Will not crank, possible fuel pump relay

1981 CADILLAC DEVILLE
64,000 MILES • 6.0L • V8 • 2WD • AUTOMATIC
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MARCLAMAR21
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Won't crank, I replaced pump, tank,and fuse. And still dose not crank.
May 27, 2020 at 8:19 PM
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KASEKENNY
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When you say it does not crank do you mean the engine turns over but does not start or when you turn the key it doesn't do anything? Based on what you replaced, I assume you mean it cranks but doesn't start.

Here is a guide that helps with that issue:

https://www.2carpros.com/articles/car-cranks-but-wont-start

If it cranks but does not start then it could be the relay but let's start with seeing if it is even a fuel issue. The way we do this is spray a little starter fluid in the intake and crank the engine. If it starts for a second or two then we can pursue a fuel issue.

Let me know about this and we can go from there. Thanks..
May 28, 2020 at 4:52 PM