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Stock's Underhood Specialists presents
Why using the correct tools
is essential
even when doing a simple oil change
Discovering an unusual engine oil leak
Hi. My name is Paul Stock.
I've been a shop owner for twenty eight years and an ASE Master Certified
Technician for thirty five.
I love caring for my client's vehicles and helping them get the greatest return on
their investments.
This video demonstrates
what can happen when the correct tool is not used.
This Toyota Corolla was towed to us because
it was leaking massive amounts of engine oil
after recently having the oil changed.
The engine was nearly four quarts low.
A visual inspection did not show the usual leaks from a recent service, such as a loose
drain plug
or filter,
but the back of the engine and under carriage were totally soaked.
So we committed to starting the engine
and seeing where the engine oil leak was actually coming from.
The following video will give you a picture of what we saw.
Okay start the engine
So,
what exactly happened?
This Toyota no longer uses the typical spin-on filter.
They're now using a cartridge-style filter
that has a screw-on plastic cap.
This plastic cap requires a special tool to remove and install.
However, the previous service facility used a pair of pliers to
service it.
This broke the edge tabs off (left claw marks)
and cracked the cap.
This cracked cap ended up being an obvious and severe leak,
but it could just as easily have been an undetected dripper.
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