96 blazer just sut down while driving and now wont start crank sensor good spider injector good battery good
Nov 5, 2011 at 12:29 PM
Would Ground From Gas Schute Keep 96 Blazer from starting
RALDON
- MEMBER
- 2 POSTS
Check the fuel pressure with a gauge if its within specs -start here
Nov 5, 2011 at 12:34 PM
fuel pressure good spark good so would the ground from gas schute keep 96 blazer from starting
Nov 5, 2011 at 12:43 PM
Do below
Get a helper disconnect a sparkplug wire or 2 and ground it to the engine atleast 3/16 away from ground-have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel related problem, Do you hear the fuel pump come On when you turn key on? If not check fuel pump fuse and fuel pump relay if okay-check the fuel pressure to rule out the fuel filter/fuel pump/pressure regulator and listen to the injector/s are they pulsing or hook up a noid light. No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil packs,coil's resistances,cap and rotor,distributor pick-up coil, ignition control module, cam and crank sensors and computer Note: If it doesn't apply disregard it and keep testing
If both fuel and spark is present-check the valve and ignition timing, this will lead you to problems
with compression and valves opening and closing at the wrong time/broken or jumped timing
belt/chain.
Get a helper disconnect a sparkplug wire or 2 and ground it to the engine atleast 3/16 away from ground-have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel related problem, Do you hear the fuel pump come On when you turn key on? If not check fuel pump fuse and fuel pump relay if okay-check the fuel pressure to rule out the fuel filter/fuel pump/pressure regulator and listen to the injector/s are they pulsing or hook up a noid light. No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil packs,coil's resistances,cap and rotor,distributor pick-up coil, ignition control module, cam and crank sensors and computer Note: If it doesn't apply disregard it and keep testing
If both fuel and spark is present-check the valve and ignition timing, this will lead you to problems
with compression and valves opening and closing at the wrong time/broken or jumped timing
belt/chain.
Nov 5, 2011 at 2:44 PM
Rasmataz is correct, but before you go through all of that, disconnect the Mass Air Flow sensor, and see if it starts. I've seen this happen on vehicles many times before, so if it does, it just saved you hours of diagnosis time.
Nov 21, 2011 at 7:44 AM