What should the fuel pressure be on a 2002 Chevy Silverado?

What should the fuel pressure be on a 2002 Chevy Silverado?

For those of you not familiar with the LS1 fuel system, a typical working setup should run 58 psi of base fuel pressure, where as ours was around 52 and would drop well into the 40s under mild acceleration. What should the fuel pressure be on a 2002 Chevy Silverado? 58 Psi

What happens if my Chevy Suburban fuel pump goes bad?

If your Chevy Suburban’s fuel pump goes bad, no fuel (or not enough fuel depending on whether or not it’s out all the way) can enter the engine. Without gas your Suburban will not run at all. With that in mind, most of the symptoms of a bad fuel pump revolve around the vehicle stalling out or not running at all.

How much fuel pressure does a 5.3 LS need?

Spec for the 5.3 is 55-62 psi according to the Haynes manual. Keeping this in view, what is the correct fuel pressure? Fuel Pressure For example a carbureted engine typically requires between 4 to 7 psi whereas a typical GM LS engine runs on about 58 psi.

What should fuel pressure be when engine is off?

Key off engine off 48 psi. Engine acceleration jumps to 45 for a second and drops back to 42. Check the pressure as soon as you turn the key to run. It may drop a little as soon as the pump shuts off. With return-style fuel systems the pressure will be 8-10 psi lower when it is running depending on your engine vacuum.

What should the fuel pressure be on a Chevy Silverado?

If you want to save some bucks on this purchase take a look at my recommendations here: Where To Buy A Fuel Pressure Test Gauge. FUEL PRESSURE SPECIFICATION: The fuel pressure specification for the 1999-2006 4.8L, 5.3L, 6.0L Chevrolet Silverado (Suburban, Tahoe) and GMC Sierra (Yukon, Yukon XL) is 55 to 62 PSI. Flex fuel engines: 48-54 PSI.

What’s the fuel pressure on a 1999 Chevy S10?

I checked the fuel pressure in my 1999 4.3 Jimmy, 55 psi, jumps to 60 when I blip the throttle. I’ve also replaced the fuel pressure regulator, no change. I have not done a dead head to test the pumps maximum. My S10 experience would be to expect 70+ psi. What say the masses? Not sure what this means in real life.

What’s the fuel pressure on a 99 5.7L?

Not sure what this means in real life. My 99 5.7L was always a little below the low end of the fuel pressure specs – even with a new GM pump (still ran fine). Thanks for your reply. Key on, engine off for my truck is 55 psi. Driving is 45 psi. I just can’t believe 45 is enough for this engine.

What is the correct fuel pressure, 5.3 engine?

My 99 5.7L was always a little below the low end of the fuel pressure specs – even with a new GM pump (still ran fine). Thanks for your reply. Key on, engine off for my truck is 55 psi. Driving is 45 psi. I just can’t believe 45 is enough for this engine.