Question about Cars & Trucks
So i tested the tps for voltage it sits @ 9.48 volts and drops to 0 volts when throttling. Is that normal?? While i was testing i kept hearing a clicking noise like a bad solenoid. so i traced it to the fuel system in the engine bay. The fuel pump relay is new and i still have the old one. But as this "solenoid" clicks the fuel pump corresponds with the clicking. not sure where to find this "solenoid." Any Ideas??? I was told that it could have a fuel pressure regulator valve or a fuel pressure solenoid. If so where is it located?? and do you have a part number??
Posted by Anonymous on
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Posted on Jan 02, 2017
SOURCE: 1999 chevy blazer fuel problem
probably not fuel filter . probably going to have to remove the upper intake and replace the fuel injector spider(fuel inj assebly) if it is droping fuel pressure it is leaking into the upper manifold
Posted on Nov 30, 2008
Your ECU is what acctivates your fuel pump realy. Put the key on the run possition and pull the ecu fuse for a few seconds and reinstall it ans it should accivate your realy for 5 seconds, Good luck.
Posted on Apr 06, 2009
could be a bad earth or [ground]
the power wire ma be brocken or have a loose or dirty connection
you neeed to trace it along its lenght to determine the fault!
so start at the pump & work back
Posted on Jul 20, 2009
Are you sure the spark is sufficient? I have seen weak coils cause your problem also bad coil wires loosing to much voltage to the distributor.
Posted on Oct 24, 2009
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