Tune up
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Senior User
Joined: Nov 2003
Posts: 404
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From: Indiana
Tune up
I just got a 99 Ranger with 55,000 miles on it.It has platnium plugs in it from the factory.I was wondering if I should change them or just leave them alone.The motor is the 2.5L with 2 plug's per cylinder.
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Joined: Jun 2004
Posts: 9
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From: Florida
I have a 98 3.0 I just changed mine at 42,000. I don't know about the 2.5 but the 3.0 was pain to change, you need a special tool to pull the wires off. The plugs are supposed to last like 100,000. I did so because I was getting a little knocking and had to switch to 89. The old plugs gaps were almost double what they should have been.
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