redwing4900
Member
- Joined
- Dec 6, 2018
- Posts
- 68
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It looks like there are a few ignition issues popping up around the forum, here is mine. 98 Yukon 5.7L new spider injection, rebuilt engine with 32k miles on it, 210k total. It had new plugs wires and cap and rotor after the rebuild. I overheated the engine about a month ago because of a radiator leak. I replaced the radiator and it seemed to be ok until I noticed a hesitation especially in 4th gear at low rpm. It wouldn’t start one day later and I found the cap and rotor were VERY corroded. Replaced them both then it ran fine for a week. The hesitation came back, this time it was giving me a code for the module in the distributor I can’t recall the code or the part name (maybe cam position sensor). I went to change this sensor, and one of the bolts broke off so I had to remove the distributor completely to get at it. After I replaced the module, finding a part of the old rotor up I there, I was pretty sure that when I reinstalled the distributor, the alignment was correct, since it fell right in and I had lined it up the way it was (I thought), but when I went to start it the codes started flying and it wouldn’t run. It was about a month ago, I had a cylinder 5 misfire which I never had before, but I figured it was because of the extreme corrosion on the cap and rotor. Since I don’t want to go out and work on it in the blind, I figured I would bounce this latest issue off of the forum.
Do you think it could be the ignition module or engine ground Or something else? That’s where I figured I would start clean up the engine contacts, double check the timing make sure it’s correct. I was wondering if the overheat could have caused the wires to go bad, and figured I could change them and the plugs. Is 30,000 miles an appropriate time for changing wires and plugs? I thought they would last a little longer but maybe it’s time since the corroded cap may have caused some overload to them.
Sorry for the ramble, but I’m trying to include all that happened here. So what do you think? I will re test tomorrow and have some codes and pass along what I find.
Thanks
Do you think it could be the ignition module or engine ground Or something else? That’s where I figured I would start clean up the engine contacts, double check the timing make sure it’s correct. I was wondering if the overheat could have caused the wires to go bad, and figured I could change them and the plugs. Is 30,000 miles an appropriate time for changing wires and plugs? I thought they would last a little longer but maybe it’s time since the corroded cap may have caused some overload to them.
Sorry for the ramble, but I’m trying to include all that happened here. So what do you think? I will re test tomorrow and have some codes and pass along what I find.
Thanks