Even more problems with the 1990 K5 now after taking it for a short ride about 4 1/2 hours ago, the truck will keep cranking but it wont turn over. I have no idea what could've happened. I literally let it sit for 4 hours and I come back to a truck that won't start up. I looked under the truck near the gas tank and noticed there are hoses that are cut. One is on the rear differential and the other looks like it's going to the gas tank and the third one goes below the body mounts and is clipped together along with a bunch of other hoses. I'm pretty much screwed so now, so I really need some help.
http://img689.imageshack.us/img689/6...0509174933.jpg
http://img22.imageshack.us/img22/200...0509174928.jpg
http://img98.imageshack.us/img98/400...0509191621.jpg

 

Have you checked for spark? Remove a plug wire from the spark plug and hold it to the block and have somebody crank the engine. See if there is spark.
What about fuel to the tbi? ahve you looked into the tbi while cranking to see if fuel is being delivered?

 

I was thinking the spark plugs were the cause of this. This is going to sound extremely stupid to you but I'm still learning, where would I look to see if there is fuel being delivered to the TBI?

 

Remove the air cleaner. That is where the TBI is located.
No worries. If you don't ask you won't know. Nothing wrong with learning.

 

I took off the air filter and I was told By one of my friends to pour in a little gasoline And see if it starts. I have two questions: where do I pour the fuel and how much to pour?

 

The blazer is back up and running, I poured some gas into the tbi and its running good now.

 

when you take the cover off for the air filter you see 2 injectors, have your friend crank the truck and you should see them mist down into the throttle body. hopefully what you did fixed the problem but in the future you know how to check if you are getting fuel.

 

Yeah I fixed the problem, I started her up at 3:30 and it was running fine, took it for a ride.

 

hmmm im confused, you poured gas into the TBI and its running now? why wouldnt it start without putting the gas into the TBI? thats a mystery there... unless fuel pump lost its prime or something. any other details we might be missing from this?

Ck1500

 

Nope, all I did was just pour a bit of gas into the TBI and it runs fine now. I made a video about 3 hours ago:
http://www.youtube.com/watch?v=PcuhUxf9is4

No details that I left out either.