1999 Chevy Tahoe 5 7L fuel pressure regulator

[@sandragarcia3520]

I have a 2000 cadillac escalade and i could not find pressure regulator at all and now i know why it is inside i this has helped me a lot. thank you so much.

[@_BAD_MERC_]

Power to the people!!! Excellent tutorials like this are a great reference for any DIY person and enough for a serious head start on getting experience, knowing your vehicle and above all - saving MONEY!! Thanks for your time and effort!

[@MultiRambo15]

Thanks a lot for the video! I have my plastic cover so I can move it but can't lift it. Had to watch this again to see if you removed the fuel lines on top or not. Must be caught on something I don't see. Thank again for the helpful vid!

[@gunns8412]

yes, you'll have to remove the two fuel lines on top of the manifold to remove it

[@gunns8412]

Big trucksdd25: Mine didn't have alot of the problems you mentioned, but the bleed down on the pressure lead me to believe the regulator wasn't holding presssure. My bleed down was almost exactly the numbers you reported in your posting from 60 to 10 in seconds.

[@leeswier9776]

Thank You very much! I appreciate you taking the time to make this simple easy to understand video and share it with everyone. This helped me massively thanks again!

[@graysonjohnson4746]

I've got a 1999 Chevy suburban and thanks for the help

[@TheKc26059]

thank god!!! I could not find this guy for the life of me!!! thank you!

[@gunns8412]

That is why I posted it...No mention of it in the auto manuals, no mention of it at the parts counter at the local auto part store. It's almost as if it got missed or forgotten about. Why wouldn't a fuel pressure regulator be something requiring repair at some point? Frustrating to say the least, glad you found my post helpful.

[@gunns8412]

I'm not 100 percent certain, but I believe the P0300 code is a generic misfire code. It could be caused by a fuel issue: dirty injectors, water in the fuel, possible bad fuel pressure regulator, or a spark issue ie: distributor cap, rotor, bad spark plug(s), bad spark plug wire(s), timing. sometimes an O2 sensor will cause a misfire, but usually there is a code generated specifically for a bad O2 sensor.

[@davidrethmeyer3800]

Thank you for taking time to show this .

[@777goldcoast]

I appreciate your video. Only wish you recorded more of the process of removing or even putting them back. Thanks just the same.

[@gunns8412]

Juan, No on both, if the regulator is bad, the pressure will drop off, and you won't need to bleed or remove a fuel line.

[@larrywilderson7620]

Or if you need to bleed it just pull the fuel pump relay. Then crank it till its stops getting the fuel.

[@michaelmuir3413]

Good video and i found the answer to my exact situation by reading the comments

[@gunns8412]

once it's running does it run okay? it's just slow on start up? You have been able to see the fuel pressure drop? if so, I think it could be the fuel pressure regulator. It was confirmed with me just by turning the key, but not starting the vehicle. The fuel pressure jumps up once the key is turned on, but then drops quickly. I had a fuel pressure gauge hooked into my main fuel line I rented from the local auto store to verify this. Good luck

[@Chuckwitdabox]

I have a 99 tahoe If the fpr goes bad would it cause my truck to cut off while im driving and also keep it from starting. I have replaced crank sensor, fuel pump, distributor, timing chain plugs and wires.

[@777goldcoast]

Did you change the gasket on the part you took off to get to the fiel pressure regulator?

[@larrywilderson7620]

99 yukon. Started chugging like it was starving for fuel at take off in drive but would clear up if down shifted to first on take off somewhat but finally stopped getting enough fuel to start. Checked relay, pulled filter and was getting some fuel there but didn't seem like much pressure. Not sure if its pump, regulator, or?. It will start if I pour a little down the intake. Pump is making loud winding noises but it seems inconsistent each turn of the key.

[@SkilledEddie]

I got a 1997 chevy tahoe where i think my fpr is shot so i gotta do this. Im also gonna convert the spider injection to the updated MFI injection which i recommend everyone should do who has these type of trucks. And if you have to go through all that hell to get in there replace all the gaskets you can so you don't have to do it again.

[@ADVENTUREJUAN]

When changing the fuel pressure did you first bleed the gas out? An did you disconnect the fuel line?

[@smakin08]

Very helpful video I'm glad i watched it.

[@rosarioperez6784]

Have a 99 tahoe repalced the fuel pump 3 times when new works good but after a couple of weeks it dont want to sart could it be the fuel regulator?

[@NickofAlaska]

Susie Cantu Absolutely could be the fuel pressure regulator. If your not sure, rent a fuel pressure gauge and connect it in line off the fuel filter under the driver's side rocker panel. I don't remember the exact pressure the Tahoe is supposed to hold when the key is turned "not started" but you'll know it's the fuel pressure regulator because that pre-start pressure that kicks from the pump won't hold. After a few seconds, it dumps down to no pressure instead of holding the pressure for when you actually twist the key the rest of the way to start the Tahoe. Hope that helps. Good luck

[@Ripcurl552002]

There is no other video on KZbin showing 1999 Why not show form the beginning how to do the job? A 1998 is the only video I can find in 2021 and it is a little different setup. I have a bracket that goes over my ignition coil. I have the nuts off at ignition coil but can't get the back side of bracket off, no play in bracket and it's keeping me from the manifold nuts/bolts underneath the bracket.

[@billundblad3480]

perfect. all I needed to know.

[@matthewcooper9014]

awesome thank you. I am having slow starts and am losing fuel pressure . when it's warm starts fine have fairly new fuel pump. does this sound like pressure regulator to you ?

[@Delisa0711]

That's how mine is but mine only starts when putting gas in the intake directly but low pressure and it does often as well

[@deannamaselli7297]

before I replaced the fpr on my 99 tahoe, it was temporarily starting it with starter fluid sprayed into the mass airflow. from another video, I learned it was the FPR that was the real issue. yesterday my car wouldn't start. it turned over but would die immediately even when I tried to give it gas to keep it on. I bought the fuel pressure regulator and replaced it. now as soon as I turn my car on it makes a loud thump know noise instead of turning over. it's just one big loud noise. scared to keep trying. I don't know where to start. any suggestions?

[@larrywilderson7620]

Did you figure it out? Bad relay or possibly the wrong relay?

[@mattspott]

Thank you, that was helpful to see

[@blackericdenice]

I'm trying to teach my 10 year old nephew to reach through the throttle body hole and unhook the fpr but he think something will try to eat his hand.

[@gunns8412]

That's funny. I don't know that you can get to it with out pulling the manifold, but good luck.

[@blackericdenice]

gunns8412 Just replace my 3rd. fuel pressure reg 3 weeks ago. This one I got off ebay for $30. Its a Delphi, hope it last longer. I think the reason they go bad so quickly. Is the high fuel pressure.

[@blackericdenice]

gunns8412 I think it's time for a new fuel pressure regulator. I scan the computer with HP Tuner and it's taking away fuel from bank 2. Also when I start the engine hot. It run raw for a short time.

[@blackericdenice]

I had to replace the whole Spider unit. 4 lines were wet. It's not taking away fuel anymore.

[@hellhellya1]

Remind him there's a spider in there.

[@tazzzytazus]

gunns I noticed you didn't put a vacuum hose on your regulator........ Doesn't it require one? And does it connect to the fuel sensor which mounts on the plastic manifold cover?

[@gunns8412]

It's sits exactly as it is, just plugs right into the side of the manifold there as shown in the video. The bad regulator was just releasing the fuel pressure out of where you would presume a vacuums hose would be attached. I think in this particular application, the fuel pressure regulator only reacts in any case the fuel system is over pressured.

[@rising8yrs377]

I have a problem with my 97 TAHOE.. it's refusing to start..I've sprayed throttle body cleaner and still no start.. I've checked the fuel line for pressure, it don't even shoot out like a pressured hose.. can it be my fuel pressure regulator??

[@gunns8412]

sounds like yours is more than likely could be the fuel pump. Being that you cracked the line and turned the key on and no fuel sprayed out. Although as a fore thought, double check the fuses and fuel pump relay. I had a buddy replace the fuel pump and learn later it was nothing more than a 30 dollar fuel relay.

[@firemanjim324]

@@gunns8412 PLEASE help me if you can. My 99 tahoe won't start. Has spark. I replaced ignition switch harness, ignition switch, ignition module, cam and crank sensors. ...... Fuel pump is working great. (only a year old too) I have NO pressure at the pressure port on the black line . (Return line going to little box, then to tank ) You can tell it's TRYING to start but won't. It sat fir about 5 weeks. The. Started and ran fir 8 days....niw same shit... No start.... Does this sound like the fuel pressure regulator? I only have one vehicle and can't miss work. Walking 6 miles to work SUCKS.....

