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Anonymous Poster
itzjess@cfl.rr.com
Jul 23, 2007, 12:35 PM
Post #1 of 5
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Spark Plug Wires...
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I was wondering if bad spark plug wires would make the spark plugs go bad?
A little insite. I have a 1993 toyota camry. About a year and a half ago my car started to shake really badly. My husband replaced the spark plugs but that didn't do anything. My brother said to replace the oxygen sensor. It didn't help. Then we replaced some other part that I cannot remember but I know it was almost $200  And it didn't help either. A little research and we found out that the plugs that we put in while did match up according to the AutoZone man. Were not the right ones so after buying the "special" plugs at $9 a piece. The car ran fine...... For about 3 months! Then it started doing the same thing. Shaking. We parked it and bought a second vehicle and have been driving the newer one ever since.
Now I want to get my old camry running again but I don't know where to start. My husband thinks that we should start with the oxygen sensor again. I am thinking that maybe it is the plugs again since that is ultimately what "repaired" it the last time. But since those are all relatively new parts. They were only driven on for about 3-4 months. I didn't know where to start??
So, would bad plug wires cause good spark plugs to go bad in just a few months of driving?
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Jul 23, 2007, 3:17 PM
Post #2 of 5
(1585 views)
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Re: Spark Plug Wires...
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Sure a bad plug wire can foul up a spark plug. If you want to test it move the probably just one bad plug or wire and see if the problem follows that plug or wire. Since plugs are new you could just heat up a fouled one with a propane torch and put new wires on and that would probably solve it. The o2 sensor(s) won't be happy with a skip on a cylinder but if it wasn't run poorly too long,
T
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Guest
Anonymous Poster
Jul 23, 2007, 3:28 PM
Post #3 of 5
(1582 views)
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Re: Spark Plug Wires...
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Thank you, as you can probably tell we are not to mechanically inclined when it comes to reparing vehicles. We are not sure if the plug wires are bad but since they were not changed back then when everything else was that is what we are thinking now. We will replace those and go from there.
I was just wondering if I should go ahead and replace the spark plugs while I replaced the wires too. But I would really rather save myself that $50 if I could get by without it.
I am assuming from your post that the oxygen sensors should be fine since the day that the car started shaking again it was parked. It was run for aproximately 8 miles while jittering like it does now.
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Jul 23, 2007, 4:18 PM
Post #4 of 5
(1581 views)
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Re: Spark Plug Wires...
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I am just guessing that if the new plugs worked for a while that one wire could be bad and have fouled that plug. There could be more wrong and would take some investigating but it just seems like a plug wire is bad. You can buy just one if you isolate it and just one plug of the exact same as the others that worked. At its age new plug wires with a problem isn't a waste to do them all. The plugs are so new I don't think you need them all again. If these are easy plugs just take a look and one will look different than the others. That's the cylinder with the problem -- plug, wire, fuel problem, or other problem but since it corrected with these last new plugs it leads to the wire being the problem,
T
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thomas74
User
Sep 3, 2007, 3:23 PM
Post #5 of 5
(1560 views)
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Re: Spark Plug Wires...
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02 sensor will not cause a miss you need to check your wires u can test them or just get new ones check your coil
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