A relatively short summary of my situation is as follows.
I own a 2004 with roughly 128500 miles. I purchased it used with around 119000 miles. As with most older 8's it as its issues, but I come today searching for confirmation/guidance on remedying an issue that has recently surfaced. A week ago today did a bit of housekeeping on my car. Cleaned the MAF, replaced the air filter, cleaned the ESS, and carbon cleaned it. After performing the carbon cleaning on the old ignition system I replaced the coils, plugs, and wires with a new set. Following all of this, none of the issues I was attempting to address (rough idle, poor fuel economy, hard hot starts, reduced power) were solved except for perhaps a slightly smoother idle. Under normal circumstances I would simply attribute these symptoms to a failing engine since they fall directly in line with low compression symptoms, however, a new symptom presented itself post-install. I am now getting very hard cold starts which should not be caused by a low compression engine. Based on my research and knowledge a hard cold start could be attributed (in most cases) to either a weak battery or a bad component of my new ignition system. Once the car starts it runs fine in terms of smoothness and redlines with no misfires, but the gas mileage seems to have suffered even more than it was with what I assumed previously to be failing coils. I was told by the previous owner that they were replaced at about 105000 miles. The car started fine hot or cold when I purchased it at 119000.
My question:
Could these symptoms be caused by a bad plug or would a bad plug cause a misfire while running?
I will repost if I have any other questions and I will be checking periodically so please don't hesitate to ask if you need more information.
Thanks all!
Also, first post.
I own a 2004 with roughly 128500 miles. I purchased it used with around 119000 miles. As with most older 8's it as its issues, but I come today searching for confirmation/guidance on remedying an issue that has recently surfaced. A week ago today did a bit of housekeeping on my car. Cleaned the MAF, replaced the air filter, cleaned the ESS, and carbon cleaned it. After performing the carbon cleaning on the old ignition system I replaced the coils, plugs, and wires with a new set. Following all of this, none of the issues I was attempting to address (rough idle, poor fuel economy, hard hot starts, reduced power) were solved except for perhaps a slightly smoother idle. Under normal circumstances I would simply attribute these symptoms to a failing engine since they fall directly in line with low compression symptoms, however, a new symptom presented itself post-install. I am now getting very hard cold starts which should not be caused by a low compression engine. Based on my research and knowledge a hard cold start could be attributed (in most cases) to either a weak battery or a bad component of my new ignition system. Once the car starts it runs fine in terms of smoothness and redlines with no misfires, but the gas mileage seems to have suffered even more than it was with what I assumed previously to be failing coils. I was told by the previous owner that they were replaced at about 105000 miles. The car started fine hot or cold when I purchased it at 119000.
My question:
Could these symptoms be caused by a bad plug or would a bad plug cause a misfire while running?
I will repost if I have any other questions and I will be checking periodically so please don't hesitate to ask if you need more information.
Thanks all!
Also, first post.
0 commentaires:
Enregistrer un commentaire