1998 Chevrolet Lumina?

My '98" Lumina turn signals won't work, auto doors work some times, and car keeps seeming approaching it's gonna run hot. I turn on the air conditioner to cool it. My mechanic has told me several times that he have no idea why it's running hot and has run several diagnostic trial. I am going to see about buying some fuses today to see if that may be problem. Any suggestions?

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I'm going to ask a dumb examine...


if it's running hot, it's any a head problem (head gasket/warped head

or it's a cooling system problem, fan, thermostat, coolant, radiator etc...

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Answers:    Turn signal switch failure is adjectives on those cars. Power door locks work off of a relay, that could be bad. By "seeming similar to it's gonna run hot" do you mean it gets melt inside or the temperature guage starts creeping up? I would guess the temperature sensor (not the sending unit) is malfunctioning and not turning the cooling fan on. The cooling fans turn on when you turn on the A/C, so the fans themselves are not the problem.
if it's running hot, it's any a head problem (head gasket/warped head

or it's a cooling system problem, fan, thermostat, coolant, radiator etc...

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