Engine stumble & pop - The 1947 - Present Chevrolet & GMC Truck Message Board Network

cst69 · 09-07-2011, 11:55 AM

Ok, just got this 92 ext. cab shortie. 350 tbi w/ 700R4 tranny. I am trying to diagnois a problem with the engine and need some advice. Engine runs great at idle and at low RPM's. When you get it under a load or step on the gas it stumbles/almost cuts off/pops thru tbi. I have installed new plugs, rotor button, wires, dist. cap to no advail. Next, I will replace the fuel filter. It smokes also. I am afraid it is on it's last leg and will need the engine replaced. Any ideas I can try?

09-07-2011, 11:55 AM	#1
cst69 Hollywood Join Date: Sep 2006 Location: Asheboro, N.C. Posts: 266	Engine stumble & pop Ok, just got this 92 ext. cab shortie. 350 tbi w/ 700R4 tranny. I am trying to diagnois a problem with the engine and need some advice. Engine runs great at idle and at low RPM's. When you get it under a load or step on the gas it stumbles/almost cuts off/pops thru tbi. I have installed new plugs, rotor button, wires, dist. cap to no advail. Next, I will replace the fuel filter. It smokes also. I am afraid it is on it's last leg and will need the engine replaced. Any ideas I can try?



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