rough idle and smell raw fuel

[priddy]

OK I am working on 2003 gmc 3500 lb7 had bad injectors replace all found passages side head bad replaced it and new injector cups and but it all back togather and now I have rough idle and and can smell raw fuel again it started when I took the truck on long test drive for about 30 mins is when this happen before it was fine I need some help could this be a bad fuel pressure sir or is there anything else to check thanks

 

[hondarider552]

Have you run the engine with the valve covers off at max rail pressure to see visually where it's leaking yet?

 

[priddy]

Yes and can't see anything leaking

 

[hondarider552]

IF you visually cant see it, may have a cracked injector body leaking fuel into the cylinders.

 

[hondarider552]

If the raw fuel smell started though from right after you started the truck, I'd be looking at a reassembly issue on the fuel return side of things.

 

[priddy]

Its all brand new injectors and new cups

 

[priddy]

It didn't start it until I took the truck on a 30 min drive because right after I got done it cranked just fine and ran just fine with no problem

 

[pizza pig]

Ill be the one to ask... where are the injectors from?

 

[1ATony]

welcome to the site

Tony :hello: