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V6 (1994-2004) Mustangs Technical discussions on the 3.8L and 3.9L V6 torque monsters
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Old 12-01-2012, 08:53 PM   #11
jthorn9
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YOU NEED TO REPLACE THE GASKETS WHEN YOU PULL THE INTAKE!!!!!!!! Now the problem is being made worse by a vacuum and water jacket failure with the gasket.
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13 Mustang GT CS - 380 RWHP 370 TQ
13 Mustang V6 PP - 270 RWHP 260 TQ

95 Mustang SVO - 400 RWHP 400 TQ sold
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Old 12-02-2012, 08:18 AM   #12
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Working on that right now hopefully have it done in couple hours
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Old 12-03-2012, 12:43 AM   #13
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changed the gasket no more water in oil, 3rd bank on coil sometimes has no fire from it and when it does t doesnt change the way motor runs when u pull wires, so im guessing coil is bad and what would make it not change motor when pulled off????
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Old 12-03-2012, 04:58 PM   #14
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Yep, that's the symptoms of either a bad coil, or a random stroke of all bad wires.
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13 Mustang GT CS - 380 RWHP 370 TQ
13 Mustang V6 PP - 270 RWHP 260 TQ

95 Mustang SVO - 400 RWHP 400 TQ sold
08 Mustang GT - 285 RWHP 305 TQ sold
99 Mustang Cobra - 280 RWHP 290 TQ sold
11 Mustang V6 - 270 RWHP 260 TQ sold
97 Mustang GT - 190 RWHP 250 TQ sold
00 Mustang V6 - 145 RWHP 184 TQ sold
98 Mustang V6 - 125 RWHP 210 TQ sold
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Old 12-04-2012, 08:00 AM   #15
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If you replaced the coil what brand did you go with? Motorcraft coils are the only ones that work properly. Also with the plugs, if you put in platinums, that can be a problem too as platinums suck. Just get some NGK TR-5's. If you have a broken spark plug, then you probably have either piston or valve damage, or both. I'd recommend pulling the head/s just to make sure. It sucks to have to do it, and it'd not cheap for all the bolts and gaskets, but at this point it's the only way to be sure. I've seen heads eaten to **** from a spark plug breaking.

I highly doubt it's a timing chain issue, merely because those of us who have put our cars through the most abuse have yet to have an issue. If it breaks it breaks, and the car won't run.
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Old 12-05-2012, 05:55 PM   #16
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i know the harmonic balancer needs changedd so thats the next thing im doing sometime soon
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Old 12-05-2012, 08:35 PM   #17
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Um, do that asap. That will destroy your engine. The whole point is to BALANCE out everything. It's worse than driving with a tire out of balance.
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Old 12-05-2012, 08:35 PM
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