New to forum- trouble shooting no start
Thread Starter
|
Member
Joined: Oct 2018
Posts: 5
Likes: 0
From: Austin
New to forum- trouble shooting no start
Hi All!
Like so many people I'm here to help diagnose a no start issue. I'll do a search function and go from there.
Basically, engine turns over but doesn't start. Battery is charged (overnight) and there's fuel in the truck.
Thanks in advance guys.
Frank
Like so many people I'm here to help diagnose a no start issue. I'll do a search function and go from there.
Basically, engine turns over but doesn't start. Battery is charged (overnight) and there's fuel in the truck.
Thanks in advance guys.
Frank
Level III Supporter
Joined: Nov 2011
Posts: 1,352
Likes: 3
Welcome to R-F!
You're either not getting fuel or you're not getting spark. I'd start with checking the fuel pressure. Turn the key to the on position but don't turn the engine over. Listen for the buzz from the fuel pump. If you get the buzz, use a fuel pressure gauge to check the pressure. I dont know what the ideal pressure is off the top of my head. RonD would. If the pressure is good, start looking into spark related components.
You're either not getting fuel or you're not getting spark. I'd start with checking the fuel pressure. Turn the key to the on position but don't turn the engine over. Listen for the buzz from the fuel pump. If you get the buzz, use a fuel pressure gauge to check the pressure. I dont know what the ideal pressure is off the top of my head. RonD would. If the pressure is good, start looking into spark related components.
Member
Joined: Jul 2016
Posts: 2,023
Likes: 44
From: BC Canada
OP has a 2002 3 litre, so fuel pressure would be at 60/65 psi.
Should be at, at least 50 psi for it to run properly.
Do Ron's 50/50 test.
Spray a little starting fluid in the throttle body while cranking, if it tries to start, then you have a fuel problem, if it doesn't, then look for ignition problems.
Should be at, at least 50 psi for it to run properly.
Do Ron's 50/50 test.
Spray a little starting fluid in the throttle body while cranking, if it tries to start, then you have a fuel problem, if it doesn't, then look for ignition problems.
Thread Starter
|
Member
Joined: Oct 2018
Posts: 5
Likes: 0
From: Austin
Cool. I'll do that.
Just to learn a little more about trouble shooting, can anyone direct me to a wiring diagram so I can figure out how to do a voltage drop test on the fuel pump? I come up empty on google searches. I know the 50/50 test will give me an answer, but I think this would be useful for other problems as well.
Just to learn a little more about trouble shooting, can anyone direct me to a wiring diagram so I can figure out how to do a voltage drop test on the fuel pump? I come up empty on google searches. I know the 50/50 test will give me an answer, but I think this would be useful for other problems as well.
Member
Joined: Jul 2016
Posts: 2,023
Likes: 44
From: BC Canada
Replace the fuel filter first before assuming it's the pump.
You can also get a fairly inexpensive fuel pressure tester and measure it at the Schrader valve on the fuel rail.
Should be at around 60 to 65 psi.
An older pump will still put out 50 to 55 psi.
How many miles on your truck, most pumps last around 250k sometimes more ?
And as Green Ranger asked, are you able to hear the fuel pump when you turn the key on ?
Turn the key on and off 5 times, this cycles the pump for a few seconds each time.
On the 6th try, see if the truck starts.
If it starts and dies, then it would be a safe bet it's the pump.
You can also get a fairly inexpensive fuel pressure tester and measure it at the Schrader valve on the fuel rail.
Should be at around 60 to 65 psi.
An older pump will still put out 50 to 55 psi.
How many miles on your truck, most pumps last around 250k sometimes more ?
And as Green Ranger asked, are you able to hear the fuel pump when you turn the key on ?
Turn the key on and off 5 times, this cycles the pump for a few seconds each time.
On the 6th try, see if the truck starts.
If it starts and dies, then it would be a safe bet it's the pump.
Thread Starter
|
Member
Joined: Oct 2018
Posts: 5
Likes: 0
From: Austin
Long story short, I replaced the fuel pump assembly and it now runs.
Sorry I didn’t answer about whether or not I could hear the fuel pump. I tried what he suggested, and couldn’t here it running.
I did a tune up and replaced the fuel pump a few months back. The truck has 184k miles on it.
Couple of things to mention. Pulling the bed is easier than I thought. I’m going to Ford tomorrow to by fuel like snap rings as I broke the old ones taking them off. Putting the new one in was a sinch once I realized it was spring loaded and needed to be compressed.
Lastly, has anyone else taken the bed off their truck and thought it looked way cooler that way? First thing my girlfriend said when she saw it was that it looked kinda sexy in a redneck kinda way.
Sorry I didn’t answer about whether or not I could hear the fuel pump. I tried what he suggested, and couldn’t here it running.
I did a tune up and replaced the fuel pump a few months back. The truck has 184k miles on it.
Couple of things to mention. Pulling the bed is easier than I thought. I’m going to Ford tomorrow to by fuel like snap rings as I broke the old ones taking them off. Putting the new one in was a sinch once I realized it was spring loaded and needed to be compressed.
Lastly, has anyone else taken the bed off their truck and thought it looked way cooler that way? First thing my girlfriend said when she saw it was that it looked kinda sexy in a redneck kinda way.
Thread
Thread Starter
Forum
Replies
Last Post
jrandallc
2.9L & 3.0L V6 Tech
2
Aug 10, 2018 09:43 AM
