I have buick regal LS 1999. My car turns off while driving. It also turns off when I use my signals. That is why after turning the key I use the signals to make sure the car wont turn off. Lately even after I check the signals, after a while my car shuts off while driving. I changed the fuel pump, ignition switch and it is getting even worse now. Please help me. I am bringing my car to the shop in a few hours. I paid over 1500 dollars and nothing. Please help me
Country: United StatesMake: BuickModel: Regal LSYear: 1999
changed fuel pump, water pump, ignition switch
Hi,welcome to Just Answer.I will be happy to assist you with this question today.I will try and assist you as best as possible from here,feel free to ask any follow up questions to my info provided here.
I have seen this fault several times before on this model vehicle here.There are two common components that can fail and cause this.One is the electronic ignition switch that can cause stall outs and the other is the multi function switch/turn signal switch that will cause this short and cause a stall out.
From what you have described here and with what has already been replaced this sounds like your multi function switch is at fault and is most common for this concern here as I have seen and have had to replace several times.
It shorts out internally and causes a stall out in some cases when using the turn signals and in some cases when not using the turn signals.
This switch needs replaced in order to correct this fault here.
This switch usually isnt cheap in cost as I have seen it cost around $400 from a dealer or more and in some cases you might be able to get one from an after market parts store for around $200.Labor to have it installed can cost around 1.5 hours.
where is this multy function switch located at?
This is the switch behind the steering wheel that the turn signal lever is attached to.(this is the lever you use to actuate the turn signals and is part of the switch itself)
the mechanic changed 3 parts behind the steering wheel 2 weeks ago and this problem is still occuring even more often. What do you think the problem would be if he changed the multifunction switch already?
If the multi function switch has been replaced and the ignition switch (not the ignition cylinder but the electrical switch itself) then I have seen in some rare cases the new turn signal/multi function switch at fault and also have seen loose and corroded battery cables at the battery as well as where the cables run from the battery and connect at the engine,starter,alternator and under hood fuse box.These connections will cause an intermittent loss of voltage and can cause this issue as well.If the multi function switch was replaced the mechanic may want to re check the switch signals and make sure the new one is not faulty.
Let me know if you need anything else with this question asked here.Thanks Pete!
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Hi Ognyan,I'm just following up with you to see how everything is going. Did my answer help?Let me know,Pete