Trailing Coil Failure
Problem fixed!
Four days ago the CEL light came on along with the dead tach. I would restart the car and CEL light would be off and the tach would function, once I pressed the brakes to activate the brake lights, or any other electrical load, the CEL would turn on and the tach would stop functioning this happened consistently.
I cleaned the main ground wire/cable located in the lower left shock tower and the ground wires located under trailing coil, I used a external tooth washer between the ground wire ring terminal and the body, this gave a little more bite, I also spread dielectric grease, interesting that the ring terminals didn't look to badly corroded. Once I did this no more CEL and tach has been functioning.
The other thing I noticed is the last few months the voltmeter would stay just above the 12v mark. Since cleaning the ground wires the voltmeter consistently reads just under the 14v mark and wipers work a little faster, etc. I'm pretty confident that the problem is solved but time will tell. In a month I'll update, thanks for all your help suggestions!
Four days ago the CEL light came on along with the dead tach. I would restart the car and CEL light would be off and the tach would function, once I pressed the brakes to activate the brake lights, or any other electrical load, the CEL would turn on and the tach would stop functioning this happened consistently.
I cleaned the main ground wire/cable located in the lower left shock tower and the ground wires located under trailing coil, I used a external tooth washer between the ground wire ring terminal and the body, this gave a little more bite, I also spread dielectric grease, interesting that the ring terminals didn't look to badly corroded. Once I did this no more CEL and tach has been functioning.
The other thing I noticed is the last few months the voltmeter would stay just above the 12v mark. Since cleaning the ground wires the voltmeter consistently reads just under the 14v mark and wipers work a little faster, etc. I'm pretty confident that the problem is solved but time will tell. In a month I'll update, thanks for all your help suggestions!
Full Member
Joined: Dec 2004
Posts: 188
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From: los angeles
Problem fixed!
Four days ago the CEL light came on along with the dead tach. I would restart the car and CEL light would be off and the tach would function, once I pressed the brakes to activate the brake lights, or any other electrical load, the CEL would turn on and the tach would stop functioning this happened consistently.
I cleaned the main ground wire/cable located in the lower left shock tower and the ground wires located under trailing coil, I used a external tooth washer between the ground wire ring terminal and the body, this gave a little more bite, I also spread dielectric grease, interesting that the ring terminals didn't look to badly corroded. Once I did this no more CEL and tach has been functioning.
The other thing I noticed is the last few months the voltmeter would stay just above the 12v mark. Since cleaning the ground wires the voltmeter consistently reads just under the 14v mark and wipers work a little faster, etc. I'm pretty confident that the problem is solved but time will tell. In a month I'll update, thanks for all your help suggestions!
Four days ago the CEL light came on along with the dead tach. I would restart the car and CEL light would be off and the tach would function, once I pressed the brakes to activate the brake lights, or any other electrical load, the CEL would turn on and the tach would stop functioning this happened consistently.
I cleaned the main ground wire/cable located in the lower left shock tower and the ground wires located under trailing coil, I used a external tooth washer between the ground wire ring terminal and the body, this gave a little more bite, I also spread dielectric grease, interesting that the ring terminals didn't look to badly corroded. Once I did this no more CEL and tach has been functioning.
The other thing I noticed is the last few months the voltmeter would stay just above the 12v mark. Since cleaning the ground wires the voltmeter consistently reads just under the 14v mark and wipers work a little faster, etc. I'm pretty confident that the problem is solved but time will tell. In a month I'll update, thanks for all your help suggestions!
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