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Mercury
Grand Marquis
Trouble Codes
OBD1 Codes
Code 14
OBD codes 14 and 34, Engine turns over fine, but not a hint of firing?
1989 MERCURY GRAND MARQUIS
100,000 MILES • 5.0L • V8 • 2WD • AUTOMATIC
SDPLASKO
MEMBER
2 POSTS
Engine turns over fine, but not a hint of firing. OBD codes 14 and 34.
May 23, 2023 at 2:44 AM
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STRAILER
✓
Experienced Mechanic
55,616 POSTS
I would replace the MAF and coolant sensors here is what is said about the codes:
OBD Code 14: This code indicates a problem with the Engine Coolant Temperature (ECT) sensor or circuit.
OBD Code 34: This code indicates a problem with the Mass Air Flow (MAF) sensor or circuit.
Please let us know what happens.
May 23, 2023 at 6:45 AM
SDPLASKO
MEMBER
2 POSTS
Thanks for your input. I will update you with the results.
May 23, 2023 at 5:25 PM
STRAILER
✓
Experienced Mechanic
55,616 POSTS
Thank you.
May 25, 2023 at 9:59 AM
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