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Car won't start?

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Any applicable trouble codes? Did you use a gage and check fuel pressure?
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Tuesday, August 4th, 2020 AT 3:55 PM (Merged)
Tiny
UDUFFUS
  • MEMBER
  • 6 POSTS
No codes at all & the fuel pressure's great (new fuel pump)with the pressure at about 40 psi
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Tuesday, August 4th, 2020 AT 3:55 PM (Merged)
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
I haven't looked up your thermostat, but, 185 sounds too cold to me. What is engine vin/litre size. My fuel pressure spec says 48--55psi, key on engine off.
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Tuesday, August 4th, 2020 AT 3:55 PM (Merged)
Tiny
SUPERGLIDERICK
  • MEMBER
  • 2 POSTS
  • 1997 BUICK LESABRE
  • 180,000 MILES
I replaced the EGR Valve. The Car Ran before I replaced. After we Replaced it The car won't Start. We have fuel and Spark. But it won, t start.
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Tuesday, August 4th, 2020 AT 3:55 PM (Merged)
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
What does it do when you try to start it?Also have you checked for codes?
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Tuesday, August 4th, 2020 AT 3:55 PM (Merged)
Tiny
SUPERGLIDERICK
  • MEMBER
  • 2 POSTS
The car turns over. When it did start. It started and then ran rough. And then died. We ran a scan on it. And nothing showed up.
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Tuesday, August 4th, 2020 AT 3:55 PM (Merged)
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
Are you sure you didnt double gasket the egr valve or leave the gasket out or not clean the old gasket good enough and have a vacuum leak?
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Tuesday, August 4th, 2020 AT 3:55 PM (Merged)
Tiny
AKHAMMER17
  • MEMBER
  • 5 POSTS
  • 1997 BUICK LESABRE
1997 Buick LeSabre. Went to start it and it wouldn't start. Tried again and there was a loud pop and then smoke. Could there be something wrong with the spark plugs?
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Tuesday, August 4th, 2020 AT 3:55 PM (Merged)
Tiny
FIXITMR
  • MECHANIC
  • 9,990 POSTS
You could take them out and look at them for wear/deterioration?
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Tuesday, August 4th, 2020 AT 3:55 PM (Merged)
Tiny
AKHAMMER17
  • MEMBER
  • 5 POSTS
I checked the codes and there were (P0300) Random/Multiple Cylinder Misfire detected and (P1406) EGR VALVE PINTLE POSITION CIRCUIT.
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Tuesday, August 4th, 2020 AT 3:55 PM (Merged)
Tiny
ELOEFFLER
  • MEMBER
  • 1 POST
  • 1997 BUICK LESABRE
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 105,000 MILES
The serpentine belt broke on the Lesabre with a 3.8L engine. I replaced the belt, and now the engine will not start. Did some kind of timing get thrown off, or is there a security system that needs resetting? There was not much left of the old belt, but a bunch of strands and chunks got stuck behind the crank shaft pulley. We cleaned most of them out, as be as we can tell. Is there a sensor behind the pulley that may have been damaged? Any help is appreciated. Thanks.
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Tuesday, August 4th, 2020 AT 3:55 PM (Merged)
Tiny
OBXAUTOMEDIC
  • MECHANIC
  • 3,711 POSTS
Hello,

Yes, the Cam and Crank Sensors are in that area.

The Camshaft Sensor is located on the lower right of engine above crank pulley.

The Crankshaft Sensor is located behind right side of crank pulley.

.
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Tuesday, August 4th, 2020 AT 3:55 PM (Merged)
Tiny
CHARLES HALL
  • MEMBER
  • 1 POST
  • 1997 BUICK LESABRE
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 192,000 MILES
What does the coil pack do on this car, and what does a Electric Spark Control sensor do?
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Tuesday, August 4th, 2020 AT 3:55 PM (Merged)
Tiny
DENNYP
  • MECHANIC
  • 1,824 POSTS
The coil pack is your ignition coil. This is what generates the high voltage to the spark plug. The ESC is the ignition control module. This controls the timing of the spark. It tells the coil when to send voltage to the spark plug.
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Tuesday, August 4th, 2020 AT 3:55 PM (Merged)
Tiny
ALJNWALDEN
  • MEMBER
  • 2 POSTS
  • 1997 BUICK LESABRE
1997 Buick Lesabre 6 cyl Front Wheel Drive Automatic

I have a 1997 Buick Lesabre, 3.8, 6cyl. After driving the car to a few places and stopping, shutting off engine, when I try to restart the car it will turn over but wont start. If I let it set for a little while, with positive battery cable OFF, it will start again. I need to know what is causing this, or what part I need to fix it.
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Tuesday, August 4th, 2020 AT 3:55 PM (Merged)
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
When it turn's over and won't start is the security light on or flashing?Also do you have spark when it crank's and doesn't start?Also do you have any code's?
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Tuesday, August 4th, 2020 AT 3:56 PM (Merged)
Tiny
ALJNWALDEN
  • MEMBER
  • 2 POSTS
Yes, Security Light is on. We do have a spark, just doesnt start. We got codes, but I can't remember the codes thereself, but I know they were for a crank sensor, map sensor, or mass airflow sensor. Which of these would come closer to being my problem?
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Tuesday, August 4th, 2020 AT 3:56 PM (Merged)
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS


https://www.2carpros.com/forum/automotive_pictures/416332_1997_buick_lesabre_pass_lock_1.jpg


If the security light is on when it doesn't start then that is reason it's not starting is because the security light is on.Follow the what i posted i also emailed it to you so you can see it better.
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Tuesday, August 4th, 2020 AT 3:56 PM (Merged)
Tiny
RORY2008
  • MEMBER
  • 2 POSTS
  • 1997 BUICK LESABRE
Other Category problem
1997 Buick Lesabre 88000 miles

When starting my Buick, I heard a pop sound and smoke arose from under the hood (on the passengers side).
The car was then running rough (like it was missing). I took it home, and tried to start it the next day and now it won't start. Just the rrrrr sound but no start up.

Could it be the carburetor? Someone told me not to try to start it again, that it could be a hose broken that leaked gas on the engine?

Any ideas? I am a female and do not know how to fix my own car, but I want to be as informed as I can when I take it to a mechanic.

Thanks,
Rory
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Tuesday, August 4th, 2020 AT 3:57 PM (Merged)
Tiny
SERVICE WRITER
  • MECHANIC
  • 9,123 POSTS
The symptoms you have can be from a results of many different possibilities. It may be too much or not enough fuel, spark missing on some or all cylinders, a problem with timing or compression in a general sense. It need to be troubleshot using various testing procedures.

Not to sound condescending, but that car has a fuel injection system, no carburetor. They are related in a broad sense but 2 very different animals.
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Tuesday, August 4th, 2020 AT 3:57 PM (Merged)

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