1997 GMC Suburan not starting at all!!!

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Ok have this 97 k 1500 gmc suburban and i replaced the fuel pump and fuel pump relay and also the fuel filter. I'm not getting it to start at all and i don't know what else to do.... i think that there might be a blockage.... but i came on here for answers... can anybody help... please give me some good news please....
 
fooetr77 said:
:confused:

Ok have this 97 k 1500 gmc suburban and i replaced the fuel pump and fuel pump relay and also the fuel filter. I'm not getting it to start at all and i don't know what else to do.... i think that there might be a blockage.... but i came on here for answers... can anybody help... please give me some good news please....
Click to expand...

Check your ECM fuse, the fuel pump get's it power from the ECM and if there was a short from the old sending unit. It could have blown the ECM fuse, start with that and also the other thing that might be an issue would be your ignition system. Inspect your ignition system to make sure that you do have spark at your spark plugs. A bad ICM can cause a no start also.

Good luck and keep us posted, and almost forgot to mention to inspect the ground wire for the sending unit. Its separate from sending unit wire harness and a bad ground will cause you to have low fuel pressure. Remember you need 62-65 PSI of fuel pressure to start the engine. You can check the pressure at the shredder valve, and post back what pressure your getting. ;)
 
where is the ecm fuse?? is it in the engine compartment? or in the fuse box inside the truck? and what color is it? and number?
 
fooetr77 said:
where is the ecm fuse?? is it in the engine compartment? or in the fuse box inside the truck? and what color is it? and number?
Click to expand...

Fuse located at the end of the dash on the driver's side and the fusees are labeled on the back side of the fuse panel that you remove to get to the fuses.

Good luck and keep us posted. ;)
 
i will try that and get back to you right away thanks
 
Ok I have done all that you said. But it's not that it's not getting any fuel to the injector pump at all I think the injector pump isn't working at all cause mo fuel is coming out of the lines to the carb.... What do you think????? Anybody can help??? Please!!!!
 
No pressure fuel lines going into the carb. no flow of fuel at all..... but there is power the fuel pump what to do?????:confused:
what should i do? the injector pump???? does this model come with one??? cause i also looked at the carb and took off the big black square that sits behind the carb and i took my tester to it and turned the key on and got nothing... what does that mean???
 
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i just posted a new thread can anyone please email me and help me out with the no start??
 
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