Engine repair

Tiny
CAL_OWENS09
  • MEMBER
  • 1994 SUBARU LEGACY
  • 4 CYL
  • AWD
  • AUTOMATIC
  • 65,000 MILES
I Have a 1994 subaru legacy wagon. I replaced the engine on it and now its not starting. Its not firing What do I do?
Sunday, January 30th, 2011 AT 5:32 AM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
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.
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Sunday, January 30th, 2011 AT 9:52 AM

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