Troubleshoot cranking no start

[6716]

No, I don't have a scan tool until later today, but trying to get a start on the troubleshooting. Fortunately I can walk to work.

Truck quit running stopped in traffic. Seemed like a fuel issue, acted like I'd run out of fuel, and given the bad sending unit, that was possible.

Called a friend, got a gallon, still didn't start. Listened for fuel pump, didn't hear it.

Towed back to the place.

Replaced fuel pump. Heard it run.

Still no start.

Pulled the brake booster vacuum line, shot in some carb cleaner, it fired up and ran for 1/2 a second.

Friend suggests cam or crank sensor. Scan tool might tell me more.

THoughts?

 

[dfc739]

No, I don't have a scan tool until later today, but trying to get a start on the troubleshooting. Fortunately I can walk to work.

Truck quit running stopped in traffic. Seemed like a fuel issue, acted like I'd run out of fuel, and given the bad sending unit, that was possible.

Called a friend, got a gallon, still didn't start. Listened for fuel pump, didn't hear it.

Towed back to the place.

Replaced fuel pump. Heard it run.

Still no start.

Pulled the brake booster vacuum line, shot in some carb cleaner, it fired up and ran for 1/2 a second.

Friend suggests cam or crank sensor. Scan tool might tell me more.

THoughts?

You're already inclined toward the fuel issue. Did you put more than 1 small gallon in? That's a drop in the bucket for these tanks. You need to first answer whether any fuel is actually getting to the engine by smelling gas either on the spark plugs or from the exhaust. If you turn it over for a 5-10 seconds can you smell gas coming from the tailpipe (or on the sparkplugs)? You need not only fuel, but also the correct fuel pressure. Rent a fuel pressure gauge and check it. It could be something simple like the fuel pressure regulator is bad. Have you checked the fuses? When it easily ran on carb cleaner it looks like you're still not getting fuel to the engine. Does your truck have the inline fuel filter? I think it was deleted around 2004-2006 and replaced with the in-tank sock, but it's worth a shot.

I don't know how running out of gas could cause a cam or crank sensor to die. And was it throwing any engine codes before it died (SES/CEL illuminated)?

 

[6716]

Well .... there wasn't much fuel in the tank when we took it down.

I may have run out of gas as the initial problem. We just moved, and my miles have shifted from highway to city, so I'll bet I was off on my mileage calculation.

I suppose I can thrown more gas in.

Nope, no CEL before it stopped.

And now, with a cheap scan tool from Napa, no codes. Although the "EV" symbol is flashing on the tool.

How do I check fuel pressure? I suppose there's a thread somewhere on here.

No inline fuel filter I believe on the 2005.

Fuses is something I can check. Maybe there's still enough light yet tonight.

 

[6716]

Well, shit.

I just added more gas and we fired right up.

Not that I didn't need a new fuel pump with the sending unit shot and 200K on the original ready to fail at any moment.

 

[wesman43]

Well, shit.

I just added more gas and we fired right up.

Not that I didn't need a new fuel pump with the sending unit shot and 200K on the original ready to fail at any moment.

Story of my life right here