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| 1997 to 2003 F-150 4.2L, 4.6L, and 5.4L equipped F-150s. |
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#1
Mon, March 15th, 2010, 08:47 AM
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Tuning with high miles
So I just bought a 01 4x4 lariat with 209k miles. The truck doesnt skip a beat and feels more like 50k miles. Will I be ok putting a custom tune on it? I dont need anything real aggressive just wont something to make it a good daily driver on a 87 octane tune. Coming from a tunned 06 F150 I dont think its possible for me to drive a stock fiddy ever again!
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#2
Mon, March 15th, 2010, 10:33 AM
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I would do a compression check on the engine and make sure you are within specs on all cylinders... If all is good and the rest of the vehicle is mechanically sound, you should have no problem running tunes on it
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DJ Phoenix (my modded) Hi-1200/240Tow/75FS/80DD/100/140SS +Minotaur ASE Master Auto Technician  2001 Ford Excursion 7.3 4x4 Projects. 1970's Hustler and Max II Amphibious ATV's
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#4
Tue, March 16th, 2010, 12:18 AM
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Personally as long as the truck is in sound mechanical shape and routine maintenance has been performed then a tuner won't be an issue.
To do a compression test at home you need to go out and buy a tester gauge. Remove spark(s) plug and put adapter in the hole and crank the motor. Another GOOD investment is a Haines or Chilton repair/service book what can be purchased/ordered at an auto parts store or online. Peace! 
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SENIOR MODERATOR--PTLA God doesn't have a Facebook but he's my friend. God doesn't have a twitter, but I follow him.
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#5
Tue, March 16th, 2010, 05:09 AM
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Might be cheaper to take it to a dealer, or someone who has an IDS to do a Relative Compression Test. They can preform this test without even opening the hood, and it is very accurate.
I am with 88 on this, if the vehicle has been well maintained I would not be the least bit worried about adding custom tunes. Just a thought.
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#6
Tue, March 16th, 2010, 08:49 AM
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Im afraid to have a compression check done
 but seriously you would never know it had the high miles driving it. It was extremely well taken care of. i dont plan on beating up on it just want it to be a little more responsive and shift a tad firmer like my previous 06 did
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