How about no spark or did you screw up the firing order when you replaced the plug wires? It is easy to do.Typically there are 2 things to get an engine to fire that's fuel and spark. other things will make it run bad but not even a short rumble when you use starting fluid, there is no ignition. Get a spark test tool from the auto parts store. Check the firing order and be sure your wires are in the correct order.
SOURCE: 1997 GMC K1500 4x4 5.7 ex.cab SFI injection system
Hey there boatright33,
A few things things immediately come to mind.
There may be a problem with the engine controller. You could check the
ODBII onboard diagnostics. Auto part stores will usually do this for
you at no cost.
When you pulled the ones that were/went bad, how did the filters look? Could there be particulate matter still in the tank causing them to fail.
I always put this one off until last. Check the injectors. Are they gummed up?
Let me know what you find out
Mike
SOURCE: 97 jimmy wont start
Check for a bad distributor cap and or rotor..........a bad cap and or rotor can caues firing (cross fire)across the terminals and introduce spark to the wrong cylinders at the wrong time.......
hope this helps.....good luck!
SOURCE: 1994 GMC Jimmy hard to start and runs rough when first started
i think if you checked the sparking plugs and map sensors then check your distributer its maybe not delivering the current nedded to perform the spark to some of the cylinders
SOURCE: 2001 yukon, new fuel pump not working
OMG! I googled my problem and your posting popped up and mine was the same to the T. I changed that fuse and it started and runs like new again!!! Yay! I know my fuel pump was out but was confused when I couldn't figure it out. These are amazing vehicles and I'm glad I own one.
SOURCE: 92 GMC Jimmy Replaced fuel pressure and fuel
if you say you replaced the fuel pressure ? "regulator or pump" that was not very clear as to which so i am guessing and the filter but have no fuel to the fuel bar valve either you have no power to the pump or a clogged fuel line or a blown fuse or a short in the power suppluy to the fuel pump if you turn the key to on position without cranking it do you hear a slight humming noise if so the fuel pump is working ..if you do now hear this chances are as i stated above
the use of a test light is required to check for power to the pump as wel do you smell any gas =fuel lines are rotted .let ne know what you discover and check all your fuses
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