truck running wierd

[nitrosteve]

i was running my truck today and it was running rich and all of the sudden it leaned out into a nice tune up by itself. it had a light blue smoke . My problem is the rpms jumped up higher and it got hot but it was still smoking.


thanks from steve

 

[olds97_lss]

What's the truck? The savage with the stock tank is known for leaning out when the tank drops below 1/2 full.

 

[nitrosteve]

its a himoto viper xst but iv never had this problem until today. iv had this truck for two years.

 

[olds97_lss]

May want to check your lines for splits/holes and tank for cracks. Could be a few things... but sounds like an air leak somewhere. Or the engine is worn out.

 

[nitrosteve]

it moght be the back pressure line . a while ago the lint rubed on the spur gear an thined it out it might have finnaly split