94 Jimmy stinks

[GuttaFixIt]

My 94 jimmy 4.3 vortec stinks like rotten eggs. I have replaced CO2 sensor, converter, and muffler. I have replaced the fuel injectors about 1 1/2 years ago. The truck starts fine and idols fine. It is using alot of fuel also. Any idea what else I could replace? Thanks

[mjohn]

Is it a W series...sounds like internal fuel lines...or fuel pressure regulator leaking...is the gas milage poor? How much did it cost to replace the fuel injectors? have you tried the fuel injector cleaner the GM makes...it is about $21. a bottle and should be ran thru once a year...I hope this helps...

[mjohn]

does it smell more like gunpowder...than rotten eggs?...

[GuttaFixIt]

The injectors cost about $275.00. I put the bottle of injector cleaner (GM) in about a year ago. I'm not sure if it smells like gunpowder. I'll put a bottle of injector cleaner in first then if it still stinks I'll take off the cover and look at the injectors and see if there leaking. Thanks mjohn

[mjohn]

Thanks then I am about right on price for the CPI unit I just ordered one to be delivered in 2 business days for 321.00 from rockauto.com they seem to be a good place to order from...but first I had to up my daily max on my devit card ...
Wish You Well... :o)

[GuttaFixIt]

mjohn you ask me if it smells like gunpowder and I took my truck for a ride today and it does smell like gunpowder. Really strong. Could it be something different from we talked about? Thanks

[mjohn]

sounds like a fuel pressure regulator leak...or internal fuel lines leaking...if you replace the CPI unit I am hoping it would last more than 1 1/2yrs...