Question about 1999 Chevrolet Astro
WHEN COLD/WET WEATHER VAN WONT START. ELECTRIC FUEL PUMP TURNS ON BUT SOUNDS LIKE NOT GETTING GAS. CAP AND ROTOR REPLACED SINCE TOLD MOISTURE IN IT. TRIED STARTING QUITE A BIT AND DRAINED BATTERY. RECHARGED BATTERY AND STILL SOUNDS LIKE GAS NOT GETTING TO ENGINE. THIS HAPPENS EVEN WHILE PARKED IN THE GARAGE
: Sounds like you have
attacked the problem pretty well. Check the fuses. Do a
"pin" check for power and ground to the ECM. When you
replaced the ECM, did you use a new prom? If not, you
could have a faulty prom. Check fuel pressure and using
a Noid light check the pulse at the injectors. For your
information, the injectors will have 12-volts and the
computer momentarily grounds them to open the injector.
Your problems may be caused by a faulty ignition switch or starter solenoid.
Intermittent electrical problems are difficult to trace. We would suggest first checking the ignition switch and next the neutral safety switch
You are close to the right track but check the fuel pressure during the no start condition as you may have a faulty fuel pump. You also could have a vehicle speed sensor problem
Posted on Dec 15, 2008
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Posted on Jan 02, 2017
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