How to check fuel pressure in a GMC Sierra 1500?
You will have to check the fuel pressure at the rail, the test port is ontop driverside about 3/4 the way back. Black cap on aluminum fuel line. The best thing would be to buy or rent a fuel pressure test gauge as it would thread onto this port. If not I’ve used good safety glasses a rag and a screwdriver to check for pressure.
Why does my GMC Sierra suddenly stop running?
Truck suddenly stops running, acting like it’s out of fuel. There is fuel in the gas tank and, I can hear the fuel pump when I turn the ignition on. Is there a fuse, or relay that is maybe causing this to happen?
What should the fuel pressure be on a GM 4.3L?
This is where you’ll connect your fuel pressure gauge (the first photo, in the image viewer, is of a 4.3L, and the second of the V8 engine). NOTE: In case you’re wondering, the factory manual specifies that the fuel pressure for the CSFI system should be between 56-62 PSI. The CPI system’s fuel pressure should be between 60-66 PSI.
How much psi does a fuel pump need to start?
The fuel pump produces much more than just 50 PSI of course.. but the bare minimum the engine needs to start is 50 PSI… so anything less and it will crank for ever before it starts or not start at all.
You will have to check the fuel pressure at the rail, the test port is ontop driverside about 3/4 the way back. Black cap on aluminum fuel line. The best thing would be to buy or rent a fuel pressure test gauge as it would thread onto this port. If not I’ve used good safety glasses a rag and a screwdriver to check for pressure.
Truck suddenly stops running, acting like it’s out of fuel. There is fuel in the gas tank and, I can hear the fuel pump when I turn the ignition on. Is there a fuse, or relay that is maybe causing this to happen?
What should the fuel pressure be at idle?
Fuel pressure should be within specifications when the key is on, then drop 4 to 6 psi once the engine starts and is idling. Note: Some vehicle manufacturers list pressure specifications for both KOEO and idle, while others only list a fuel pressure specification for one or the other.
What should fuel pressure be on GM 4.3L Vortec?
You can find this tutorial in Spanish here: Cómo Probar La Bomba de Combustible (GM 4.3L, 5.0L, 5.7L) (at: autotecnico-online.com ). The fuel system in your 4.3L, 5.0L, or 5.7L Vortec engine needs at least 50 PSI of fuel pressure to start.
What kind of vibration does a GMC Sierra have?
I previously owned a 2013 GMC Sierra 1500 with a 6.2 l engine that developed a vibration after approximately 20000 kms. the vibration was mainly at speeds over 100 km per hour and at 110 km sometimes it would almost make the truck uncontrollable!
What to do if you have vibration in your Silverado?
If you are experiencing a Silverado vibration problem or Sierra vibration issue, it is essential that you bring your vehicle to an authorized manufacturer dealership as soon as possible to be addressed by their service department. If necessary, take the adviser on a test drive so they can verify the condition.
Why does my Chevy Silverado shake all the time?
Other theories focus on U-bolts, adding engine mount shims, checking the exhaust back-pressure valve and replacing the rear axle. On March 30, 2016, a dealer reported a 2016 Chevy Silverado 1500 with a similar vibration issue (NHTSA No. 10852511), saying the truck “has the Chevy shakes between 38 and 70 miles per hour.
What happens if your GMC Sierra has low oil pressure?
One of the most serious issues that can happen to your GMC Sierra ‘s engine is if it ends up with low oil pressure. Low oil pressure will cause the engine to seize up. When the oil pressure light on, it should be assumed that the engine locking up is imminent. We advise not running the engine until the issue can be properly diagnosed.
Can a low oil pressure cause engine to seize up?
Low oil pressure will cause the engine to seize up. When the oil pressure light on, it should be assumed that the engine locking up is imminent. We advise not running the engine until the issue can be properly diagnosed. There are many things that can cause low oil pressure.
What should the oil pressure be in a Chevy truck?
When the truck is at warm idle the pressure should be within this range: 25 – 40 PSI When you are driving at speed the pressure should be within this range: 40 – 70 PSI
What to do if oil pressure drops in 5.3 Vortec?
5.3 Vortec Sudden Loss of Oil Pressure – What to do! If the oil pressure light illuminates while you are driving or you notice your oil pressure indicator has suddenly dropped, it means your engine’s normal oil pressure is lost. If this occurs, you must stop driving immediately and turn off the engine.
When did I change the fuel pump on my GMC Sierra?
I changed the fuel pump on my 1996 GMC Sierra earlier in the year. I cut through my truck bed right above the fuel pump so I would have easier access to it. For the most part my truck has been fine but I have had problems with the ground wire coming from the fuel pump. At first I thought it was just the old rusty bolt that grounds the fuel pump
Are there any problems with the GMC Sierra 1500?
302-horsepower 4.8L V8 4-speed automatic 4WD w/low range service traction control light was coming on. The vehicle wouldn’t go over 35 mph. Battery disconnect reset the problem temporarily It was actually a problem with the throttle body. Found out later it was a recall. Replaced coil and plug wire for Cylinder 6.
What kind of engine does the GMC Sierra 1500 have?
Whether you’re going on- or off-road, the Duramax ® 3.0L Turbo-Diesel I-6 engine for the 2020 GMC Sierra 1500 is engineered to be big on capability and fuel economy. Take your pregame party to the next level for family and friends with the GMC Sierra 1500’s available MultiPro Tailgate with MultiPro Audio System by KICKER.