How To Diagnose A Fuel Pump Failure - EricTheCarGuy
I had the privilege of visiting Airtex, and while I was there I spoke with
Shane Neuman about diagnosing a faulty fuel pump. In this video we go over
the basic steps of diagnosing a faulty fuel pump. So if your vehicle isn't
starting and you suspect a fuel pump problem, here are some steps to follow
to confirm your suspicions. Another 'quick' test is to bang on the fuel
tank and then try and start the engine. Sometimes this works, just don't
bang too hard, you could damage something.
Airtex diagnosis webpage:
Here's a link to an article I wrote on diagnosing No Starts that you might
also find useful:
The best place for answers to your automotive questions:
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Due to factors beyond the control of EricTheCarGuy, it cannot guarantee
against unauthorized modifications of this information, or improper use of
this information. EricTheCarGuy assumes no liability for property damage
or injury incurred as a result of any of the information contained in this
video. EricTheCarGuy recommends safe practices when working with power
tools, automotive lifts, lifting tools, jack stands, electrical equipment,
blunt instruments, chemicals, lubricants, or any other tools or equipment
seen or implied in this video. Due to factors beyond the control of
EricTheCarGuy, no information contained in this video shall create any
express or implied warranty or guarantee of any particular result. Any
injury, damage or loss that may result from improper use of these tools,
equipment, or the information contained in this video is the sole
responsibility of the user and not EricTheCarGuy.
GM Fuel Pump Relay Testing
For more on fuel pressure testing, go to my website at
1999 Chevy Suburban with no fuel pressure. The following is covered in this
1. How to test a fuel pump relay in a power distribution box.
2. Power side switched circuit design description and operation.
3. Bias voltage on an output. How and why is it used.
4. Fuel pump power and ground testing.
5. How to manually jump a fuel pump from the fuse box
6. How to measure fuel pump current flow.
GM no start no fuel troubleshooting
visit me @
In this video i give an example of one way i go about trouble shooting a no
start issue when i have limited resources. on a 95 Chevy Tahoe
This isn't how I usually go about it however I wanted to give an example
of what you can do with just the basic tools and schematics to trouble
shoot a no start issue hope you enjoy
GM Pass Key II Malfunctions: Bypassing V.A.T.S System
Your car won't start? SECURITY light steady lit or flashing? More then
likely it is the Vehicle Anti Theft System (V.A.T.S) at fault. Over time
the resister pellet imbedded in your car key wears out from years of
inserting and removing from the ignition lock cylinder. Here is a cheap way
to bypass it, so you can get back on the road.
1999 GMC Yukon SLT Start Up, Exhaust, In Depth Tour, and Short Drive
In this video I give a full in depth tour of a 1999 GMC Yukon. I take
viewers on a close look through the interior and exterior of this suv while
showing details, over viewing of features, and noting unique styling cues
to the vehicle itself. I also show the engine and the details of it, start
it up and see how it sounds under acceleration. A thorough tour/review of
this suv designed to give others a greater overall appreciation of the
GMC and CHEVY truck easy fuel pump fix - make a hatch
I was on my way to the dump one day and my fuel pump went out.
Frustrating... This is my aircraft mechanic way of fixing my fuel pump.
Airplanes have lots of hatches. You don't have to take the wings off an
airplane to get to the fuel pump.
Some people don't like the idea of cutting a small square in their bed and
that's ok. But I see people modifying their trucks all the time for purely
cosmetic reasons and some of those mods actually make their trucks less
useful so I don't think a purely practical modification is out of line.
On these GM trucks you can scoot the bed back or drop the tank to get to
the fuel pump. Or just make a hatch. Rivet on some tabs and put the piece
you sawed out back on with some sealant. If you have a bed liner nobody
will know but you. Shoot, chrome the hatch and be proud of it.
Now if your $60 ebay fuel pump goes out again it's a 15 minute fix instead
of a 4 hour dirty tank drop. And no need for the $400 OEM pump because
you're scared to go through the hassle of dropping the tank again.
When I took the pump out it was actually just the flex hose that takes the
fuel from the pump to the top of the tank that had cracked. But that OEM
pump was always very noisy so I chucked it and went with the cheapest pump
on ebay which is still going strong after a couple years and is completely
This is a 98 GMC Z71 extended cab 3 door 4x4 but this will work for a lot
Chev / GMC Misfire, poppet injector diagnosis, troubleshooting and replacement
http://www.wellsve.com/ This video demonstrates how to diagnose a sticky
poppet injector utilizing scan tool and 5 gas techniques. The upper and
lower intake are removed and replaced. The distributor cam sensor retard is
re-synced using a scan tool. The re-sync also needs to be performed at
times when a P0340 trouble code sets.
"The information presented in this program is based on a specific
diagnostic case and might not directly apply to the vehicle you are
repairing. We do not represent or warrant that the information presented
is complete or error free. Please take all safety precautions. We
disclaim any and all liability for losses, injuries or damages in
connection with your repair."
How to Install Fuel Pump E3972M in 1998-2000 Chevy Tahoe, GMC Yukon
2000-99 CADILLAC ESCALADE 350 (5.7L)
2000-98 CHEVY TAHOE, GMC YUKON 350 (5.7L)
This video is about how to install the fuel pump modular assembly E3972M in
a 1999 GMC Yukon. Airtex is committed to providing the most up-to-date,
in-depth fuel pump replacement information that professional technicians
need to diagnose, repair and install today's complex fuel delivery systems.
Airtex is the only U.S. automotive aftermarket manufacturer that designs
and builds electrical AND mechanical fuel delivery system components,
including modular reservoir assemblies, electric fuel pumps, mechanical
fuel pumps and in-tank sender and hanger assemblies, for a full range of
car, truck, fleet and specialty vehicles.