Turns over good, not getting any fire to the spark plugs. Fuses are good.
Dec 21, 2021 at 8:21 PM
No fire to the spark plugs?
1991 MERCURY MARQUIS
JESSE ME
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Hi,
By chance, do you notice if the fuel pump turns on for a couple of seconds? If it doesn't, I need you to inspect the EEC relay in the under-hood fuse box. See pic 1 for box location.
If there is a relay having the same part number, switch them to see if it starts. If there isn't, here is a link that shows how to test one.
https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit
If that is good, locate the ignition coil (see pic) and there will be two wires going to it. One should have power when the key is in the on or start position. The other will be ground. Check to see if there is power present.
If that isn't a problem, then we need to check for diagnostic trouble codes. This vehicle has an obd1 system which doesn't require a scanner to retrieve codes. You will need a test light. Follow the directions in this link:
https://www.2carpros.com/articles/ford-lincoln-mercury-obd1-1995-and-earlier-diagnostic-trouble-code-definition-and-retrieval
Let me know what you find or if you have other questions.
Take care,
Joe
See pics below.
By chance, do you notice if the fuel pump turns on for a couple of seconds? If it doesn't, I need you to inspect the EEC relay in the under-hood fuse box. See pic 1 for box location.
If there is a relay having the same part number, switch them to see if it starts. If there isn't, here is a link that shows how to test one.
https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit
If that is good, locate the ignition coil (see pic) and there will be two wires going to it. One should have power when the key is in the on or start position. The other will be ground. Check to see if there is power present.
If that isn't a problem, then we need to check for diagnostic trouble codes. This vehicle has an obd1 system which doesn't require a scanner to retrieve codes. You will need a test light. Follow the directions in this link:
https://www.2carpros.com/articles/ford-lincoln-mercury-obd1-1995-and-earlier-diagnostic-trouble-code-definition-and-retrieval
Let me know what you find or if you have other questions.
Take care,
Joe
See pics below.
Images (Click to enlarge)
Dec 22, 2021 at 6:19 PM
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Thank you for your help and merry Christmas.
Dec 22, 2021 at 6:27 PM
Hi,
You are very welcome. Let me know what you find. I want to get you going again. LOL
Take care,
Joe
You are very welcome. Let me know what you find. I want to get you going again. LOL
Take care,
Joe
Dec 22, 2021 at 9:22 PM