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GM Tech (Cam)
GM Tech (Cam), Chevy Technician
Category: Chevy
Satisfied Customers: 15181
Experience:  GM Grand Master Technician 2007. 14 years experience.
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I have a 2004 chevy trailblazer 4.2 starts then turns off

Customer Question

i have a 2004 chevy trailblazer 4.2 starts then turns off after about 5 seconds we have replaced the fuel pump also it will stay running on starter fluid.?
JA: What confuses you?
Customer: what could be wrong?
JA: Sometimes things that you think will be really complicated end up being easy to fix with a Chevy. The Chevy Mechanic I'm going to connect you with knows all the tricks and shortcuts. Tell me a bit more about what's going on so he can help you best.
Customer: it has a new fuel pump but still wont stay started unless we use spray
JA: Are you hoping to fix this yourself?
Customer: yes
JA: Great! What have you tried so far?
Customer: new ful pump and filter
JA: Is there anything else important you think the Chevy Mechanic should know about your Chevy?
Customer: fuel
JA: OK. Got it. I'm sending you to a secure page on JustAnswer where you can place your fully refundable $5 deposit (plus $13 after the Chevy Mechanic responds). While you're filling out that form, I'll tell the Chevy Mechanic about your situation and connect you two.
Submitted: 9 months ago.
Category: Chevy
Expert:  Jerry Newton replied 9 months ago.

Is the security light illuminated on the dash?

Customer: replied 9 months ago.
NO
Expert:  Jerry Newton replied 9 months ago.

OK. Do you have a fuel pressure gauge? A new fuel pump does not necessarily mean a good fuel pump, I'd want to verify the fuel pressure.

Customer: replied 9 months ago.
WE HAVE GOOD PRESSURE WE HAD GOOD PRESSURE ALSO WITH THE OLD PUMP.IT STAYS RUNNING ON STARTER FLUID.THE RELAY AND FUSE IS GOOD
Customer: replied 9 months ago.
ANY IDEAS.?
Customer: replied 9 months ago.
YOU STILL THERE
Expert:  Jerry Newton replied 9 months ago.

Sorry, had to step away from my desk for a few minutes.

Good pressure: I'm looking for a number, what's the fuel pressure?

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