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SportTrac Discussion
Engine & Drivetrain
2003 Idle - missing - I give up
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<blockquote data-quote="EddieS&#039;04" data-source="post: 909949" data-attributes="member: 61136"><p>If you have the stock coil. Put it back on and see what happens. We have had a rash of members with bad SD coils. Unless it was doing it before with stock coil.</p><p></p><p></p><p></p><p>Also if it wasnt doing it before the new plugs. You may have cracked a new one on install. Easy to do, especialy pasenger side. Might be a bad wire. It happens even with new ones. If you have a vom. Run a resitance test on the plug wires. If they are oem type wires. The resitance will be aprox 1500 ohms per foot. Custom performance wires, aprox 500 ohms per foot.</p><p></p><p></p><p></p><p>As others said. Some members had bad success with custom plugs. The 4L sohc runs as good as it gets with motor craft or autolite oem.</p><p></p><p></p><p></p><p>Also check all conections from the harness to all critical sensors. A little loose or corrosion can cause trouble and not set off code. Clean the maf with crc maf cleaner from AZ.</p></blockquote><p></p>
[QUOTE="EddieS'04, post: 909949, member: 61136"] If you have the stock coil. Put it back on and see what happens. We have had a rash of members with bad SD coils. Unless it was doing it before with stock coil. Also if it wasnt doing it before the new plugs. You may have cracked a new one on install. Easy to do, especialy pasenger side. Might be a bad wire. It happens even with new ones. If you have a vom. Run a resitance test on the plug wires. If they are oem type wires. The resitance will be aprox 1500 ohms per foot. Custom performance wires, aprox 500 ohms per foot. As others said. Some members had bad success with custom plugs. The 4L sohc runs as good as it gets with motor craft or autolite oem. Also check all conections from the harness to all critical sensors. A little loose or corrosion can cause trouble and not set off code. Clean the maf with crc maf cleaner from AZ. [/QUOTE]
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SportTrac Discussion
Engine & Drivetrain
2003 Idle - missing - I give up
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