Question about 1993 Buick LeSabre

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1993 buick le sabre no spark problem

The problem is that the car died while idling and has no spark. I replaced the ignition module and checked all the fuses. there are no trouble codes set in computer.dont have repair manual that would give me troubleshooting or wiring diagrams, sure would like some help.Thank you.

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  • sernik97 Jun 23, 2008

    I have a 1993 buick lesabre as well and I have somewhat similar problem, but I have replaced the crank sensor and car will not start. Could it actually be the starter and its just not showing the classical mechanical signs of the starter not functioning?

  • john619 Jul 13, 2008

    ive also replaced the crankshaft sensor



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You should be hable to get some free repair tips at, or buy it, but i will recomend you to replace the crankshaft sensor, because the crank sensor and the ignition module is what trigers the coils, i hope and i been help full and i will apreciate the ranking to me.

Posted on Jun 17, 2008


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1994 Buick Le Sabre starts first time, runs great. Won't restart until something has cooled off.

do you mean it will not turn over or it turns over but will not start..?? If it turns over it is possibly the IGN module ... expensive part.. could be the ign switch.. inside the steering column.
Have you checked to see if spark or fuel is missing? one of these has to be missing for the engine not to start if it turns over.. If it does not turn over check the starter for "heat Soak" an old GM problem.

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those wires are probably going down to the crank sensor if that sensor fails then the car will not start so fix the wiring and try replacing the crank sensor.

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Installing ignition module

Unscrew the ignition coil(s) from on top of the module...(leave plug wires attached)....and set aside noting coil position on module....unplug module and replace with a known working module.If there is grease under old module...transfer it to new module.Replace coil(s) and start her up.
TIP. While you are there,why not also change the crank sensor (if it not new) is THE trouble maker on these engines.

Nov 03, 2009 | 1992 Buick LeSabre

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Car wont turn over

these cars have a antitheft system that will shut down fuel and crank. be sure to check to see if after the car ignition is on for 30 seconds and look to see if there is a security light on in the dash. if so then turn to crank if security light flashes your problem is that the chip in your key is not being transfered to the security module, so starter will not work. you will have to replace the pickup in the cylinder or bypass the security with proper resister

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My 1993 Buick Le Sabre idles crazy and it stalls randomly. Sometimes it will start right back up and sometimes it takes 20 min, 2 hours, or sometimes 2 days. It was my moms before it was mine and she...

does it start up and die again real quick and can you keep it going with your foot on the gas. if it does and you can it is probably the idle air control valve or the throttle position sensor. if it doesn't and it just turns over try the ignition control module. my 94 park ave did something similar but it shut down and wouldn't start back period and then i cleaned the chip on the key and it fired right up.

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my 88 buick stop when ideling, also it jerks when going 55 and up. i have change the spark plugs.

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Thanks for the help on my 93 buick le sabre ive replaced the crank sensor but it still wont start. cranks over ok. no spark. the ignition module has been replaced

thats weird mmmm make sure than you have power going to the black and pink wire or pink with black stripe wire when you turn the ignition on, i don't know what else to recomend you since im not close to the car but the only coming problems on these cars is the module or the crank sensor, did the module installed on it was new? or used? if not sure or even if is new call to auto zone
and ask them if they test ignition modules for free i belive they do and if tehy do take the module out and take it to them, for testing, also by the time you remove the igniton coils turn the ignition on, and make sure you are geting power to one of the coil conectors, and the only way to get to the conectors is by removing the coils, and if there is not power then your ignition switch or a lecttrical problem is present, also make sure to do a cotinuity test to the wires coming from crank sensor to ignition module, check them for open or short to ground

Jul 20, 2008 | 1993 Buick LeSabre

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