Wont start or will stall
1990 Buick LeSabre

Wont start or will stall

(1990 Buick LeSabre)
Car will start up with no problems, I will drive it around for a bit a shut it off. Will start up or will not start,when it doesn't start it will turn over but wont fire, or will start for a few seconds, but will sound like its misfiring or runs like hell and shuts off. If you let the car sit for half an hour to an hour it will fire up like nothing happened and the motor runs fine.
1 answer & 4 comments
Popular Answer
on May 26, 2014
With engie warm and idling, tap on mass air flow sensor wth a screwdriver handle to see if engine responds AT ALL, if it does... replace maf sensor.
Sign in to reply
on May 26, 2014
could a bad CAM sensor trigger the MAF sensor to go bad?
on May 26, 2014
NO... I have been doing this for over 40 years... never had a cam sensor failure! .. However i am sure they do give some problems.. but i dont think it is YOURS!
on May 26, 2014
so a bad MAF sensor can fail when the motor is warm. How does it start up fine when the motor is cool/cold then?
on May 26, 2014
Heat causes electrical componets to do funny things!!!! That is true with ANY electrical circuit or componet!!! Do the test i mentioned! Hope you get it fixed, have a nice day!
General Diagnosis
$88 - $111 Learn More
on May 26, 2014
With engie warm and idling, tap on mass air flow sensor wth a screwdriver handle to see if engine responds AT ALL, if it does... replace maf sensor.
Sign in to reply
on May 26, 2014
could a bad CAM sensor trigger the MAF sensor to go bad?
on May 26, 2014
NO... I have been doing this for over 40 years... never had a cam sensor failure! .. However i am sure they do give some problems.. but i dont think it is YOURS!
on May 26, 2014
so a bad MAF sensor can fail when the motor is warm. How does it start up fine when the motor is cool/cold then?
on May 26, 2014
Heat causes electrical componets to do funny things!!!! That is true with ANY electrical circuit or componet!!! Do the test i mentioned! Hope you get it fixed, have a nice day!

Similar Questions

View answers to similar questions from RepairPal's community of auto experts and enthusiasts.
When i try to start my ford edge i stick the key in the ignition all the lights on the dash column in radio come on...
My theft deturant light comes on car will not start. used owners manual no help. discnnected no help.this has is not...