Engine stalls on steep hill > 1/2 tank gas - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 04-29-2008, 06:39 PM   #1
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Default Engine stalls on steep hill > 1/2 tank gas

93 bonnie 118000 miles. An odd problem - if I allow my fuel level to be anything less than about 1/2 full and come to a stop heading down a hill or stop heading up a hill or a sharp fast right or left turn on level ground the engine will stall unless I throw it into neutral and play with the gas. If its half full or better I do not experience these issue. The fuel gauge is reading the level correctly. I've changed the fuel filter. Is there a turnover sensor or a fuel pressure problem that may be cauing this issue?

Any thoughts?


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Old 04-29-2008, 06:48 PM   #2
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I'd be looking in the tank at either a loose/misplaced fuel strainer or broken baffles. 92 had an undersized fuel strainer that caused similar problems, but I'm pretty sure it was fixed by 93.
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Old 04-29-2008, 08:07 PM   #3
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Quote:
Originally Posted by Sandrock
Your tank is failing.

92/93 tanks have a poor baffle design. Over time, the baffles disintegrate...hence the problem you are having under acceleration and cornering, since the pump isn't picking anything up at that time.

I replaced mine with a 95 tank and the issue went away. Something you might want to look into if you are going to drop the tank anyways.

This is a PM from Sandrock that we were discussing my 93 with some similar problems.
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Old 04-29-2008, 08:36 PM   #4
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Default stalling on slope

thanks for the info guys - I'll drop my tank this weekend and take a look
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Old 04-30-2008, 12:37 PM   #5
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Had a similar problem on my '93 SSE. Yes, the baffle was broken. I drilled some holes in the baffle to allow the chamber around the fuel pickup to refill. Additionally, I replaced the sock filter on the pickup. I suspect the problem was more due to the partially clogged sock than the baffle. Make sure you take a good look at that filter screen - if it has the slightest hint of crap on it, replace it.
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