GM TBI low fuel pressure

[@Horner181]

If it wasn’t for you older guys us younger guys wouldn’t know shit.thanks this really helped

[@elitebuildingsolutionllc8736]

Great video. I'm digging into my tbi for almost a year. This week will get into the gas tank. Thank you

[@MojarraMutante]

Man…. This is EXACTLY what happened to mine. I would not have checked it if it was not for this vid. Many thanks, back on the road!

[@sergiocespedes993]

Thanks a lot. I think you just saved from going out of my mind and burn my truck. I have noticed that loosen clamp in the hose, and never thought it was needed.

[@jimhenderson9199]

The technical way to describe that situation that occurred on your truck is to say operation of the system that supplies the fuel is flow limited. Its supposed to be pressure limited as dependent on the fuel pressure regulator which is basically a relief valve that is open during normal operation. What I learned from your video is that I can rent a gauge to check my fuel pressure. Hope it's the regulator stuck open if I have low fuel pressure. At first the fuel pump wouldn't turn on but after fixing the ground connection my truck still won't run unless I pour gas down the inlet

[@dale3990]

Sounds good , been having the exact same issue with my 94 Chevy Suburban k2500, will check that out...cool background music.

[@thomasneemann5618]

thank you very much

[@brianbvachek3219]

Ha! I bet this is why my ol ladies truck takes about 10 seconds to start, and mine with a fresh pump/sender/tank fires off in less than one good ol Mississippi second… Thanks brother!

[@johndunn678]

A cheap easy upgrade for these is to install the pump for 1996-98 Silverado with the 5.7l Vortex v8. It flows more, is better able to hold the factory pressure, and is pretty much plug and play.

[@williemelton7544]

Hey thanks this is a life saver 🎉😊

[@philtolfreeart]

Thanks for the video. Just came here to say, you sound exactly like the sheriff of nottingham from Disney Robin Hood 😂

[@markstewart8171]

Man, I had the same exact rubber hose split on me. I dropped another one in and was looking at the old one not figuring out how it was broke until I saw the split the next day. I fortunately replaced the whole thing all together, don’t like buying off junk cars for sensors and no sense in putting old parts back in the fuel tank as it was a bitch to drop the tank and all. Glad to see others finding a 30 year old hose goes bad the same way. Best of luck to ya. Also don’t put a rubber base down under the tbi , figured that out the hard way after paying over 300 dollars for all the sensors connected to it around the tbi. That rubber base and gasket is a joke. Just use the gasket straight to metal.

[@paulferrara9079]

Thank you !! : )

[@LordPente]

Well, I guess I'll check there, too. Thanks for the Vid.

[@mcqueenfanman]

Another way of confirming bleed down issues is do a pinch off test. Put a gauge where the fuel filter goes and pinch it off right after it. Prime the system and it should hold up to 18psi of pressure. If not its bleeding down somewhere, if you don't see or smell gas then its inside the tank.

[@louf7178]

Thanks!

[@shawnhector7931]

Thanks

[@robertfisch4603]

I didn't hear him say he replaced the gas filter. That's what was causing low pressure on mine.

[@CraigB-rw9cu]

Well i got an 1989 put new distributor fule pump.fule sensor and fues new air flow sensor new coil cleaned grounds anf as i got down the road not even a mile it dies wont start back and ill go to the battery and just losein the hot and turn key on go back to battery and move the hot i can hear the pump but no squrt to the injetors untill i shake the hot cable it wont do it all t

[@clintdearman2508]

Or.... just replace the entire assembly and not just the pump itself.

[@jf4872]

Another thing that will confirm for one if this issue exists...fill fuel tank full. Does the issue go away? I bet it does until the fuel level drops below the split line.

[@agele55]

Sorry…but no. As long as the pressure is higher in the line than in the tank, it will simply back feed the tank. Trust me.. I tried that too.