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
  • ✓ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
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
  • ✓ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
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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  • 7 POSTS
It has codes 15,16,17.
Dec 19, 2021 at 11:25 AM (Merged)
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