Power loss

1990 CADILLAC DEVILLE
134,000 MILES
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JEZZYMAY75
  • MEMBER
  • 1 POST
It sounds like it going to shut off it was going 70 mph. now i'm lucky to go 15 mph. i bought the car two months ago they said it just got its fuel injectors replaced.
Aug 20, 2020 at 11:32 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,240 POSTS
Hi,

If you are experiencing a power loss, it can be a few different things. A plugged catalytic converter, low fuel pressure, ignition related issues and so on.

Here is what I need you to do. This vehicle has an OBD1 diagnostic system. You don't need a scan tool to get codes, so we need to check if there are any that can point us in the right direction.

Here is a link that explains how it's done. All you need is a short jumper wire or even a paper clip.

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https://www.2carpros.com/articles/buick-cadillac-chevy-gmc-oldsmobile-pontiac-gm-1983-1995-obd1-code-definitions-and-retrieval-method

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Follow that and let me know what you find.

Take care,
Joe
Aug 20, 2020 at 3:24 PM
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