Mechanics

WONT START

2001 Chevrolet Blazer • 6 cylinder 4WD Automatic • 150,000 miles

2001 blazer 4.3 vortec why wont my truck start unless I spray carb and choke cleaner in it but once I get it running it stays running and will restart unless it sits fora couple hours then I have to do it again
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Hillbilly
January 23, 2011.




Check the fuel pressure if its within specs if okay test the fuel pump relay and fuel pump and oil pressure sending unit-

Rasmataz
Jan 23, 2011.
Fuel pump is brand new and is right pressure and I guess im cofused why the oil sending unit might cause it and how do I check it?
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Tiny
Hillbilly
Jan 23, 2011.
Do you hear the fuel pump come on for 2secs when you turn key On? If not check ECM B fuse 20amp, fuel pump relay and the computer control of the fuel pump relay circuit-

Rasmataz
Jan 23, 2011.

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