Zabo
Newbie
Really don't feel like TLDRing the thread but here's my dilemma.
Picked up a '95 Tahoe Blazer LT for next to nothing. Aside from a dying 10 bolt rear and a finicky 241C case, it's also got the TBI Chug-a-lug at idle. It's sat for the past year and prior to coming into my possession the gas was purged, a new fuel filter installed, injectors cleaned (twice by myself), Dizzy replaced, new wires, plugs, shocks were newer Rancho. For an LT Trim it was in damn good shape for 235K miles.
I've replaced the O2 sensor (first idea) and also had a local hotrod wiring shop take a look at it (they own several T-400s so it's not foreign territory). Wiring came back good, no codes either. The O2 sensor solved a cold surging idle and stalling issue but for some odd reason the engine still chugs (won't stall) when idling in gear through a parking lot. Blip the gas (pedal is stiff) and 15mph+ the truck runs totally normal. I'm also getting oil pressure dips into the 20-15psi range but the truck has plenty of oil and there's no knocking or pinging.
I've narrowed it down to sensors now but I'm at a loss still.
Picked up a '95 Tahoe Blazer LT for next to nothing. Aside from a dying 10 bolt rear and a finicky 241C case, it's also got the TBI Chug-a-lug at idle. It's sat for the past year and prior to coming into my possession the gas was purged, a new fuel filter installed, injectors cleaned (twice by myself), Dizzy replaced, new wires, plugs, shocks were newer Rancho. For an LT Trim it was in damn good shape for 235K miles.
I've replaced the O2 sensor (first idea) and also had a local hotrod wiring shop take a look at it (they own several T-400s so it's not foreign territory). Wiring came back good, no codes either. The O2 sensor solved a cold surging idle and stalling issue but for some odd reason the engine still chugs (won't stall) when idling in gear through a parking lot. Blip the gas (pedal is stiff) and 15mph+ the truck runs totally normal. I'm also getting oil pressure dips into the 20-15psi range but the truck has plenty of oil and there's no knocking or pinging.
I've narrowed it down to sensors now but I'm at a loss still.