I have an 02 Sub 4x4 with 95K on the clock. It ran perfect not more than a month ago. It all started with a slight hesitation on heavy accelleration while house hunting. The hesitation eventually felt like a flooding carb. That same day, it progressively got worse to the point of not being able to maintain idle and eventually died. When it died, I turned the key on and off several times in an effort to see if the fuel pump sounded right, then it started. It idled fine and responded well to flooring the throttle while parked. I drove it about a block back to the house at a little more than idle. I didn't have time to mess with it with everything that was going on that day, so we hopped in the silverado and left.

I know fuel pumps can be intermittant, but they're usually connected with an odd noise. Any thoughts what this might be? Intermittant fuel pressure regulator? Anything else?

TIA

Sounds like a fuel presure regulator to me. They are known for going bad and yes they can be intermintant. At least on that vechile it is easy to get at. Hope this helps.

Fuel Filter? Has it ever been changed?

Fuel Filter? Has it ever been changed?


I wouldn't think a fuel filter would be intermittant.

I drove it yesterday quite a bit with NO symptoms of any kind.

I'll try the regulator. Thanks for the input guys.