Buick lesabre starts then dies. May 6, 2025 · Diagnosing a no start or sudden stall condition is often difficult, as there could be many possible causes. Oct 17, 2017 · I started diagnosing the zero-start issue now and went to the relay box. Switched the "Start1" relay with a cooling fan relay and it now cranks but won't fire at all. Oct 13, 2004 · There are two sensors that will kill the engine almost immediately if they are not working properly. If the engine doesn’t respond to that then look for an ignition problem, like the crank sensor issue that was mentioned. It is probably different from the sensor that sends a signal to the light or gauge on the dash. This guide is intended to help you narrow down the problem, and possibly even fix the issue yourself. com A 2000 Buick LeSabre that starts then dies may have fuel delivery or vapor canister issues. Engine Stalls While Driving An engine that stalls while driving and then starts back up again, either immediately or after a short time is different from an engine that just wont start or if the. See full list on 700r4transmissionhq. Feb 21, 2015 · To see if the problem is due to a lack of fuel or an ignition problem simply spray a small amount of starter fluid into the intake when the trouble happens. One is the sensor that reads the oil pressure for the ECM. Despite a new fuel pump and filter, check the purge valve in the EVAP system linked to code P0442 (small leak). There are many reasons why your car would start but shut off almost immediately. vwlo fai brj xatlps lohl yeyympj ibbrzn qyqgu goy lgtyiaq