|
Thu, Jun 22, 06 at 13:54
| My every day driver is a 1989 Mercury Grand Marquis LS. It has 87k miles, and burns no oil between 3k oil change intervals. However, lately, I've noticed a puff of dark smoke coming out of the exhaust, only on HARD accelerations. I have not been doing any interstate driving because I've been trying to conserve gasoline lately. My speeds hardly reach 60 mph. The car idles fine and does not miss. Does it sound like I just need to open it up a few times on the interstate, to burn off the carbon? I've heard about doing that every now and then. But, that was when everyone was running on leaded gas. |
Follow-Up Postings:
|
| Well, I think I may have discovered at least half the problem. Yes, the car needs to be "blown out" on the interstate. But, I think the catalytic converter is dead. |
Please Note: Only registered members are able to post messages to this forum. If you are a member, please log in. If you aren't yet a member, join now!
Return to the Cars Forum
Instructions
- You must be a registered member and logged in to post messages on our forums.
- Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review the contents and make changes.
- After posting your message, you may need to refresh the forum page in order to see it.
- It is illegal to post copyrighted material without the owner's consent.
- HTML codes are allowed in the message field only.
- No advertising is allowed in any of the forums.
- If you would like to practice posting or uploading photos, please visit our Test forum.
- If you need assistance, please Contact Us and we will be happy to help.