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OBS Enthusiast
Good morning Everyone,
I posted a couple of days ago about my 1988 C1500 TBI not running well after replacing the intake manifold gaskets, distributor and a bunch of other stuff. It ended up being a unplugged spark plug wire (happens to the best of us).
The truck still doesn’t run “right”. It idles weird and stalls sometimes. I’m really at a loss on this. Here’s the breakdown of everything I’ve done so far:
Replaced the following:
Distributor, coil, plugs, wires, EGR valve, O2 sensor (single wire), coolant temp sensor.
I rebuilt the TBI a couple of months ago using AC Delco injectors and rebuilt kit. PVC valve and all vacuum hoses and lines.
I’ve also replaced the complete AC system, water pump, thermostat and housing, flushed the coolant multiple times, drive belt and belt tension and idle pulley.
I’ve also replaced the throttle and TV cables.
I love this truck. I use it for work everyday and I have taken great care of her. I’ve replaced all of the suspension components as well including the upper and lower control arm bushings. Truck rides great.
The exhaust is original and it’s pretty rough as you would imagine. It’s got some leaks In multiple areas. Next on my list is new exhaust manifolds, y pipe and exhaust.
I’m worried that the engine is just tired. It smokes a little when you first start it. Blue smoke so I figure it’s just the valve stem seals. Doesn’t smoke when you drive it. I’ve never had the heads off.
So here’s where I’m at; do I put the money into pulling the heads, doing a roller cam conversion and rebuild or upgrade the heads or do I just buy a ready to go longblock from Blueprint?
They have 350 engines specifically built as TBI truck replacements
I posted a couple of days ago about my 1988 C1500 TBI not running well after replacing the intake manifold gaskets, distributor and a bunch of other stuff. It ended up being a unplugged spark plug wire (happens to the best of us).
The truck still doesn’t run “right”. It idles weird and stalls sometimes. I’m really at a loss on this. Here’s the breakdown of everything I’ve done so far:
Replaced the following:
Distributor, coil, plugs, wires, EGR valve, O2 sensor (single wire), coolant temp sensor.
I rebuilt the TBI a couple of months ago using AC Delco injectors and rebuilt kit. PVC valve and all vacuum hoses and lines.
I’ve also replaced the complete AC system, water pump, thermostat and housing, flushed the coolant multiple times, drive belt and belt tension and idle pulley.
I’ve also replaced the throttle and TV cables.
I love this truck. I use it for work everyday and I have taken great care of her. I’ve replaced all of the suspension components as well including the upper and lower control arm bushings. Truck rides great.
The exhaust is original and it’s pretty rough as you would imagine. It’s got some leaks In multiple areas. Next on my list is new exhaust manifolds, y pipe and exhaust.
I’m worried that the engine is just tired. It smokes a little when you first start it. Blue smoke so I figure it’s just the valve stem seals. Doesn’t smoke when you drive it. I’ve never had the heads off.
So here’s where I’m at; do I put the money into pulling the heads, doing a roller cam conversion and rebuild or upgrade the heads or do I just buy a ready to go longblock from Blueprint?
They have 350 engines specifically built as TBI truck replacements