SOURCE: 87 regal ignition switch wiring diagram
Thick wires at IGN SW .... Red(s) - supply power from the battery to the IGN switch ... Pink - ignition supply ... Orange - Accessory power ... Purple most RWD sometimes (Yellow most FWD) - Starter .. Did I miss any? It's been a while The thin wires on the IGN swich are for key sense and VATS (if applicable)
SOURCE: fans wont starton my 1992 buick regal
First things to check would be fuse(s) at dash & under hood, as well as rad fan relay & possibly coolant temperature sensor.
SOURCE: 2000 buick regal lse 3.8 wont start or turn over
several things to check out:
get it started and go have the battery, alternator, and voltage regulator tested. No charge at most parts stores.
IF they all test ok then you will need to remove the starter and have it tested. The solenoid could be bad. Was it wet outside the day it wouldnt start? if so then oisture is probably getting into the solenoid.
SOURCE: where is the primary fuel filter for the 87 buick
The fuel filter may be under the car , it is located near the passenger seating area under the vehicle or it may be on the driver side near the seating area, if you still can not locate the filter, you can locate the fuel by tracing the fuel lines foeard and you should be able to locate the fuel filter.
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