Hello,

I have a 93 s10 blazer vin code W. I recently have been smelling gas coming from under the hood. No visual leaks. Then today I drove 40 miles than turned it off and it would not start again. I waited a while and it started up and ran for 30 miles than died again. I put a fuel pressure gauge on it and it went to 60psi then when it would dye it dropped to 40 then 30 and died and the pump was howling. I replaced the CPI 40k miles ago and the fuel pump and filter just 4K miles ago.
Could the pump be going bad again?
I pulled the plenum it looks clean besides the carbon and gold ish color.
Could I have a fuel pressure regulator going bad?
Any help would be great!

 

What brand did you replace the pump with? If it was an airtex there is a good chance it went bad on you. Or like you said, the regulator.

 

That is funny you said that. I just got done reading a post on Airtex pumps. And yes it was.

I also did a pressure check on the regulator it it leaks from 60psi to 40 psi in about 30min. I was thinking that is pretty good.

Your opinion?

 

Those sound like good numbers for the regulator. Sounds like you got screwed by airtex, like so many other people. How are they still in business? Lol

 

Well thanks again. I will have to do some research to find a better pump this round.. LOL

 

No prob, I know its tempting to go with a cheaper brand but you really can't beat delco or delphi in these trucks. Learned that the hardway lol. Look at rockauto.com for the best prices I know of.

 

Just a follow up. New Delphi pump installed yesterday and I believe the smell of gas under the hood was a vacuum line on the back of the manifold that had cracked and fell off. So far everything seems to be running good!!!!!

 

+1 on airtex pumps needing to be replaced. Mine lasted about 9 months before it failed, replaced with a Delphi after that....

Glad you got it back up and running!