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Old 09-24-2012, 05:28 PM   #11
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2001 Pontiac Grand Prix, 3.8 Non Supercharged. It has 152,000 miles on it. I changed the fuel filter about two years ago. Changed the spark plugs and fuel pump last summer. got a new catalac convertor last summer....Put new collant elbows on this summer. They were leaking and after taking it apart they were broke in pieces...Thats about it on the engine..
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Old 09-24-2012, 05:30 PM   #12
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How did you remove the coolant elbows? Did you remove the upper and lower intake or did you just remove the tensioner assembly?
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Old 09-24-2012, 05:31 PM   #13
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Also after I added the Sea Foam to the oil a few days ago, I drove the car for about 40 miles and changed the oil and filter..
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Old 09-24-2012, 10:43 PM   #14
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I had to remove the alternator and the tensioner assembly....
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Old 09-25-2012, 05:23 AM   #15
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Did you change the wires also?
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Old 09-26-2012, 07:32 PM   #16
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The spark plug wires? I did not change the plug wires when i changed the spark plugs..They didnt look bad the mechanic said..
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Old 09-27-2012, 05:32 AM   #17
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So the spark plug wires are at least over a year old? One cannot determine the performance ability of spark plug wires just by "looking" at them. The #1 reason why an engine would misfire is due to ignition related parts. Wires and sparkplugs.
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Old 09-27-2012, 06:35 AM   #18
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I was wondering if spark plug wires would do it good. Are the ones they sell at Auto Zone ok to use. I might go ahead and change the spark plugs again while im doing the plugs...Is it true that its good to put vasoline on the ends of the plug wires before putting them onto the plugs?
I also have a side mount battery and the negitive terminal is almost stripped but i can tighten it enough to stay put. Im concerned when winter time comes if it will come lose. Is there any quick fix for a terminal without having to buy a new battery?
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Old 09-27-2012, 06:57 AM   #19
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That could be another cause for misfire conditions is a loose/corroded battery terminal. If the terminal is stripped, I suggest getting a new battery. It'* only going to get worse.
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Old 09-27-2012, 02:32 PM   #20
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I will keep a eye one the termianal. Its on pretty good for now...
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