1988 s10 not starting

[tk1251k]

Right after adding gas and getting onto interstate up to about 70 mph it just lost most of its power still run but mot much power. Got it off to the side of the busy highway. SO far changed the fuel filter no help. Getting gas runs briefly on idle then cuts off. We got to run about 20 mph to get off the highway by feathering the gas. Had it towed home last evening. Now the fun begins. All hoses seems ok but I need to check closer. Truck ran great up until that point. Has only 34,000 miles on it. Any suggestion tips or help appreciated. Thanks in advance.

[tk1251k]

I unlugged the water temp sensor the truck fires right up. Got a new sensor plugged it up the truck is same as before. Idles high but runs at least. I suppose ecm thinks is minus temps. Checked for vac leaks none that I can find.Out ideas at this point. I want my 72 truck back.

[tk1251k]

Anybody have any answers or is this a silent crowd? I hooked up test gauge just before fuel filter I get 0 tring to start the engine. I unplug the eater temp sensor still get 0 but the truck starts right up. Any ideas before I trash this heap.

[76C10Stepside]

Originally Posted by tk1251k

Anybody have any answers or is this a silent crowd? I hooked up test gauge just before fuel filter I get 0 tring to start the engine. I unplug the eater temp sensor still get 0 but the truck starts right up. Any ideas before I trash this heap.

Only just saw your post.

Which engine do you have? How many miles on the odometer?

If it was carbureted, you could easily test it with some fresh gas to see if the cause of your problem is tainted gas.