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diagman
diagman, ASE Certified Technician
Category: Chevy
Satisfied Customers: 679
Experience:  17 YEAR MASTERTECH
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1999 chevy blazer: module crank sensor..wont start..new plugs

Customer Question

1999 chevy blazer 4.3 vortec got a problem starting i replaced the module crank sensor distrutor pickup now i got spark still would not start change fuel spider and fuel pump still wont start now i change the computer still would not start could i get some help please to tell me what i am missing and also new plugs
Submitted: 8 years ago.
Category: Chevy
Expert:  diagman replied 8 years ago.
WHAT IS THE FUEL PRESSURE AND DOES THE FUEL PRESSURE HOLD OR BLEED OFF? HAVE YOU CHECKED COMPRESSION ON THE VEHICLE? DO YOU HAVE A SECURITY LIGHT ON? WHEN YOU CHANGED THE COMPUTER DID YOU HAVE THE NEW ONE REPROGRAMMED PRIOR TO INSTALLTION OR AFTER INSTALATION COMPUTER MUST BE REPROGRAMMED FOR VEHICLE
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Customer: replied 8 years ago.
the pressure is 60pounds    the computer was from another working blazer
Expert:  diagman replied 8 years ago.
do you have spark at the plugs or just at the coil? is it constant or intermittant spark    they do have a common problem with the distributor gear stripping and not allowing the vehicle to start you will have to remove distributor for inspection and if it is stripped you will have to replace distributor they also have alot of problems with the ignition switch going bad not powering everything up properly creating a no start very very common
Customer: replied 8 years ago.
how would i know when its bad [ignition switch]