Car turns over but wont start, changed fuel filter now it starts for a few seconds then stops

Asked by Apr 13, 2014 at 10:09 PM about the 2002 Buick LeSabre Custom

Question type: Maintenance & Repair

Car wont start, it turns over but wont start.
Changed the fuel filter today and after we
changed it it seemed to stay started for a
few seconds but then would stop. The
battery is new, the fuel pump works, the
spark plugs all produce sparks. And ideas?
Please I could really use some help.

3 Answers

105,915

Is check engine light on? If so need to get codes. Auto zone will do this for free. Then post codes back on here. Could be any number of things. Check fuel pressure at fuel rail. This will insure that fuel pump is putting out enough pressure. Could also be dirty/faulty idle air control valve or throttle plate, stuck open pcv valve, stuck open egr valve or possibly a vacuum leak.

4 out of 4 people think this is helpful.
19,455

a security shutdown can occur , check for security light blinking if equipped with

6 out of 6 people think this is helpful.
150

If the security shutdown occurs how do you fix that

15 out of 15 people think this is helpful.

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