Vapor Lock

[carmogida]

Recently bought an 89 K5 and while driving to the woods, at about 9000', laden down with camping gear and a trailer with an atv the engine just stalled going downhill. Wouldn't start again until the engine and carb cooled down. How can I prevent this in the future? The vehicle also seems to be power starved and has a hard time getting to 60 mph up a small incline, is there a different carb I should get? I can work on motors but I have a hard time troubleshooting them but fixing I can do. Any help would be great.

 

[Deuling]

That should have TBI on it. Do you have a pic of your carb setup?

 

[carmogida]

I'm not sure how to post a pic here yet but it is the stock engine. I verified that with same carb set up as stock.

 

[ktmoutfront]

That thing should be TBI. Vapor lock is usually not an issue.

 

[carmogida]

It is a tbi which is why I can't understand the vapor lock issue

 

[Deuling]

It is a tbi which is why I can't understand the vapor lock issue

Return line to the tank? Make sure it is functioning right.

 

[dyeager535]

It ain't vapor lock. Something else going on.

 

[carmogida]

I primed the carb while I was broke down and it started to turn over but once out of fuel it died. I took that for vapor lock since it has not done it to me since.

 

[Deuling]

A throttle body is not a carb. FYI.

 

[ktmoutfront]

Fuel filter change is next.

 

[carmogida]

A throttle body is not a carb. FYI.

Told you I'm no mechanic but I can change parts. I'm a airplane mechanic so the understanding is there. Still learning...thank you for the help. I'll pick up a fuel filter now and change it. Couldn't hurt and it is cheap.

 

[Deuling]

Fuel filter change is next.

Was going to say that. If not, trouble on angles could possibly be with a bad tank pick up.

 

[Deuling]

Told you I'm no mechanic but I can change parts. I'm a airplane mechanic so the understanding is there. Still learning...thank you for the help. I'll pick up a fuel filter now and change it. Couldn't hurt and it is cheap.

Wasn't trying to be a dick or anything. Just trying to give you the correct terminology.

 

[carmogida]

Wasn't trying to be a dick or anything. Just trying to give you the correct terminology.

I didn't take it that way. Sorry was making a joke about myself.

 

[jekquistk5]

Was going to say that. If not, trouble on angles could possibly be with a bad tank pick up.

This or I would bet the rubber hose inside the tank may have a small crack in it.

 

[Deuling]

This or I would bet the rubber hose inside the tank may have a small crack in it.

That is what I meant by that actually

 

[carmogida]

The previous owner said he had just had the tank replaced because of rust on the strap into the tank.

 

[ktmoutfront]

Get it fixed you can join us.

http://coloradok5.com/forums/showthread.php?t=317547

 

[Stomis]

My next guess would be the ignition module in the dizzy. Only other thing I can think of that would get hot and cut fuel.

 

[carmogida]

Get it fixed you can join us.

http://coloradok5.com/forums/showthread.php?t=317547

Won't happen this year but I would love to hit the trails again. I'm taking the blazer down to restore it this winter.