Runs rough until it gets to 3,000 RPMS

1989 FORD PROBE
240,000 MILES • TURBO • 2WD • MANUAL
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929CHRIS
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Once the turbo kicks in it runs great other than it sounds like it is missing on all cylinders. i change the fuel pump, fuel pressure regulator, and i changed the distributor.
Dec 15, 2021 at 12:01 PM
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JACOBANDNICKOLAS
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Hi,

A misfire can be caused by several things. Have you checked for engine vacuum leaks? Has anyone changed the air intake tube?

Do me a favor. Let's start by checking for diagnostic trouble codes. This vehicle has an OBD1 system. You can retrieve codes without a scan tool. Take a look through this link and let me know if you find codes:

https://www.2carpros.com/articles/ford-lincoln-mercury-obd1-1995-and-earlier-diagnostic-trouble-code-definition-and-retrieval

Also, let me know if the engine has 240,000 miles. If possible, record how it is running and upload it for me to hear.

I will wait for your reply.

Take care,

Joe

Dec 15, 2021 at 7:15 PM
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929CHRIS
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How do i upload an audio clip?
Dec 18, 2021 at 10:29 PM
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JACOBANDNICKOLAS
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  • 110,175 POSTS
At the bottom of where you are typing, click on the "Add Image or Video."

Let me know if you find it.

Joe
Dec 18, 2021 at 10:41 PM
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929CHRIS
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It has codes 15,16,17.
Dec 19, 2021 at 11:25 AM (Merged)