87 Tbi sluggish sometimes? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Sparkplug79 · 12-15-2009, 01:24 PM

Ok knowing that the engine has 245k on it, i have a random issue.
Ok very randomly it will just start running crappy, but only under acceleration. But most of the time it runs strong with no issues. I have a new cap and rotor, plugs wires, fuel pressure reg, tps sensor, fuel filter, air filter, i cleaned the iac.

Im starting to think its a bad ground on something in the fuel system or possibly something to do with the timing?

silverbullet01 · 12-15-2009, 05:37 PM

did you try the 02 sensor?

12-15-2009, 01:24 PM	#1
Sparkplug79 Registered User Join Date: Apr 2009 Location: Pace,Florida Posts: 19	87 Tbi sluggish sometimes? Ok knowing that the engine has 245k on it, i have a random issue. Ok very randomly it will just start running crappy, but only under acceleration. But most of the time it runs strong with no issues. I have a new cap and rotor, plugs wires, fuel pressure reg, tps sensor, fuel filter, air filter, i cleaned the iac. Im starting to think its a bad ground on something in the fuel system or possibly something to do with the timing? __________________ 79 Custom deluxe 250/th350 LWB- SOLD 87 Silverado 350/700r4 SWB - Daily Driver 57 Vw Beetle Ragtop

12-15-2009, 05:37 PM	#2
silverbullet01 Registered User Join Date: Dec 2009 Location: Annapolis Royal Nova Scotia Posts: 56	Re: 87 Tbi sluggish sometimes? did you try the 02 sensor?



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