old 09-10-2009
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If you still have the receipt take those Platiunum NGK's back and swap em for their V power Copper Core!

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post #8 of 10 (permalink) Old 09-10-2009 Thread Starter
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my car just crossed the 100 k mark and i bought it at 94k so i m assuming the reason its idling rough. bad mileage etc is cuz the spark plugs are going bad. i checked all the other common suspects

2001 Mustang GT.Tropic Green ( SU ftw ), AM Cold Air Intake.75mm Throttlebody.accufab Plenum. Pypes Off road X pipe(ceramic coated to headers). J&M Lower control arms. 4.10 Gears. 93 octane sniper dyno tuned. 245 RWHP 287 RWTQ
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post #9 of 10 (permalink) Old 09-10-2009
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Could be you need plugs.

Common suspects: IAC, fuel filter, fuel pump, COPs or coils, air filter, dirty maf, exhaust leak, O2 sensor(s), EGR, evap system, etc, etc.

Are you getting a CEL? Did you check for diagnostic trouble codes?

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post #10 of 10 (permalink) Old 09-11-2009 Thread Starter
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no thrown code. the idle isnt too bad just 1000k at startup and levels out after a few minutes of driving. + crap Gas mileage. spark plugs are my last resort lol

2001 Mustang GT.Tropic Green ( SU ftw ), AM Cold Air Intake.75mm Throttlebody.accufab Plenum. Pypes Off road X pipe(ceramic coated to headers). J&M Lower control arms. 4.10 Gears. 93 octane sniper dyno tuned. 245 RWHP 287 RWTQ
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