1999 Chevy Blazer 4.3, engine starts, runs about 5 second, dies and then won't start, if you wait 10 minutes it starts and runs fine, this happens once every few weeks/months or twice in one day, no set pattern. have already changed fuel pump, fuel filter and upper intake on top of throttlebody.
You may be having an intermittent failure with the fuel pressure regulator - checking the fuel pressure when the truck won't start may pinpoint this problem. If the pressure looks OK, this same problem can be caused by the ignition system as well (ignition coil or control module).
SOURCE: I have a 1993 Ford
Yes a fuel filter can cause the problem but I would say it's most likely the fuel pump or fuel pump relay. Can you hear the fuel pump running when you turn on the ignition?
SOURCE: WON'T KEEP RUNNING
Check the exhaust compression. Remove the O2 sensors before the cataylic converts and see if it improves. If it does that means your cats are cloged and need to be replaced.
SOURCE: Dies after running about 2 minutes
It's got all the symptoms of a leak in the fuel line. You may want to start backward at the tank and work your way all the way to the carb to find it but it would be surprising if it was something else. All the best.
Greg
SOURCE: 1994 ford ranger interminant fuel pump problems
Loose connection is the problem. It takes petience to find where it is at. Do some wiggling on wires to see where it is.
SOURCE: My focus tdci 1800 ran fine until recently. I was
There are a number of faults I'm aware of with the focus which can cause driveability,cutting out and non start problems.
1 poor earth connections in engine bay, you need to check and clean ALL earth connections in engine bay
2 engine wiring shorts out against EGR valve (but this normally blows fuse F9 (20amp) wiring needs to be repaired and re-routed and secured
3 erratic running and non start (glow plug warning lamp flashes when this fault is present) this is caused by low fuel rail pressure and is expensive to put right you need to check for the following fault codes P0109, P0191, P0251, P1211, P2288, P2291
if one or more of these fault codes are present remove fuel filter and drain contents, inspect for deposits(black with silver particles) if deposits are 11mm you need to remove fuel tank and flush it out.
the following will need to be renewed:
fuel rail, high pressure fuel lines, fuel supply line filter to high pressure pump, fuel return line from high pressure pump to filter, kit protection blanking plugs, kit, leak off pipes, fuel injector clamp bolts, fuel filter, high pressure pump gasket,high pressure pump seal,high pressure fuel pump and timing belt.
I recomed you carry out you diagnosis in this order
Regards
Jim
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