Buick Repair Questions? Ask a Mechanic for Answers ASAP
Hi Im David. first thing i need to know is if it will crank or start with being jumped?
ok. new starter, new battery. so, we need to look at the connections at the starter. make sure they are clean of corrosion and not loose. same at the battery terminals and posts. then follow the main ground from the battery to where it attaches to the engine, make sure thats clean and tight.
what about the ign1 fuse, the starter solenoid fuse, and the bat 1 fuse in the engine compartment fuse panel?
pull the starter relay out put a jumper wire in, key on, and see if it starts
it might be called a crank relay
here ya go
absolutely im here with ya til we git er dun
ok hold on....
you have a meter?
pull the relay, check for 12 vdc in any of the slots. there should be 2 with voltage and 2 without....jump 12 volts to one of the ones with no voltage. if that doesnt work try the other one with no voltage...remember key on
ok do you have voltage on any of the slots?
so 12volts isnt making it to the starter.
or to the pcm
well you can try putting the jumper in and checking at the starter for voltage first. i know you replaced the starter, but it wouldnt be the first time a new starter is bad.
then if thats good. we'll have to check about getting voltage to the pcm
power to starter? thats good. hang on a few. thank you.
there is a fuse that is labeled "inkey"the diagram shows it being in the center console fuse block.... that is power for the starter solenoid... can you check that first?
ok..let me look into that
have you checked this one?
ok here is a pic of it, now i just have to figure out how to get to it
is this the same as the one on the side of the console?
yea actually its the back of that panel where all the wiring goes into it. so we will need to check the ecm for voltage.
the actual ecm. its under the air filter box
but before that, try rapping on the starter while someone is trying to start it.
did you rap on the starter while trying to start?
ok...gimme a sec
ok. here is a diagram with the crank signal to the pcm...
the yellow/black wire on connector c2 pin 76.... need to check for voltage there as someone tries to start
crank relay diagram is the first one i sent a couple days ago.... if there is no voltage then you might have to pull the relay panel if you cant see what position in the relay the yellow/black wire is so we can do a continuity test of that wire
do you still need assistance?
My name is ***** ***** I would like to see if I can help you with this problem. When you try to start the engine does the security light start flashing when you let go of the key and the switch is on the run position?