2001 Chevy Express QUIT RUNNING -- WON'T START

Tiny
ERIC1944
  • MEMBER
  • 2001 CHEVROLET EXPRESS
  • V8
  • 2WD
  • AUTOMATIC
  • 126,000 MILES
HELP !
MY EXPRESS 2500, 5.0, ACTED LIKE IT RAN OUT OF GAS. TOWED IT HOME. HAS 1/2 TANK OF FUEL.
NO PUMP RUNNING. NO PRESSURE AT RAIL.
ECM-B FUSE HAS POWER ON BOTH SIDES.
RELAY SWAPPED WITH STARTER. GREAT CRANK.
CHECKED PCM PLUGS, VERY CLEAN INSIDE.
BIG PLUG AT GAS TANK. POWER IN SMALL GREY AND PURPLE WIRES, ALSO FULL TIME POWER IN LARGE GREY WIRE.
WILL RUN WITH GAS SQUIRT IN INTAKE.
WILL CHECK THE OTHER CLUES FROM THE FORUMS.
JUST TRIED UNPLUGGING OPSU, ALSO GROUNDED IT. NO PUMP !
SECURITY SYSTEM?
GUYS, PLEASE HELP ME GO THE RIGHT DIRECTION.
THANKS, ERIC
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Tuesday, June 16th, 2009 AT 7:57 AM

10 Replies

Tiny
JACK42
  • MEMBER
Fuel pump. It is located inside thetank so you will have to drop it out of the van to replae it. If you use an A/C Delco (highly recommended) it will most likely come with aneew connector to wire into the van (no biggie, has instructions). I do also suggest replacing the fuel pump relay, they get strained when the pump is drawing more amperage when it is going out
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Tuesday, June 16th, 2009 AT 8:13 AM
Tiny
ERIC1944
  • MEMBER
THE PUMP FOR SURE?
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Tuesday, June 16th, 2009 AT 8:49 AM
Tiny
JACK42
  • MEMBER
99.9% of the time. GM pumps usually die around 100k. Find the fuel pump relay in the underhood fuse/relay center. Put your fingers on it and have some one crank the engine, it should click, if so bad pump
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Tuesday, June 16th, 2009 AT 9:45 AM
Tiny
ERIC1944
  • MEMBER
TANK IS OUT. PUMP IS OUT.
WILL GET AC/DELCO.
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Tuesday, June 16th, 2009 AT 12:24 PM
Tiny
JACK42
  • MEMBER
Good call. Dont forget the relay
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Tuesday, June 16th, 2009 AT 12:36 PM
Tiny
ERIC1944
  • MEMBER
PUT A NEW OEM PUMP MODULE INTO THE TANK,
HAD TO INSTALL NEW WIRES. NOT EASY GETTING
IT INTO THE TANK.
REPLACED TANK, ADDED FUEL. DID I MENTION THAT I HAD TO TAKE 25 GAL OUT TO DROP THAT TANK ?
FIRED RIGHT UP !
HAVEN'T DONE ALL THE LITTLE CRAP YET.
HAVE NEW RELAYS FOR THE PUMP AND CRANK,
WILL INSTALL THEM TOO.
THANKS JACKSON !
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Tuesday, June 16th, 2009 AT 7:32 PM
Tiny
JACK42
  • MEMBER
You did all the work, but your welcome. Glad you are back on ther oad
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Wednesday, June 17th, 2009 AT 12:20 AM
Tiny
ERIC1944
  • MEMBER
TWO TIMES IT HAS NOT STARTED.
JUST CRANKS.
WILL CHECK FOR FUEL AT RAIL.
ANY IDEAS?
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Saturday, June 27th, 2009 AT 12:40 PM
Tiny
ERIC1944
  • MEMBER
NO FUEL AT RAIL.
GAS GUAGE ERRATIC.
UNPLUGGED THE BIG PLUG AT TANK,
CHECKED IT FOR CURRENT.
SEEMED RIGHT.
PLUGGED IT TOGETHER, TURNED SWITCH TO
ON POSITION, HEARD THE PUMP WORK FOR TWO SEC. KNEW IT WOULD START. IT DID !

?
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Saturday, June 27th, 2009 AT 2:00 PM
Tiny
ERIC1944
  • MEMBER
STOPPED RUNNING 4 OR 5 TIMES YESTERDAY.
GAS GUAGE QUITS.
IF I UNPLUG THE LARGE CONNECTOR AND THEN PLUG IT BACK IN, IT WILL START AGAIN.
WHAT ELSE CAN IT BE?
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+1
Thursday, July 2nd, 2009 AT 7:11 AM

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