Rattle sound and running rough?

1990 DODGE DAYTONA
127,000 MILES • 2.2L • 4 CYL • 2WD • MANUAL
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PUNKYCAT1
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  • 2 POSTS
Started running rough and when pressing on the gas pedal a lot of rattling noise, but the idle on tach is steady at 1,000 in idle.
May 7, 2022 at 9:45 PM
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JACOBANDNICKOLAS
  • CERTIFIED EXPERT
  • 110,175 POSTS
Hi,

Is the noise coming from under the vehicle or the engine compartment? If under the vehicle, it could be the inside of the catalytic converter that is loose and blocking airflow. That would cause a power loss and poor running conditions. Take a rubber mallet and tap on the exhaust to see if you can reproduce the sound. Then check to see if it is coming from the converter.

Here is a link you may find helpful:

https://www.2carpros.com/articles/bad-catalytic-converter-symptoms

If you hear it from the engine area, first let me know if the check engine light is on. Or check for diagnostic trouble codes and let me know what you find. Here is a link that explains how to get them. You don't need a scanner.

https://www.2carpros.com/articles/retrieve-trouble-codes-for-chrysler-dodge-plymouth-odb1-1995-and-earlier-car-mini-van-and-light-trucks

Let me know what you find.

Joe
May 8, 2022 at 9:02 PM
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PUNKYCAT1
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  • 2 POSTS
Hello,

No, the check engine light isn't on, and I checked the codes and nothing is coming for it. I'll have to check the catalytic converter thing tomorrow, but I don't think the noise was coming from that area.
May 9, 2022 at 2:42 AM
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JACOBANDNICKOLAS
  • CERTIFIED EXPERT
  • 110,175 POSTS
Hi,

Let me know what you find. Also, if it is loud enough to record, do it and upload it for me to hear.

Let me know.

Joe
May 9, 2022 at 5:59 PM