Question about 1995 Buick LeSabre

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1995 buick lesabre 3.8 turns over but will not crank.will run if you keep spraying gas into throttle body.

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Replace the fuel pump...if you have already, then replace your fuel pressure regulator.

Posted on Sep 13, 2010

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Posted on Jan 02, 2017

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1995 Buick LeSabre 3.8 Liter Wont start unless I push down on gas pedal like it wants more gas, Why? Runs OK when running


Possibly a bad or dirty Idle Air Control motor. The engine computer controls the operation of this motor to control idle speed. A pintle on the motor extends and retracts, according to signal from the computer. The pintle controls an air passage below it to give or take away air during idle -when the throttle shaft is closed, no air will get into the engine through the throttle body except through the idle air passage . The IAC motor or valve is on the throttle body, with a 4 wire connector. Take it off and look for carbon or coking deposits around the valve's pintle, and in the air passage beneath it. With the idle valve off, plug the connector back on it, then watch the pintle as the key is turned to on. If there is no movement whatsoever, the motor is probably bad.

I have also heard that a bad coolant temperature sensor can cause such a hard start. If the computer does not know the engine is cold, it won't put enough gas into the cylinders for easy starts. The engine needs more gas to start and run when cold.

Sep 13, 2014 | 1995 Buick LeSabre

1 Answer

1997 buick lesabre reads no codes . Engine turns ove,r car wont start. why? could it be a crankshaft sensor or a camshaft sensor


1st you need to see if its spark or gas related.spraying carb cleaner into throttle body
is a easy way to ck for gas.pull plug wire & ground to ck for spark
good luck

Jun 10, 2011 | Buick LeSabre Cars & Trucks

1 Answer

Whenever i turn the wheel on my 2000 buick lesabre, my car acts like it wants to shut off and sometimes while im driving it does shut off, but cranks rite back up! It also idles high sometimes. What could...


Well you have a three part question...so part one the engine whats to shut off when you turn the wheel>there is a steering pressure switch located on the power hose line running to your power steering pump,,,it has an electrical connector make sure it hasn;t come loose or fuild leaking at base of switch or on top by connection...this switch sends a signal to your computer to increase the engine speed when the wheel is cranked so it doesn't stall ..Number 2 while driving shuts down can be a number of things but sort of relates to Number 3 idleing high sometimes...On your throttle body there is a component called a IAC sensor [idle air control} it should be tested sometimes the oring seal goes bad...also check condition of your air filter,if your vehicle has a MAF sensor {mass air flow } it also could be dirty....so with your air filter off and engine running spray some THROTTLE body cleaner into the opening of throttle while increasing the Rpm's of the throttle...Hope this leads you the right way

Nov 08, 2010 | 2000 Buick LeSabre

1 Answer

I have a 1995 buick lesabre and i changed control module,position sensor,cam sensor and computer. car stop and will turn but want start. when i first bought car it had this vibration on take off but never...


Are you getting gas and spark to the cylinders?

If you add gas to the throttle body, does it start?
If so, then you have a fuel pump delivery problem in this vehicle.

If it doesn't start, then you may have a spark problem at the spark plugs due to a coil pack going bad or a module (but you said you changed the module).

Also, is this a 1995 Buick LeSabre of a 1993 Buick Skylark (which it is listed under)? What engine size is this?

Aug 06, 2010 | 1993 Buick Skylark

2 Answers

95 buick lesabre dies all the time


Sounds like a vacuum leak. Check to see that all the little vacuum hoses (and one big one to the brake booster) are attached and not cracked. Hope that works.

Sep 11, 2009 | 1995 Buick LeSabre

1 Answer

My 1995 Buick Lesabre is misfiring


If it only happens at a certain point in the throttle travel, it may be a bad TPS. You would need a computer to confirm loss of signal, but that is what it sounds like.

Jun 08, 2009 | 1995 Buick LeSabre

2 Answers

1995 Buick Lesabre custom stalling and idle


did you clean the idle speed control air bypass valve?, u do this by spraying carb spray into the intake while the engine is held at hi idle so it won't stall, use up about half the can, then shut down and disconnect battery for 5 minutes to reset system idle learn, drive the car for a few days and let me know if the problem is fixed.

Mar 24, 2009 | 1995 Buick LeSabre

4 Answers

1995 BUICK LESABRE WON'T START


bad fuel pump, or fuel fuse/relay check fuse or relay first

Sep 27, 2008 | 1995 Buick LeSabre

3 Answers

Buick lesabre no start


Hi you have replaced allmost everything ,(try fuel pump relay)

Jul 31, 2008 | 1992 Buick LeSabre

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