How To Diagnose A Bad Fuel Pressure Regulator (Andy’s Garage: Episode - 297)

In this video Andy Phillips explains a lot of the symptoms of a bad and faulty fuel pressure regulator. He also shows examples of some of them so you can see the effects. Learn how to diagnose for yourself and save yourself money.

Below are links to some of my videos pertaining to the fuel system..

DISCLAIMER:
The individual featured on the Phillips Vision YouTube Channel identified as Andrew Phillips, also known as Andy Phillips is not a professional mechanic, contractor or certified repairman. He does not have any formal training in the automotive field, or any other trade. He is strictly a Do It Yourself handyman.

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All Do it Yourself (DIY) repairs or modifications you perform are at your own risk. In some cases, even if you perform everything properly, you can destroy or damage one or more things you are working on resulting is costly repairs.

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[petestroup]

If you’re here with a new fuel pump and really low fuel pressure still check your grounds… Was just under my truck all weekend and it was just a crusty ground right at the firewall

[boomcity]

Excellent video! Very informative without the unnecessary hoopla.

[williamb]

Saw this on YouTube.
Had issues with our 08 Avalon not starting, right away. Took several cranks before starting.
Here is how I found it was a bad FPR .
Turn your key...3x to the on position...but do not turn to start the car. What that does...it forces pressure to the fuel rail.
After 3x, start the car. It should crank right away....mine did ...
Changed the FPR ...problem solved !!!

[treythach]

Just replaced the fuel pump on 2001 Accord and still misfire p0300 p0301 p0302 p1399. Before i replaced the fuel pump i thought it needed the fuel filter replaced but it’s all in the gas tank. Wish I’d seen this video before i didn’t have to spend 3 hrs to work on fuel pump replacement ($26 delphi fuel pump not the whole fuel pump from Advance Auto $300+ ). Great video very clear explanation, great quality. Thanks a lot! Happy Thanksgiving 🦃🍁🍽

[louiegarcia]

best diagnosis video on you tube. thanks for your efforts

[essexdrainageltd]

I have black smoke come out my left tail pipe I changed the fuel regulator and I have no more black smoke it did exactly what you said well done thanks 😊

[KIKOANGELESPARZA]

This is a real good and very well explained video, thank you for sharing your knowledge.Keep up your good Deed.

[faronsquare]

Awesome content brother, thank you for the info and lack of talk about weather and geography!😂

[atkinsatkins]

SUPER GOOD video work and SUPER EXPLICIT articulated. Can't thank you enough. Thank you 😊

[alqui]

You're awesome, the best explanation on YouTube hands down.
Thank you so much from Morocco.

[moodlemech]

GREAT explanation! I am chasing fuel pump/regulator/fuel filter because my 2004 Toyota ACR30R feels fuel starved - typically drops out when under acceleration or higher revs. Actually, I can usually accelerate hard OK for the first 5 minutes, but after that I have to stay very light on the accelerator and lose speed up the hills in order to avoid misfiring and dying. Also when it dies completely, I just back off accelerator for a few seconds and then can drive (lightly) again. It doesn't completely stall even though and is an auto. I ordered an OBD, and have measured fuel pressure at 45psi, but didn't check this pressure when engine is off (like you show here). I have had spark plug coils fail before, but they were 1 cylinder at a time, not killing the whole engine, so this feels different.

[confidencemonareng]

A very great a explanation you really have covered what was bothering me. Thanks

[neereshdevraj]

Hi there, you have explained it brilliantly, thanks for the info, learnt a lot on my excessive fuel usage.

[ClatousKaunda-yfkz]

Exactly what u hve said is what experia- on my engine car.

[nickpanhead]

Will the regualator if bad cause the truck not to start

[israel]

I changed the pressure regulator and if fixed the problem. The symptoms were
In the morning cold start the engine would idle poorly like it needed more gas then engine would turn off when I came to a stop. And it would sometimes smell like leaking gas in the mornings. Those are the symptoms

[jackdaniel]

next video..how to check if using aftermarket fuel regulator

[cek]

Thank you. I know what to check and why now. Makes more sense.

[onlyme]

I had 5 leaking injectors of 6 in my 02 toen and country 3.3l was flooding. Replaced them ran well for 2 weeks now I get a crank no start as if I have no fuel. I did a toggle test where I key on off 5 times and it will start right away. If I do 4 cranks it will just about start and fail if I do just 3 or 2 or 1 it won't start at all. So leaning on loss of pressure versus totally dead pump. This vid has helped with my land rover. Now I need to figure how to do my van. As I don't know how to pull the regulator out.

[Dooguy]

If your fuel pressure reg was going bad or was bad. wouldnt your plugs look bad? my front 3 plugs look just about perfect....lil bit of oil down inside and around the insulator...but the eletrode and insulater look tan..and clean. Im getting a 0172 code and my lite is on and my mpg is suffering.