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 Sedan FWD

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.

7 Answers


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.

6 people found this helpful.

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

7 people found this helpful.

If the security shutdown occurs how do you fix that

29 people found this helpful.

If your security light blinking how do I start my car it won't start

3 people found this helpful.

I have a 2002 Buick LeSabre 3.8 engine fwd I had to get a junk yard transmission because mine blew a hole on the passenger side where the cv axle goes in and now that the junk yard transmission is in now it wont start wont do anything just click's at the fuses box under the hood. jump start it cranks, sometimes the dash lights come on and some times they don't, It's never done this before so I'm not sure whats going on. I NEED HELP PLEASE also checked all ground wires and everythings tight and the security light is not on and not flashing so I'm just so lost right now.

Do you fix it

check to make sure your ac compressor is turning as I had the same experience with car turning over but not starting. turns out ac compressor was not turning, had no money for new compressor so I got a pulley bypass and once i put that in it worked. as soon as i popped the serpentine belt off initially it cranked right up, but obviously don't want to run it without that piece on.

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