changed my plugs and wires, but now im leaking antifreeze? - Ranger-Forums - The Ultimate Ford Ranger Resource


4.0L OHV & SOHC V6 Tech General discussion of 4.0L OHV and SOHC V6 Ford Ranger engines.

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Old 05-04-2008
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Icon8 changed my plugs and wires, but now im leaking antifreeze?

So I just changed my spark plugs and wires, and after fixing some incorrect firing orders I thought I was good to go. Started up my truck and it's not ideling the way it usually is. My neighbor seems to think it's ideling fine, but I drive it everyday and I know how it runs. The engine is running a little rougher than usual. It's leaking coolant from the upper radiator hose. Is there a correlation between these? Or has it just been going on for a while and I havent noticed it?
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Old 05-04-2008
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Check and make sure everything is plugged in right and make sure you have the right plugs and stuff.
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Old 05-04-2008
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I've checked three or four times to make sure that the plugs are in their correct firing order and that they are in themselves. I'm confused and mad 'cause now I can't show off my new lights at school tomorrow. haha
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Old 05-04-2008
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Have you tried tightening the clamp on the upper radiator hose?
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Old 05-04-2008
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My neighbor and I identified where the leak was coming from. I'll replace that, but I think I either gapped one or more plugs too much or too little 'cause that would cause the mis-firing right?
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Old 05-04-2008
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Yup it sure would
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Old 05-04-2008
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yeah it's not an intense mis-firing, just enough to make the idle off though. Should I take them all out and check them to make sure they are gapped correctly? Or is that bad to put plugs back in that have already been in there?
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Old 05-04-2008
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No you'll be find putting them back in. It wouldn't hurt to check them again.
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Old 05-04-2008
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take em out and re gap em. go by the firing order on the coil pack with #1 being passenger front. i did a 3.0 the other day and the chiltons manual had the incorrect firing order. i yhink the gap should be like .043
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Old 05-04-2008
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my gap says .052 - .056. I tried to gap them at .054 so I dont think that I could have caused too much error, right?
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Old 05-05-2008
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i figured it out, and im a dumb*** haha. I didnt have the coil pack and the cylinders matching correctly so the plugs were sending signals to the wrong spot. thanks for the help. oh yeah ill be replacing that leaking hose here pretty soon too haha.
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