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1993 buick lesaber 3800 motor, service engine light comes ...

Sent to Car Experts July 02, 2006 5:11 a.m.

1993 buick lesaber 3800 motor, service engine light comes on when going up hill or on highway over 80 mph. lean fuel code comes up on computer test code #44, when service engine light comes on the car looses power, only goes around 50 mph up hill. when going down hill or on flat land the car runs fine.

Optional Information:
1993 Buick lesaber 3800

Customer (name blocked for privacy)

Status: Closed Value: $10

Answer
July 02, 2006 8:13 a.m. (3 hours and 1 minute later)

ACCEPTED

You don't mention if you have tried anything to fix this problem. The symptoms you describe, are typical of a plugged fuel filter. If you have already replaced it, then you will need to do a fuel pressure and volume test. The fuel pressure should be 37-44 pounds. The easiest way to check the volume, is to disconnect the fuel line at the fuel rail(the larger one), and insert the end into a 12 oz. can. then turn the key on for two 5 second intervals. The can should then be over half full. If the filter is not plugged, and you have the results to these tests, then send back a reply and we can go from there.

RonRepair -- Auto Mechanic/Tech -- 95% Positive Feedback on 67 Car Accepts
40 years of experience on all makes, 15 yrs. ASE Master Tech, 5 yrs. Certified Toyota Tech

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