Question about 1994 Chevrolet Suburban
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Posted on Jan 02, 2017
the reason your truck is shutting off is because one of your o2 censors is bad. had the same problem even got a diagnostic done ans showed no error.finally went to advance auto and asked someone who had the same problem. hope is works out
Posted on Feb 07, 2009
I had the same problem with mine. I installed a fuel pressure gauge, and drove around until the problem started. The truck should be running between 48 to 56 lbs. of fuel pressure. Mine ran at idle at 42lbs. , not even high enough. Drove it for about 20 minutes, and it started to stumble. Fuel pressure dropped to 30lbs, 20 lbs - then all the way down to 2lbs. I shut it off, and it would not start back up. 30 seconds later, I turned the key and it came up to 10lbs. press. 10 more seconds 20lbs. After almost a minute, it came up to 42 lbs. started and I drove away. I replaced the fuel pump assemb. on 7/3/2008. Drove it around,and the problem is gone. Mine is a flex fuel, and the pump retails for $668.00. I did find a AC Delco pump for $221.00. I hope this helps.
Posted on Jul 04, 2009
either you have a fuel pump that went out, or your fuel pump relay went. These fuel pumps last around 100,000 miles, so if you're way under that, it's more than likely the relay, if you're close to that, it could be either.
Posted on Jun 14, 2010
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