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Re: 99 Trooper spark plug - Tune up
Are you talking about the screws that hold the coil packs on?
You really should have them all on to ensure a good connection to the plug.
You can get a mis-fire code if the connection isn't as good as it should be.
Also, don't get the coil packs mixed up. One is slightly different from the other 5.
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84 4Runner - ARBed 5.29s F&R, 4.7 & 2.28 t-cases, Chevys, AP x-over, BudBuilt x-member, 2" drv trn lift, 36" TSLs, 30 spline Longs
80 something p/u - Buick 231 V6/TH-350 trans, Holley 4 bbl, Weiand intake, dual batts, dual tanks ...
89 4Runner - stock
2000 Isuzu Trooper + 2010 Sonata
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