No Love!

K

killerrudy

New member
So I am on my way to work yesterday. Only about 2 miles from my house cruising along at about 45 and I feel my truck start to slow down! I am like what the hell! So I hit the gas harder, but still nothing. So I look down and see the truck barely struggling to hold 1k rpms. Then it dies. So I drift to the side of the road. Try to start it and just hits a couple times and chokes and dies. Hold the gas pedal down halfway and it will try to run but sounds like it is running only on 2, maybe 3 cylinders. Just put a brand new cap and button on a month ago as well. I have such a headache!
 
Don W.

Don W.

Stab it and steer it
Re: No Love!

Gas? Jump the fuel pump (empty term near dist) and you should hear fuel flowing through the fuel manifold. Check ign by placing a spark plug in the coil wire and cranking. From what you say it sounds like you ran out of gas so I'd suspect the fuel pump. :2cents:
 
K

killerrudy

New member
Re: No Love!

I figured plugged fuel filter, so picked up one and put it on. Half tank of gas. Loads of fuel pressure. (checked when had fuel filter off) and when I put on the new filter it started right up. Went out this afternoon and is doing the same thing. So fuel is out. Going to check the plugs tomorrow. Just hate how hard they are to get to.
 
ViciousV6

ViciousV6

400HP/550FTLB
Re: No Love!

killerrudy said:
I figured plugged fuel filter, so picked up one and put it on. Half tank of gas. Loads of fuel pressure. (checked when had fuel filter off) and when I put on the new filter it started right up. Went out this afternoon and is doing the same thing. So fuel is out. Going to check the plugs tomorrow. Just hate how hard they are to get to.
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Could you blow through the filter. If it was hard. All it takes is a partially clogged filter for couple weeks to hurt the fuel pump. I just had similar issue with my silverado.

Filter was clogged but it was too late. Need fuel press gauge to tell the real story.

Could be losing pressure under acceleration.

Ralph

Could be bad coil but they just go usually.
 
K

killerrudy

New member
Re: No Love!

I replaced the filter. And turned on the fuel pump with the filter off the line. Couldn't hold the line pressure with my finger. So figured pump is good. I will check the coil though in the morning
 
sly dvl

sly dvl

Ya, it's got a Turbo
Re: No Love!

Ya, but it fired right up after you put the new filter on, so you probably had good pressure then (since the pump had cooled off) but it dies warm. Do yourself a favour and put a gauge on it when it dies. What you're describing is classic fuel pump failure. You're not going to be able to tell the difference between 40 PSI and 50 PSI with your thumb.
It takes a lot less time to put a pressure gauge on then it does to check the plugs...
 
sly dvl

sly dvl

Ya, it's got a Turbo
Re: No Love!

Don W. said:
Ing module failing when it gets hot??
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Possible, but ign. modules usually fail completely (the truck just dies). Because it slowed down and had no power, and then restarted and stalled it points more towards a fuelling issue, not a "no spark" issue.
 
Don W.

Don W.

Stab it and steer it
Re: No Love!

sly dvl said:
Possible, but ign. modules usually fail completely (the truck just dies). Because it slowed down and had no power, and then restarted and stalled it points more towards a fuelling issue, not a "no spark" issue.
Click to expand...

I would tend to agree but he says that he's checked that. So what's next? Maybe a faulty FPR not holding fuel pressure? I looked back and he says he checked FP with filter off and by holding with a finger. Well 30#, enough to run on, is way beyond what you can hold with a finger so I think FP needs to be checked with a gauge. After all that I agree, make sure fuel is good before going further.
 
K

killerrudy

New member
Re: No Love!

Since it was kinda nice enough to go for a bike ride today inbetween the rain showers. I took off for the afternoon. Came back, turn the key and she fired right up. Rev'ed it twice and let ldle for about 30 seconds and then she died. She shut off like I turned the key. Smooth, no shuttering or choking. Smoothly. Then she went back to not wanting to start. So definitly not enough time for the pump to get warm. Never missed onces. So figured not spark. So unless the pump is just being sparatic as heLL, I hate my life! Just kidding! Just hate it when things are not consistent!
 
G

gmcturbo

Active member
Re: No Love!

the tests you are doing are wasting your time. get some real test equipment hooked up and we can help you. and to the guy saying ignition modules just fail you are wrong. they like to die intermittantly too.
 
sly dvl

sly dvl

Ya, it's got a Turbo
Re: No Love!

gmcturbo said:
the tests you are doing are wasting your time. get some real test equipment hooked up and we can help you. and to the guy saying ignition modules just fail you are wrong. they like to die intermittantly too.
Click to expand...
I think you mis-interpreted my post. What I said was an Ign. module isn't likely to give you a loss of power and/or cause the truck to slow down. They usually just quit causing the truck to die instantly. Sure, they'll fire up again once they've cooled down but as soon as they warm again, they quit.
This doesn't fit his secnario since he stated "The truck was slowing down".
Agreed, do a proper fuel pressure test first - it's one of the easiest tests to do and usually the most conclusive.

"The Guy" aka Kevin :D
 
M

MyNewSy005

New member
Re: No Love!

Hello,

Was investigating my own issues when I came across something in the factory repair manual:

Under the EGR Valve

"RESULTS OF INCORRECT OPERATION"
- Engine stops after cold start
-Engine stops at idle after deceleration
-Vehicle surges during cruse
-Rough idle

I am total noobie so this may be way off base but the top two symptoms sound like what you may have.

Good luck,

paul
 
K

killerrudy

New member
Re: No Love!

Well, it finally threw a code for me. I went out and started it and bingo! It said three things. MAF low signal, Knock Sensor no signal, and high system voltage. This is the first that I have seen any codes so I ordered a new maf. Hopefully get it tomorrow. I figured that the knock sensor is just pissed because of how the maf is making it run. Don't know about the high system voltage yet.
 
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