[@NickofAlaska]

@@firemanjim324 I'm sure you've resolved the problem by now. Sounds like the fuel pressure regulator. Did you fix it?

[@larrywilderson7620]

Im in the same boat. Was intermittent(chugging like it was missing on take off). It would run great when cold then proceeded to get worse as it gets hot outside. Limped it around and then it died while driving like it ran out of gas. Added fuel no luck. Tried priming it, will fire but not stay running. If cycling the key/pump sometimes it will fire slightly but not enough to start. Figured it must be pump, relay, or regulator.??

[@VeteranJewels]

Thank you so much

[@Sobercrow]

Thank you

[@atmosphere6601]

1998 Yukon 5.7l... dual exhaust, one exhaust huffs & puffs. The other flows fine. Engine light flashes with code reading P0300. Have any ideas what to address??

[@bradleypoppe8928]

Im haveing issues with my 98 ck1500 i have put 3 delphi fuelpumps in 2months im going to tru a bosch. But my coded showed plugged catylitic converters i cut them off and truck ran great for 2days then the code came up for whats called the spider injector system

[@purestress2]

wouldn't you have to put a new gasket to be safe for leaks?

[@NickofAlaska]

purestress2 it's not the intake manifold, it's the plastic throttle body manifold. it really doesn't retain under pressure fluids like an intake manifold does, the gasket for the throttle body manifold is a reusable rubber one. Although if you damaged the old one you may need to replace it.

[@purestress2]

Nick of Alaska Oh ok cool and Thanks for the reply. Going to try this.

[@Higusky]

Thanks soooo much man! HELPED ME SOOOOOOOOOOOOOOO MUCH

[@Iamdjquietstorm]

THX ,I WAS JUST LOOKING FOR MINE ON MY 99 YUKON...ENGINE WONT START AND GETTING 60PSI ON PRESSURE GAUGE

[@matthewcooper9014]

did you have to replace the manifold gasket ?

[@gunns8412]

No, I was able to reuse the existing rubber gasket with no problem.

[@louiegary]

How did you know it was bad?

[@gundamrx792]

i have the same engine in my 99 express having trouble starting it up after it sits overnight replaced the pump i fear that this is my issue right here

[@martinwilkins8196]

YOU did not do anything! Just added to the nothing garbAge.

[@jorgepizarro3327]

will this work for a 2000 Cadillac Escalade

[@gunns8412]

jorge pizarro, what type of motor does your Cadillac have?

[@jorgepizarro3327]

gunns8412 wow I never got a notification for this I just happen to go back in here because last year it wasn't my fuel pressure regulator it was actually the fuel pump. but now it's cranking but it won't turn over I have a fuel pressure leak down and it's going down to zero after I turn the truck off. so now I'm thinking it's the fuel pressure regulator

[@jorgepizarro3327]

5.7L

[@larrywilderson7620]

Any luck? Possibly bleeding back to the tank? May have a backflow check valve in the pump inside the tank?🤔

[@jorgepizarro3327]

@@larrywilderson7620 it ended up being the multi-port fuel injection spider.I replaced it with the new unit and it worked perfect

[@awardssteaming4304]

Couldn't find mine for anything!!

[@michaelmuir3413]

Thank you

[@deannamaselli7297]

before I replaced the fpr on my 99 tahoe, it was temporarily starting it with starter fluid sprayed into the mass airflow. from another video, I learned it was the FPR that was the real issue. yesterday my car wouldn't start. it turned over but would die immediately even when I tried to give it gas to keep it on. I bought the fuel pressure regulator and replaced it. now as soon as I turn my car on it makes a loud thump know noise instead of turning over. it's just one big loud noise. scared to keep trying. I don't know where to start. any suggestions?

[@gunns8412]

If all you did was replace the Fuel pressure regulator, and now it's making different strange noises, it might be worth it to double-check your install, make sure you have everything put back together correctly. I can't think of what a "thump" could be maybe a miss fire, if you're trying to start it and each time it turns it thumps? Did you disconnect any spark plug wires while you were working on it?

[@larrywilderson7620]

Or possibly a dead thump like the starter? Or in the intake? Like Back firing?

[@awardssteaming4304]

Thank you