Fuel Pressure Regulator

[RyanbabZ71]

If you have been following my starting issues I just had a specific question. Today truck ran good I started it a bit ago and it wanted to die but it didnt. Got it in the garage (with wax on it ) pulled the hose off the FPR and it didnt seem wet. Came in checked something went back out pulled it off again and gas poured out of the hose. Put it back on checked a little while later and same thing gas poured out of the hose. Bad regulator?

 

Thanks

 

Ryan

[RyanbabZ71]

Thanks

 

Any special tools need to replace the regulator?

[RyanbabZ71]

Just a heads up for anyone with the same problem. There are 2 different regulators. I just went thrugh an ordeal at the dealer. To keep it short I had to make 2 trips to the chevy dealer.

 

12574986 is for the one where the hose connects on the top

17113700 is for the one where the hose connects on the side

 

I needed the 1st one for my truck (2000 5.3)

[RyanbabZ71]

Got it changed. There was a small hole in the filter/screen which I am guessing let the gas by

 

It was a piece of cake changing. All you need is a pair of needle nose pliers (remove clip) and a rag to catch any gas when you pull the old one out. I also used qtips to clean inside there. Also make sure you get it all out. The filter and small O ring didnt come out with the regulator. Had to use a small screwdriver to pluck it out

[RyanbabZ71]

Just a few pictures

 

This is where the FPR is located (Circled Red)

[RyanbabZ71]

Tear in Filter

[dukbludvl]

so, to check it, all you do is remove the clip with pliers and the FPR comes out and if there's fuel in there it needs to be replaced?

 

to replace it, all you do is use needle nose pliers to remove the clip and take out the old FPR, remove the filter and rings, and then install the new ones?

[RyanbabZ71]

No to check it just remove the hose and see if fuel comes out of the vacuum hose.

 

To replace it you need to remove the clip

[MMM]

Got it changed.  There was a small hole in the filter/screen which I am guessing let the gas by

 

It was a piece of cake changing.  All you need is a pair of needle nose pliers (remove clip) and a rag to catch any gas when you pull the old one out.  I also used qtips to clean inside there.  Also make sure you get it all out.  The filter and small O ring didnt come out with the regulator.  Had to use a small screwdriver to pluck it out

 

<{POST_SNAPBACK}>

 

 

 

Thanks for the info Ryan. Maybe you could add this to the tech corner section (with illustrations) for future use. Thanks MMM

[RyanbabZ71]

I was thinking of doing a writeup on this. I am heading out for the holiday weekend now so it wont be until next week.

 

On a side note truck ran good so far today. Seems to be starting much better.

[trout31]

Ryan, How much $ was the part?

[trout31]

This thread was exactly one day too late for me.

 

I had the "slow rough idle". The "runs fine at speed". The "good cold starts" and "hard warm starts". The "P0300 code indicating random misfire".

 

I changed plugs, fuel filter, and PCV valve. Cleaned throttle body too.

 

Was just reading up on how to replace the fuel pressure regulator (because the tube was wet with fuel when I accidentally knocked if off while changing the PCV valve).

 

Then I got nervous when the SES light started to blink instead of burning continuous. The manual said the blink indicated a possible catylytic convertor damaging situation...

 

So I took her to the dealer since I was afraid to keep messing around. (only having time every couple of days to progress to the next step)

 

Guess what the dealer did... Replaced the fuel pressure regulator. Now it runs like new again.

 

Darn I could have fixed this myself.

[RyanbabZ71]

Part was $40.

 

After driving the truck all weekend I must say it ran great. Didnt have any startup issues at all.

[kmtv]

Thanks for this write-up. My local dealership wanted to replace the fuel pump in my 2000 Tahoe 5.3L to the tune of $900.00. I hang around here from time-to-time and knew this was place for a second opinion. My neighbors must have thought I was crazy, standing in my driveway at 1:00 in the morning shouting YES! when I pulled my vacuum line and found gas.

 

BTW, the part number for the 12574986 (which IS the one with the vacuum line at the top, no matter what some of the computer parts lists say) is now 17113536. This is evidently an older regulator style used in the 5.7 on Camaros and Corvettes. $52.17 at GMParts Direct, $128.00 at my local dealer. It will arrive via DHL from GMPD on Monday.

 

Again, many thanks for documenting this.

[RyanbabZ71]

My neighbors must have thought I was crazy, standing in my driveway at 1:00 in the morning shouting YES! when I pulled my vacuum line and found gas.

 

haha First time I heard someone getting excited over a problem. Guess it makes you happy when it costs $50 vs $900.