under hood, on fuel rail which is connected to each fuel injector there should be a valve that looks like a tire valve. That is the shrader valve, test fuel pressure there.
There is a fuel line access port that should be right behind the throttle body. Borrow, rent or buy a fuel pressure gauge and check the pressure at the access port while you're trying to start the engine. Any engine that has normal compression, fuel delivered properly and a spark that is strong and delivered at the right time HAS to run when the starter is engaged. If it's not starting it can ONLY be one of the three.
Have you tried spraying gas intothe breather. Does it have tbi or multi-port? How about the fuel regulator. How much pressure does the fuel rail have ?
well the question is a bit vague but I'll try. Assuming that the battery isn't dead and the starter is cranking fine my first thought would be your fuel pump is shot Chevy fuel pumps are notorious for failure even with low miles I had to replace my brothers fuel pump on his 96 Chevy and it only had 58,000 miles on it. But to know for sure wether the pump is bad or not you will have to do a fuel pressure test. You can test the fuel pressure by getting a fuel pressure gauge and attaching it to the test port on the fuel rail and watching the gauge as somebody tries to crank it over if the gauge reads beetween 40 and 60 PSI then the pump is good if not then replace the pump most likely if pump is bad you will get a reading of 0 to 5 PSI. Hopefully this helps.
under the dash but its not the obd2
It's a possibility. There should be a fuel pressure test port right behind the throttle body. Use a pressure gauge to find out what kind of pressure you're holding. You'll need to refer to a manual to find out what's normal for your engine.
It doesn't have one. To test the fuel pressure an adapter has to be installed between a fitting at the fuel filter and the fuel filter, preferably the fitting feeding into the filter from the pump.
use a pressure guage hooked to the scrader port on the fuel line.
It should be about six inches from the compressor. The large line.
The fuel test port on a 1997 Suburban is on the engine under the hood. It is located near the fuel lines.
It doesn't have a test port. You have to fabricate fittings to tap into the fuel line at the fuel filter to connect a fuel pressure gauge. They probably sell a kit to do that but I made my own.
The fuel pressure relief valve is located Under the Plastic cover on the fuel rail.
The low pressure port on any A/C system will be the the line running from the compressor and going into the evaporator in the passengercompartment. The high-pressure port is in the line coming from the condenser in front of the radiator going to the compressor.
There is an adapter that is put in place of the fuel filter that has a test port that the fuel gauge hose will fit too. Might be able to get one from a parts store.
Are you sure that it's got one? If it does, it should have a screw on cap covering it. The port will be a part of the rail. If not, you'll need an inline adapter to check fuel pressure.
There is a fuel line access port that should be right behind the throttle body. Borrow, rent or buy a fuel pressure gauge and check the pressure at the access port while you're trying to start the engine. Any engine that has normal compression, fuel delivered properly and a spark that is strong and delivered at the right time HAS to run when the starter is engaged. If it's not starting it can ONLY be one of the three.
On a '99 suburban, the low pressure a/c port is on top, towards the back of the compressor, and pointed forward. The high pressure port is there also, just behind it and to the left, pointed straight up.
There's not 1. They sell a fuel pressure Gauge kit that goes in the line up by the throttle body when you remove the fuel line from it. Nother words you will have to splice into the fuel line.