Back again, engine cutting out

[trackfiend]

Hey guys I've got a 92 Ext. Cab GMC 5.7 TBI. A few months ago it quit on me adn it ended up being the distributor was the problem. Anyway while working on it I replaced the distributor, coil, ecu and the truck ran great. The problem I have now is really driving me up the wall. When the truck sits it fires right up and runs great. After running for a while it starts cutting out and dies. It's getting fuel and has spark. I am at a total loss since I can't figure out what it is. Any help will be greatly appreciated.

 

[Swaggerwagon]

Have you checked fuel pressure?

 

[trackfiend]

Fuel pressure is good. You can run the truck around for a little while and it runs fine. Then all of a sudden it will start to cut out and then die. If you let it sit for an hour it will fire up and run fine for a little while again. I am at a total loss as it doesn't throw a check engine light either.

 

[94blu1500]

have you changed the plugs and wires lately?

 

[trackfiend]

Plugs are new but the wires are not. I didn't think they would cause it to do tht.

 

[94blu1500]

after the truck cuts off do you have fuel & fire

 

[trackfiend]

The injectors are firing when it starts cutting out, as far as spark goes I haven't put anything inline on one of the wires to see if it stops firing. I know when I was checking the timing I could hear the distributor firing.

 

[trackfiend]

Fixed the truck today. My wife got me a 2010 Silverado Crew Cab and it runs awesome!

 

[Swaggerwagon]

Enjoy that payment............

 

[Bigg G]

LOL.......I was reading and thought he found the fix not found a new truck w/ payments.

Happy Motoring !!!!!