what would cause no fuel pressure
25

Asked by tautog Mar 26, 2015 at 02:04 PM about the 2001 Chevrolet Blazer LT 4-Door 4WD

Question type: Maintenance & Repair

I was having problem starting, changed fuel regulator. No pressure. Then fuel pump and filter. Still no fuel pressure (0 psi) I can hear the relay click and pump going.

2 Answers
60,465

Andrew answered 9 years ago

Go down to the filter and see if it's coming out. Then for the hell of it if that didn't work take the fuel lines off the injector and see if it comes out of the return. Idk if it's possible but maybe the lines got crossed

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335

mlejeune answered 9 years ago

Sometimes the pump will turn on but not give out enough pressure. This happened to me. This could be fuel lines clogged or pump.

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