I have a 2007 trailblazer 5.3 liter . I changed the fuel ...


I have a 2007 trailblazer 5.3 liter . I changed the fuel pump because it was not working . Still won’t run . Fuel pump works , fuse and relay good . Use starter fluid and stil don’t fire . What should I check next and how ? Me...

I have a 2007 trailblazer 5.3 liter . I changed the fuel pump because it was not working . Still won’t run . Fuel pump works , fuse and relay good . Use starter fluid and stil don’t fire . What should I check next and how ? Mechanic's Assistant: Has your Chevrolet been stalling? No Mechanic's Assistant: Are you fixing your TrailBlazer yourself? What have you tried so far? Yes . I checked and changed the FSB relay . Changed the fuel pump . Mechanic's Assistant: Anything else you want the Mechanic to know before I connect you? It was running when it quit twice

Automotive Expert
Hello, my name is \*\*\*\*\* \*\*\*\*\* I'm sorry to hear about problem. Ignore phone call prompt and there may be short delay between replies. Fact it doesn't run on starting fluid tells me problem is most likely no spark. Have you tested spark? Have you checked diagnostic codes? Thanks.

Hello
Automotive Expert
Hello. Have you tested spark? Have you checked diagnostic codes? Thanks.
Automotive Expert
Check to see if pink wires to [ignition coils](/topics-ignition-coil-chevy/) have power while trying to start, if not replace the PCM relay 60 under hood. Let me know how it goes or if you run into questions, thanks.

I trashed the spark . Nothing , I don’t list a one on the 60 it’s another number and just a fuse
Automotive Expert
Did you check for power going to pink wires? I'll find you a photo of relay. 60 in following diagram. - [https://www.dropbox.com/s/tybayh2lynkizr9/60.pdf?dl=0](https://www.dropbox.com/s/tybayh2lynkizr9/60.pdf?dl=0)

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