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1995 Mercury Grand Marquis GS 4.6L Check Engine Light
the check engine light has continued to be on for past 10 months and always reads the same code po401. have tried replacing egr vacuum regulator, egr pos sensor and valve, cleaned out intake chamber and all vacuum lines checked good. any suggestions would be g...
FIX posted 9/24/2003
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Message Closed w/FIX
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Related Documents & Media | VIN | 2MELM74W6S |
| Engine | 4.6 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | Not OBD-II Compliant |
| Symptoms | Check Engine Light |
| Occurs | Always |
Trouble Codes
| P0401 | EGR System Insufficient Flow Detected |
Message Closed w/FIX
Vehicle Data
1995 Mercury Grand Marquis GS
| VIN | 2MELM74W6S |
| Engine | 4.6 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | Not OBD-II Compliant |
| Symptoms | Check Engine Light |
| Occurs | Always |
Trouble Codes
| P0401 | EGR System Insufficient Flow Detected |
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