Engine turns, but car won't start on 1990 Buick LeSabre

I have changed the Crank Sensor, Camshaft Sensor, PCV Valve, MAF sensor, fuel filter, Oil Sensor Switch, Fuel Pressure Regulator, Spark Plugs, Spark Plug Wires and the car still won't start. I'm not sure what else could be wrong.

by in Birmingham, AL on May 13, 2010
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11 answers 13 comments
ANSWER by , September 06, 2010
It Is You Computer Module. They fry And No Fule and No Spark. We just changed two and make sure that you un hook the negtive battery cable. The computer is behind the glove box and you pull it by taking the bottom part of the dash off.Easy.
COMMENT by , September 06, 2010
Thank you, the car has been fixed. It was not the computer module. It was a defective throttle position sensor. Once that was replaced again, we had no more problems.
COMMENT by , September 12, 2015
where is this throttle position sensor located
ANSWER by , May 13, 2010
What is the fuel pressure and engine compression of your 1990 Buick LeSabre? Do you have spark to the spark plugs?
COMMENT by , June 01, 2010
Yes, there is spark to the plugs.
ANSWER by , June 01, 2010
Crazy but I had the same thing happen on my 1993 buick lesabre and I changed out the starter and it fired right up. You got juked. Poor guy
COMMENT by , June 01, 2010
No, it has a new starter and solenoid on it. It's not the starter.
ANSWER by , November 21, 2010
Anti theft key needs re-programming, alternately replace key ignition system, non-the-less it will still have to be reprogrammed by the gm dealer or an authorized programmer with the proper E=Prom. Throttle position sensor is another player in this symptom which can be replaced by one with some mechanical knowledge. An intermittent like this will not usually show up on an obd 1 or obd 2 testor, because it will not set an engine code.
COMMENT by , November 21, 2010
Thanks for your response, but as I stated, it was just a defective throttlw position sensor. The car was fixed back in July. It's been running without any trouble at all.
ANSWER by , February 27, 2011
COMMENT by , February 27, 2011
Please, please look at the previous blogs. The car has been fixed since July. It was a defective throttle position sensor. The relay and the temperature sensor are new. We had already replaced those.
COMMENT by , June 09, 2014
I know your car was fixed already but the continued responses are a blessing to me I'm having similar problems I took it to 3 mechanics two replaced the fuel pump, lol I paid twice for that one. The last one said it needed a computer, I'm not convinced of that I will try your fix first (throttle position sensor)is there anyway of testing it first?
ANSWER by , November 01, 2010
mine did the same thing, had to take it to dealership and they replaced the control modull and reprogram the car key.j cost me $589.93
COMMENT by , November 01, 2010
Sorry to hear that. But, fortunately for us, it was just the throttle position sensor. An easy fix for less than $100 if you know how to repair yourself.
COMMENT by , October 29, 2015
The key is a easy fix. There is even a manual on the Internet to show u how to fix it. First take your key and put a ohm meter and put one end at each end of the spot below the key handle that everyone use to call a chip . Anyway make sure you write the ohms down and go to radio shack and buy that same resistor for about 79 cents. Go on line look up make and model and follow the 2 wires they tell you to and solder the resistor to both of them. That's it. Now you can use any key without the so called chip. Just make a copy of the old one..I did it on my son's 93 lasbre 3.8.The 2 wires were easy to find, near the key imput. Just cut and solder. That's it.
ANSWER by , December 20, 2010
check coil pack / and fuel lbs
COMMENT by , December 21, 2010
I appreciate all of the responses that I have gotten, but please look at the date of my original question. The car was fixed back in July and has been running like a dream ever since. It was a faulty throttle position sensor. Merry Christmas!
ANSWER by , October 07, 2014
still won,t kick over i,m too old for computer s need to talk
ANSWER by , December 02, 2010
I had the same problem as you. finally had to put in in the dealer. Hundreds of dollars late and loss hair and busted knuckles. It turned out to be the ignition coil breaking down. Replaced the coil and no more problems.
ANSWER by , December 31, 2010
Maybe you shoud try replacing your motor buttons and distributor crap. Just a suggestion... I don't know.
COMMENT by , December 31, 2010
Thank you, but once again, this is an old post. The car was fixed during the summer and has been running right ever since. The problem was a faulty throttle position sensor. Does anyone know if there is a way to remove this posting or cancel it somehow?
COMMENT by , January 02, 2011
I couldn't help but giggle at your posts! I am having some issues with my 1994 Buick Lesabre. If you don't mind. What type of "trouble" did you experience? Thanks Pat
COMMENT by , January 02, 2011
Hi there, When we first started having trouble, it ranged from weird sounds coming from the engine area to the car starting whenever it felt like. My husband would leave and go to work, the car would start fine and then when it was time to come home we were calling the tow truck to bring it home. The check engine light stayed on, we found out that was the cam interruptor magnet and then the starting issues was the throttle position sensor. We basically rebuilt the car with a lot of new parts before we found out what was actually wrong with it. What type of issues are you having? Oh, and I'm on yahoo. The name is RobLeo0603 if you'd prefer communicating one on one. Robin
ANSWER by , January 25, 2011
coil pack bad