4.6L (1996-2004 Modular) Mustang Technical discussions on 1996-2004 4.6 Liter Modular Motors (2V and 4V) within.

Coil pack

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Old 10-16-2013, 11:50 AM
  #1  
dolphinsrok
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Default Coil pack

Hi, new to this forum, read a bunch of really good info so far. Have a 2003 gt manual convertible (70k miles) and im doing a tuneup frst time. Never had a car with coil plug boot deals, always had camaros with plugs and wires. So the question is, if I'm doing a tuneup is it recommended that I also change the coil pack or just the plug on boot?
This is what I purchased so far mostly from rockauto.com

- motorcraft plugs
- motorcraft plug on boot (without the pricey coil pack)
- motorcraft fuel filter
- motorcraft oil filter
- also planing on changing the gear oil and manual transmission fluid
- lastly picked up a CAI from american muscle for about 79 bux

I had the car about a year and all I have been changing is just the oil so this is my first big tuneup. I ran over a big puddle a few months back and it was hesitating for a few days until I went on the highway and opened it up really good. About 90% f the hesitation went away but I still have a little. I'm hoping everything I change above will eliminate all the hesitation. By hesitation it hesitates if in a high gear at low speed which it didn;t do before i went in the puddle.... note to self stay away from puddles in the future...
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Old 10-16-2013, 12:27 PM
  #2  
Stevo86
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Don't change the coils themselves until they break. The only ones worth anything are the factory coils and they are about $100+ a piece.
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Old 10-16-2013, 12:29 PM
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CalBoy101
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Its good that your are replacing the boots and the Motorcraft ones are the way to go. The coil packs should be ok. When replacing the boots put a dab of dialectric grease on the contacts on each end.

There was a thread on changing spark plugs about a month ago that you should read before doing the plug swap, the spark plug threads are unfortunately a little touchy on these engines.

I'd also clean the MAF on the car, that's a quick job, just need a can of MAF spray cleaner.
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Old 10-16-2013, 02:26 PM
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dolphinsrok
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Thanks everyone!
I'll take all that advice and post once I complete the tuneup which will be by this monday or next monday at the latest
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Old 10-16-2013, 02:59 PM
  #5  
uberstang1
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Btw welcome to the forums, feel free to post some pics and progress of the car
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