fuel pump or eleictrical

Jon Cash

Asked by Jan 08, 2016 at 06:10 AM about the 1999 Chevrolet Blazer 4 Door LS

Question type: Maintenance & Repair

Hi I have a 1999 Chevy blazer that has me
puzzeled ..I bought it used not running ..trying to
repair it and found that the fuel pump is not
running at all ..relays seem to be working fuse is
good ..no pressure to access port ..I've got two
blazers. .1999+ 2001 ..I've taken the fuel pump
from the other and still same thing no run on
pumpn am I missing anthing are there any wires
that I need to trace please help ..thanks guys

4 Answers


Ok yes. No power back to the fuel pump. Usually the connectors go bad, either need to be cleaned or replaced. Use a test light for check power. Relays are another thing, may just want to replace.

Jon Cash

Rowefast ..will secutry disable the fuel pump ...when the key is out of switch security light flashes steadly ..when key is in with switch on postion it does not ...when trying to start it will flash again ...I heard about the pass lock or something ...new fuel pump and non working pump ..


Yes possible something with the security. Unfortunately I only know how to turn them on and off with the FOB. If it is activated, the pump will not run.


I see you posted a new question, good. I won't respond so somebody who know security will respond.

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