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post #1 of 2 (permalink) Old 11-23-2010, 11:58 AM Thread Starter
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Bad Plugs

So we replaced Ranger 2.3L spark plugs a couple of months ago. Truck now runs very rough, customer says he "may" have gotten it hot, but only drove a block. Boss said pull the head, he suspected head gasket (coolant looked like mud). I got the head off and check out these two plugs:



These are brand new platinums. Could a little overheating melt them that much that fast or you think something else could be wrong?

~Rick

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post #2 of 2 (permalink) Old 11-23-2010, 12:03 PM
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I melted a plug on my number 3 cylinder just from over heating my supercharger. What happened was the iat went bad in the manifold and the air temp was reading like 110 degrees at most. So it never pulled timing and it was predetonating. Idk if thats a possiblity for you but thats the only time I ever melted a plug.

04 PI swap,SVO Supercharger 8-9 psi,Alcohol injection,39lbs Cobra injectors,XCal2-Walbro 255 LPH fuel pump,4.10 T-Lok,2003 4R70W built to withstand by RobertP,450hp JMOD,3800 circleD stall,trucool 4739 Trans Cooler,Dynotech 3.5 Driveshaft,70mm T/B,SCP Cold Air Intake,90mm LMAF,JBA headers,Magnaflow Midmount,No cats with 3inch piping,Vogtland 1.6inch drop,Cobra R's and xenon body kit.

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