Interesting problem

TYHOGG

TYHOGG

Active member
So i've had a on going issue with my truck stalling at random. I first thought it was my msd box, i disconnected and bypassed it and still got the stalling issue. Tried the fuel rail test port after it died and there was no pressure at all. I dropped the tank today and found the line that runs from the pumps to the output tube on the hanger had blown a huge hole in it. Replaced the hose with some of the high pressure stuff that has the blue inner liner, hope this holds up better. Drove the truck a good half hour today and didn't try and stall once. Anyone else haave this issue?
 
TYHOGG

TYHOGG

Active member
Re: Interesting problem

It was new hose, I put a single walbro in a while ago, then took it back out and added another.
 
SY2932

SY2932

Administrator
Re: Interesting problem

Check out this thread here. The short answer is if you didn't use fuel line that meets the SAE J30R10 spec, you will have to drop the tank again eventually...
 
TYHOGG

TYHOGG

Active member
Re: Interesting problem

Well I spoke to soon. Stalled twice, not sure why. Not showing any flags in tuner pro when it happen. Triple checked and fuel supply and pressure is good. It only seems to happen when im off throttle decelerating. looking into ingition system and tune to see whats going on.
 
TYHOGG

TYHOGG

Active member
Re: Interesting problem

No vac leak, although I am looking at the iac, and tps sensors. Noticed a high steep count while the truck is running.
 
MRKING

MRKING

New Parts for Old Trucks
Re: Interesting problem

When your in decel and it stalls , is it on the lower end of the rpm scale ? This is like when you pull up to a stop sign or literally when you first start letting off ? Possibly throw some more timing in it down low if it's when your coming to a stop ?

My truck used to stall out sometimes after a little driving and the engine was warmed up . It wouldn't do it when the engine was cold at all . Drive a little and it would start acting up .
 
TYHOGG

TYHOGG

Active member
Re: Interesting problem

It is the low end of the rpms, almost right before I come to a stop right around idle rpm.

Ill try adding some timing, thanks.
 
MRKING

MRKING

New Parts for Old Trucks
Re: Interesting problem

If you have a log to view , watch the bubble right as its stalling and see if there is a large difference between it and the surrounding cells .
 
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