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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: Jakethesnake73 on September 26, 2015, 07:29:21 PM

Title: Stalling issue in 350 tbi
Post by: Jakethesnake73 on September 26, 2015, 07:29:21 PM

I madr a trip up i70 earlier this year and at my exit had a stalling issue that was just like vapor locking. The longer i waited to start the longer i could drive. Most of my driving is just around town. Today i drove about 9 miles and stalled in the turn lane right before where i was going thank fully. Cranked for a while and finally started just to stall again while waiting for traffic so i could turn.
Im thinking its
Fuel pump, kinked line somewhere, or the fuel filter. Thoughts?


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Title: Re: Stalling issue in 350 tbi
Post by: Irish_Alley on September 26, 2015, 10:53:14 PM

well i hope this helps you out
http://forum.73-87chevytrucks.com/smforum/index.php?topic=29996.0
02 sensor and tps can cause stalling.
any check engine light?
i would also check for spark and do you hear the fuel pump prim and run?

Title: Re: Stalling issue in 350 tbi
Post by: bd on September 26, 2015, 11:06:10 PM

Remove the fuel tank cap and test drive the truck.  If the symptoms persist try replacing the fuel filter.  If they still persist, check the fuel pressure.

Title: Re: Stalling issue in 350 tbi
Post by: Jakethesnake73 on September 27, 2015, 07:30:33 PM

Quote from: Irish_Alley on September 26, 2015, 10:53:14 PM

well i hope this helps you out
http://forum.73-87chevytrucks.com/smforum/index.php?topic=29996.0
02 sensor and tps can cause stalling.
any check engine light?
i would also check for spark and do you hear the fuel pump prim and run?

i can hear the fuel pump prime when i turn the key on. I have never been able to hear it while driving. My o2 sensors would bring a check engine light every once in a while and it read code 44 i think. It was for lean oxygen. I havent had the check engine light turn on since i cut the cats off. Just driving around town i have the issue now. Its a lot like vapor locking. I know that i have a slightly kinked line at the gas tank. Today it started as stalling at lights and now i cant get anywhere without stopping for a while.


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Title: Re: Stalling issue in 350 tbi
Post by: jaredts on September 27, 2015, 09:14:28 PM

Follow BD's advice.  Or you could jump right to the fuel pressure check and eliminate several things at once.

Title: Re: Stalling issue in 350 tbi
Post by: Jakethesnake73 on September 28, 2015, 01:30:27 AM

Quote from: bd on September 26, 2015, 11:06:10 PM

Remove the fuel tank cap and test drive the truck.  If the symptoms persist try replacing the fuel filter.  If they still persist, check the fuel pressure.

pulled the cap today and continued to stall. I will try a new filter andcheck the pressure when i get a chance


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Title: Re: Stalling issue in 350 tbi
Post by: Jakethesnake73 on September 30, 2015, 11:36:24 AM

I put my cats back on and it seems to work now


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