Question about 2002 Chevrolet Suburban 2500
99 gmc suburban with 71000- engine just died. now wont start-have spark, have fuel (fuel pump comes on, filled a bottle with fuel) Did intake about a month ago. has had a crank timing sensor code. was going to take it to dealer, this week never made it. just drove it on along trip no problems. replaced crank sensor no change.
should i just take it in scared of price of trouble shooting
You probably aleady solved it by now but there is a good chance that your fuel pump is shot. It requires apx 55psi to operate. It will still let fuel go but if it drops below around 50psi the vehicle will just shut off. If you do replace the fuel pump the best way to do it is to remove the drivers side bed bolts and loosen the passenger side bolts almost all the way. Disconnect the filler tube then raise the bed and you can access the pump from there without dropping the tank. Ensure that you put a block or something between the bed and the frame rails so it doesn't drop on you.
The fuel pressure check valve is on the right side of the intake towards the fire wall.
These fuel pumps go out all of the time and can even cause your fuel tank to implode, I had it happen to me.
Hope this helps you or someone else with the same problem
Posted on Apr 19, 2009
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Posted on Jan 02, 2017
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