Fuel pump

20

Asked by Apr 02, 2016 at 02:47 PM about the 2003 Chevrolet TrailBlazer LT 4WD

Question type: Maintenance & Repair

I have just recently put on a new fuel pump on my trailblazer and I'm getting my fuel to
move through but I have a blockage up by motor which isn't allowing gas in to start my
truck what can I do to fix my problem lem and get my tuck running

5 Answers

4,785

So most likely it is 2 things. The injector ports are clogged (which happens over 13 years of operation, and need to be cleaned, or the second option, is that there is air bubbles in the fuel line. Just like when you bleed the brakes for a shoe replacement, the fuel system also needs to be clear of pockets of air to avoid injector misfire or failure. Are you getting the SES or CE Lights?

1 of 1 people found this helpful.
20

There are no lights coming on, I have fuel pressure passing through the fuel rail, but no pressure in the upper pressure port

20

Do you think it's the injector port clogged if so do I buy a new one to replace that or can I unclog it?

4,785

Hello Again Tequilla-I am sorry if my explanation wasnt more clear. So there is an injector cleaner you can obtain from your local auto parts store however, if there is so much build up, corrosion or damage to the injectors, you could pull a good looking salvaged injector and swap them out.

1 of 1 people found this helpful.
69,655

Also may be the fuel pressure regulator gone bad.

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