4.0 OHV eating spark plugs?
#1
4.0 OHV eating spark plugs?
Hey everyone,
Got a question. What would cause my engine to go through spark plugs like candy? Its a 4.0L OHV with 110k miles on it, and I don't beat the truck, but it seems like every 4 months the plug in cylinder 4 begins to misfire, and when I take the plug out, I find the insulator cracked, broken, or completely gone. I've changed the plugs out 4 times in the past year, it's getting annoying and worrisome. Could there be something in cylinder 4, or what else could be wrong?
Got a question. What would cause my engine to go through spark plugs like candy? Its a 4.0L OHV with 110k miles on it, and I don't beat the truck, but it seems like every 4 months the plug in cylinder 4 begins to misfire, and when I take the plug out, I find the insulator cracked, broken, or completely gone. I've changed the plugs out 4 times in the past year, it's getting annoying and worrisome. Could there be something in cylinder 4, or what else could be wrong?
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#8
Interesting. I just replaced my plugs in my 1999 truck, new to me. Before I knew what plugs were in there I bought Autolite iridium. The plugs I replaced were also Autolite. I had a misfire on cylinder 4which promted me to install new wires and plugs. My Ranger has only 65K miles. Hmmm.
#9
As far as I know, the current coil pack is original. Interesting, I might have to try replacing that, my truck seems a lot more sluggish then back in the old 60k mile days.
#11
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I had the same problem with my last truck, a constant cyl 4 missfire. About 6 month after it started I noticed my water level getting low and after a year of this problem the motor went bye bye on me. It was two thing according to my mech. Broken lower intake manifold gasket and a cracked head gasket. It much cheaper to have it checked and fixed than the alternitive route that I choose.
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