2007 Chevy tahoe not starting

[LegoSharks]

Hello all, yesterday my 2007 Chevy Tahoe was working fine, went to start it today and voila, it doesn't start. If by any chance one of yall can tell the issue off the engine sound I have link to a video. Secondly while trying to figure out the potential issue I found these wires taped under the bottom by the pedals (see image attached). Now these could have been like this since the car was made but I want to make sure my car wasn't broken into or something and that these cut wires are my issue.



video link:

 

[LegoSharks]

Little update of what I've gone and tested so far.
-Fuel pump fuses,fuel pump primer: all good (did the whole little test thing with the primer of putting your ear to the open gas cap and listening to see if there's a hum when the car is attempted to be started)
-air filter: all good
-battery: going to get that checked soon however when attempting to start car isn't turning over but lights in the car and dash work fine.

 

[Fless]

Test the fuel pressure at the passenger rail using a fuel pressure test kit that you can rent from a local auto parts store.

The bundle of 4 wires under the dash is the accommodation for a trailer brake controller.

 

[LegoSharks]

Small update:
Havent gotten around to testing fuel pressure as I brought the battery out to get tested/recharged, which, as of now I have found out wasn't the issue. While at my local AutoZone, however they said it could potentially be the starter motor, although I'm unsure of that as the belt turns when I attempt to start the car. Another question is, can the EVAP system for the fuel cause an issue like this? I ask as I've had issues with the evap system in the past and I wanted to make sure that that system isn't it.

 

[Doubeleive]

Small update:
Havent gotten around to testing fuel pressure as I brought the battery out to get tested/recharged, which, as of now I have found out wasn't the issue. While at my local AutoZone, however they said it could potentially be the starter motor, although I'm unsure of that as the belt turns when I attempt to start the car. Another question is, can the EVAP system for the fuel cause an issue like this? I ask as I've had issues with the evap system in the past and I wanted to make sure that that system isn't it.

it's not your starter, you need to do a fuel pressure test, just because the pump makes noise doesn't mean anything.
you can do a really simple test with no tool by activating (pressing the tip of the schrader valve in) on the fuel rail to see if it sprays fuel out. or best thing to do is buy a cheap fuel pressure tester harbor freight has them for about $30
you should see 50-65+ psi with KEY ON

 

[Geotrash]

Small update:
Havent gotten around to testing fuel pressure as I brought the battery out to get tested/recharged, which, as of now I have found out wasn't the issue. While at my local AutoZone, however they said it could potentially be the starter motor, although I'm unsure of that as the belt turns when I attempt to start the car. Another question is, can the EVAP system for the fuel cause an issue like this? I ask as I've had issues with the evap system in the past and I wanted to make sure that that system isn't it.

My money is on the fuel pump/fuel pump relay. But as Wes and others have said, you need to get a pressure gauge on that fuel rail. I can't think of any evap system failure mode that would lead to a no-start like this.

Definitely not the battery or starter - that thing is turning over plenty fast to start up. You're missing either fuel or spark, and I'm betting on the fuel, knowing what I do about these.

 

[Doubeleive]

did you figure it out?

 

[LegoSharks]

Yep replaced the fuel pump and cars starting now, though unfortunately I now have to contend with this which I think is the radiator busting a leak as I doubt that its the windshield wiper fluid spraying not that I would know as both fluids are orange for me. Frankly if any you guys know if the carhas the engine oil cooler part by default that would be appreciated as if I have to order a new radiator all of them are either are for or not for a car with it.

 

[Charlie207]

Yep replaced the fuel pump and cars starting now, though unfortunately I now have to contend with this which I think is the radiator busting a leak as I doubt that its the windshield wiper fluid spraying not that I would know as both fluids are orange for me. Frankly if any you guys know if the carhas the engine oil cooler part by default that would be appreciated as if I have to order a new radiator all of them are either are for or not for a car with it.View attachment 460192

Well... does it smell sweet? Washer fluid doesn't.

 

[LegoSharks]

Yea its probably coolant then,which sucks all things considered. Now I just need to figure out if the car came with an oil cooler by default so I can order the right radiator.