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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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
Engine Running Problem
Truck fixed itself in the video, ran fine after that and then I got rid of
Truck is a 1992 Chevy K1500 5.7L TBI
This got me stumped. This truck has never had any problems before, and has
sat for extended periods of time with no problem. It sat for a couple
months, has had a tune up (coil, cap, rotor, plugs, wires and a fuel
filter) done within the last year. Also had a new fuel pump put in it when
all the other stuff was changed. After sitting for a couple months it
started acting up like this, stalling out in the road when I stop and
everything. Took the cap off and everything was clean, nothing was wet. All
the wires were seated properly and in good condition, plugs looked good, a
little rich but not bad. Then when I go to take video of it it clears right
up. Now it is just intermittent.
Do you think it is just water in the fuel or something?
Chevrolet 1995 Z71 Silverado K1500 350 Cold Start and Walk Around
This is my 1995 Z71 Chevy Truck, cold start with new fuel pressure gauge
and completed ultimate TBI mod. Enjoy
350/5.7L TBI w/Ultimate TBI mod
Tbi Swirl Torque spacer
30psi Glow Shift psi gauge, running at about 17-18 PSI
Flowtech shorty heads w/ 3inch collectors
3 inch Y pipe
3 inch highflow Walker cat converter
Straight pipe to single out passenger side 3 inch. (Stock Look).
NEW! (PDF) Link to my Grille Guard!!
GMC / SILVERADO pickup quick fuel pump fix.
After dropping the tank twice to replace my fuel pump (which is a bitch of
a job) , I tried this. Removing the bed can be even worse. After thinking
about it, I should have used air or electric sheet metal nippers to cut 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
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.
How to Replace An Electric Fuel Pump
Thanks for watching! Please comment, rate, & subscribe. This video is how
to replace an electric fuel pump inside the fuel tank of a 1997 Chevrolet
GM Troubleshooting Part 5 - Fuel System including filter, pump, injector, regulator
This is part 5 of a multi part video series about how to troubleshoot any
ignition, fuel injection or timing issue. I describe the fuel system and
what I did to test it. specs referenced in the video: fuel pressure (in
PSI): TBI (9-13), MFI (41-47), CMFI (58-64), CSEFI (55-61). Those
pressures are for key on, not running. When running normal range is
3-10psi less for all injection systems. Injector resistance (in ohms): TBI
1.16-1.36, MFI (11.6-12.4), CMFI (1.37-1.77). In the video I forgot to
mention it is fairly difficult to bend the spider legs of the new injector
unit so they fit in the intake holes. Pay attention to the way the
original was installed (legs going over/under the nut kit lines) and try to
replicate the original routing. Oh... and I forgot to mention that if you
have a fuel lean condition, spray quick start in the throttle body and see
if it starts... if it runs on quick start, you have proven your condition
is a lack of fuel.
UPDATE Dec 8_2011: I still have the 2 moulded fuel injector lines (new
never used) and I want to sell them... if you need these lines send me a
private message and we can work out a deal. Thanks.
SAFARI FUEL PUMP REPLACEMENT SHORTCUT
Had my van break down on me today, the fuel pump died. So i repaired it as
quickly as possible. The Van died at 11:30am... tow truck took over an
hour. it was in my driveway at 1:30pm. I went to the part store and came
back. Started working on replacing it at 2pm. by 3:15pm it was running,
That's not all bad in my books! I know its not traditional but what i need
it will do just fine.
How to Install E3621S Fuel Pump Sender Assembly in a 1988 Chevy GMC 1500 Truck
95-88 CHEVY & GMC C, K1500/3500 SERIES PICKUP 262 (4.3L), 305 (5.0L), 350
(5.7L), 454 (7.4L)
This video is about how to install an intake fuel pump sender assembly
E3621S on a 1988 Chevy / GMC truck. This sender assembly also fits many GM
trucks from 1988 to 1995. 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.
Pops' 1953 Bare Metal Chevy
Iaccino Fabrication & Customs in Sylmar, CA, has been metal working this
1953 Chevy truck for Dennis & Oliver Porter. GrinderTV caught up with it
before it gets shipped out for paint and interior.
Music: Reckless Ones Dead and Gone