Question about Cars & Trucks
Fuel pressure is running at 50 psi, checked injectors electrical with noid light and have spark at all cylinders and replaced the plugs. I know that the pressure should be 35 psi. could the problem be the pressure regulator or the injectors? I find it hard to believe all injectors would quit at the same time. I did read that high fuel pressure could keep the injectors from working.
You may have max fuel pressure when the engine is not running because the pressure regulator( if its a vacuum regulator ) does not have vacuum until the engine is running (they increase fuel pressure as vacuum decreases) to answer the question the fuel pressure even at maximum will not keep the injectors from firing
Posted on Dec 11, 2012
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
SOURCE: 1999 Yukon cold start problems.
1999 Yukon Start Issue - I have replaced the octopuse, battery, fuel filter, fuel pump, still having problems starting in cold weather, sometimes after a heavy rain.
Posted on Dec 08, 2008
SOURCE: 1999 chevy blazer wont start
THE FUEL PUMP IS BAD.
if your losing fuel pressure after the pump runs the drain back valve in the pump has failed.
and i doubt that you are seeing enough fuel pressure to run a vortec engine.
low fuel pressure equals a non running vortec
Posted on Apr 11, 2009
Tips for a great answer:
Apr 27, 2014 | 1991 Jeep Cherokee Limited
Mar 06, 2014 | Ford Cars & Trucks
Feb 24, 2014 | 2001 Honda Civic
Apr 03, 2013 | Cars & Trucks
Sep 01, 2012 | 2005 Pontiac G6
Aug 07, 2012 | Cars & Trucks
Sep 20, 2009 | 2003 Nissan Altima
Oct 03, 2008 | 1992 Buick LeSabre
59 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: