Hey everyone, GarageKing here and we have a problem we have and no start!!! We go to
turn the key all the way and nothing happens so a quick way to diagnose a
no-start is first things first, we should check if the fuel pump runs when we turn
it on so as soon as we turn the key so everything is on that fuel pump
should run so let me be quiet for a second and we're gonna see if we can
hear this fuel pump so let's turn the car key and everyone be quiet let's turn
up our computer speakers and see if we can hear from the inside of the car.
Here we go...... there we go the fuel pump what I'm gonna do is I'm gonna set the camera
outside just so you can hear what it sounds like from the outside in case you
were not able to hear it from the inside. Okay so I have the camera set up here's
a rear wheel just like that I'm gonna go turn the key and hopefully the phone
will pick up the fuel pump
so that was our test hopefully the phone picked that up and we're gonna move to
the next stage because we know our fuel pump is energizing, so we know our fuel
pump is running, so the next thing we have to do is check
if our starter is working or getting any power so here's our starter right down
there I can pan right down there in the starter it's kind of tight anyway there
we go there's a decent shot of it right by the transmission dipstick it's right
underneath these two hoses so that's our starter now when I turn the key I get a
click and I think it's I think it's the starter clicking so let me set up the
phone nice and close and let's see if it'll pick up the clicking of the
starter? Now for a better view of what we're gonna do is let's just take off
this top cover so we're just gonna undo these a couple things here a couple
little clips and we're gonna pull our cover right off because we're gonna be
able to see a lot better with this cover off so let's take it off so now we got a
good view of the starter so I'm gonna go turn it and you tell me or let's see if
we can hear this starter clicking let's see if our camera picks it up
my load test tool hooked up here you can see just like this so we're gonna pan in
here and we're just gonna load test the battery real quick so once I flip this
button it's gonna load battery and there you can see it's holding so the battery
although it's weak and it's probably weak because this vehicle hasn't been
started and we've been trying to start it so I would say the battery is still
okay so that's good okay so lastly I have the battery hooked
up sorry for the extra wire but it's just the way my leads were and I can see
the battery's 12.1 volt so it is low but it is over 12 volts so that's good so
what I'm gonna do now is I'm gonna crank it with this connected and let's see how
much the voltage drops, that's important now generally you should not have a
voltage drop more than about 0.5 of a volt and it's all going to depend upon
the condition of your battery in your starter but generally we shouldn't have
more than half a volt you can see I've got inside the vehicle there and it
actually dropped a little bit and I'm gonna click it and you can see we're
getting probably close to half a volt is what we're getting
so our voltage drop across our battery terminal is okay and obviously if I keep
doing this eventually we're gonna kill the battery but generally about you
don't want to see more than half a volt, if you start getting like 2-3 volts you
probably have a bad connection somewhere and you want to fix that as well.
Diagnosis on this vehicle.... Starter motor that's what I would say we need to
replace starter motor this one was pretty easy we listened for a few a few
things very easy for anyone to do all vehicles you should hear that fuel pump
run now obviously if you have a carbureted car a really old car you're
not gonna hear run because the fuel pumps mechanical but any vehicle built in
the 90s or later they're all pretty much fuel-injected you should hear that fuel
pump run and then listen for that clicking and those are two very
important things to listen for. Now if we didn't have clicking in the starter but
we had our fuel pump there's a chance but then we would be going in and we'd
be checking our relays but we don't need to do that because we know we're getting
power to the starter because we've heard a click and also when I put my hand on
here like this and I have an assistant turn the key I can feel the clicking in
the starter so I know the clicking is actually coming from the starter and not
from anywhere else so this vehicle needs a new starter
hopefully you've enjoyed this video on how to diagnose and know start here if
you have I would appreciate if you would subscribe any questions comments or
concerns please leave them below