My 97 GMC K1500 -Z71- pickup truck has the 5.7L V8 and has been progressively difficult starting to the point I now have to spray starter fluid on the air filter to get it to actually run...otherwise it only turns over and over like it hasn't got any fuel. However, once its running I can drive it without any notice of any problems - never getting any check engine light error codes. I've tested its fuel pressure and it doesn't remain constant after the engine has been shut off with a noticeable bleed off after only 5 minutes or so. But it does rise again to the sprecifications shown its supposed to have once I turn on the ignition without actually cranking it over.
So, do I have possibly a malfunctioning fuel regulator / intake manifold gasket leak, or should I go directly to changing out the fuel pump assembly in the gas tank which is supposedly exactly what a dealer tech said to me is what's usually found wrong when a GMC vehicle has a bleedoff of fuel pressure?
So, do I have possibly a malfunctioning fuel regulator / intake manifold gasket leak, or should I go directly to changing out the fuel pump assembly in the gas tank which is supposedly exactly what a dealer tech said to me is what's usually found wrong when a GMC vehicle has a bleedoff of fuel pressure?
Sep 24, 2009 at 7:38 PM
