SOURCE: Chevrolet 2500 Not Running, May Be Fuel Filter Sensor
That
red wire is only for the fuel heater.will not cause a no start.try pumping
the primer pump on top of the fuel flter hsg. but first open the bleed
screw,which is black plastic also located on the top.this will eliminate any
trapped air that might have entered the fuel intake system.if the pump does
not get firmer and harder to push, then you have a leak in the fuel supply
lines or the ck valves in the fuel filter hsg or stuck open. Still no start
have it scanned to ck fuel pressure while cranking.it should be close to 5000
lbs
SOURCE: engine looses power going up hill, no check engine light at this time.
How old is the Catalytic Converter, sometimes they will get clogged up and affect performance.
Good luck
SOURCE: Chevrolet 2500 Not Running, May Be Fuel Filter Sensor
if it dont have good compression it will not start check the comp and make sure there no water in oil if fuel pressure is low it will not pop the injector open try some starting fluid
SOURCE: suburban low pressure from fuel pump
Try checking the fuel filter and then the pressure regulator on the rail. If the pressure regulator is bad it will not let the pump push enough pressure. And if the filter is clogged then it will also not let the engine get enought pressure. I have seen pumps starter going out by losing pressure. I have also seen aftermarket pumps quit after about a week unles you did not change the whole assembly.
Testimonial: "Thanks! I was unaware of the regulator. We did check the filter. Great info!"
SOURCE: 2007 chevy silverado 2500 hd duramax shut down
mo me it sounds like low fuel volume i would check my lift pump
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