rev up your engines today I'm gonna show you how to fix a car that stalls out
intermittently every once in a while not a case of this Corvette it'll start up
and run okay now a sudden it just stalls out when it's idling but it does have
the service engine soon light which serves as a check engine light and this
so we're gonna scan it so we plug the out scan tool in now let's see what it
says it says PO335 crankshaft position sensor circuit malfunction now that does
make logical sense our stalling because the crankshaft position sensor here it
is in a case of this Corvette it measures the flywheel spinning around to
tell the computer what position the crankshaft is named and if it loses data
it can shut the car off because it doesn't know what's going on it doesn't
send the pulses so the car doesn't run now these sensors the crankshaft
position sensors I'm GM products they go out all the time so we're gonna replace
it and hope that that's the only thing that's wrong that it doesn't have a
wiring fault or computer failure or even worse the reluctor on the flywheel has
fallen off and there's no longer standing a signal here we would have to
pull the transmission off the car in order to fix it so let's hope it's just
the stupid sensor no the hi I'm all over the place but if you look it up on it's
Corvette got a bottle in the car but you have to remove the starter to get to it
I know they're brilliant team design now since we have to remove the starter
first we're gonna disconnect the battery turn so we don't short anything out well
just on voltage pull it out away so it can't touch the positive terminal and
make up short somewhere now the circuits open so there's no power now jack it up in the air
so we get the starter and then the case of this Corvette we
certainly want to use a jack stand there low to the ground and if something
happened it fell down it would squash you like a pancake go under it go and
even though I started with this mat I got a bigger one now cuz I can
slide it on to a crawl under without getting dirty and as we slide under way
lock there's the starter it's got two bolts on it that we take off we take off
take off the inside one first because that's often kind of an away so you want
to get the harder one to get off first and there goes one and there goes the
second one it's a thirteen millimeter socket if you're curious long
threads and out it comes my question all there's not enough room to get it off
but not taking everything off so now we gotta take off the power line up here
and we gotta take that off ah then once you get all those stupid wires off going
that much working room come up enough what wouldn't you know GM makes them
like right up the casting mark on the engine block is in the way so you can't
get the star to run off the only way you're gonna be able to get the starter
off is by pulling the catalytic converter and the exhaust system off so
I'm not gonna do that instead if you look way inside there you can see that
wire with a green end on it that is for the sensor I'm just going to reach
in there with my hand and unplug it and I bolt it and put the new sensor in
without actually removing the starter because I don't feel like taking half
the car apart because GM engineers have their fingers so far up their rear ends
they're coming out of their mouths no I can't tell them this because I can't
even see it I'm putting my hand in there blind I can't see what's going on in
there but I'm using one of these ten millimeter gear wrenches with the ratchet
and head so I can get in an angle to get to ten millimeter bolt off so I can
on both the bolt it holds a sensor in place here's a new sensor itself when
it's bolted in there's a ball pulled in and where I'm bolting that then we got
to get this out and as you can see there's a seal it always gets stuck so
we got to pry that out after we on bolted and here's a giant screwdriver
pry bar I'm going to use of that once we on bolt there's the old sensor popped
out and as you can see our prayer it's really hard to get to focus it in
because there's not much working room there it is there's a new sensor it's
popped back into the hole we just have to put the bolt in zoom out you can see
it's at a really horrendous place to get to as you can see here the only way you
can get it in with this shiny little gear wrench barely anybody can get
your hands in there so I can't film it but it gets it nice and tight just make
sure you have one of these gear register go in there here it is
after it's done its job it can get in just about any position with a swiveling
head then of course as you can see here you got to make sure you got the
electrical connections snap back in we're getting focused there it is now
it's plugged into the side so there's a sensor there's the plug and it can work
then we got to put the wires on here and put the bolt on to hold the cables on
and then of course we have two snaps other way around too and of course we
got to put the two bolts back on hold the starter in place through my hand
then use the wrench put the battery terminal back on get it nice and tight
we don't want to come off that's nice and tight but we're not gonna jack it
down just yet cuz hey maybe something's loose are not working we're gonna try it
while topping here before we jack it down so that we can jack it down slowly
and take it for a road test and away we go
it's cold sideways got a lot of power down so the next time your car randomly
dies pray that it's as easy as a fix of this one of just replacing the
crankshaft position sensor because now you know how it's done and in most cases
they're not as big of a pain in the butt to do as this corvette is
come on stupid thing, so if you never want to miss another one of my new car
repair videos, remember to ring that Bell