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tim leatherman Posted on Mar 04, 2014
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1994 Geo Metro will not start

I have checked at the fuses and changed the coil ,pickup coil , cap & rotor and I am not getting fire to the plugs what can I try now

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  • Geo Master 20,706 Answers
  • Posted on Mar 05, 2014
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All spark plugs dead. and at the main coil?
in this case after fuse (test them , ones that look good can be bad)
these steps work or all EFI cars made.
first is the rotor spinning cranking, if not the cam belt snapped!
a 1 second check, do you try to run 60k mile belts 200k ?


  1. CEL lamp on? key on? no crank? y/n,, if no the ECU is dead. or lamp burned out, we fix this FIRST. for next tests.
  2. I insert the diagnostic jumper clip (paper clip)
  3. the CEL now flashes codes, write them all down.
  4. I then crank for 5 seconds. and release the key.
  5. The ECU then reports live codes. beyond above stored codes.
  6. The ECU is very good at finding bad crank or cam sensors dead or even missing pulses, 1 in 10 lost. trust it, on all cars ......
  7. if no sensor code errors or spark bad errors then do the next things.
  8. The ecu also reads back the Tacho signal and will report dead tacho, sig, the ECU creates this and is the COIL drive signal to the ignition coil via the IGNITOR device.
  9. If the ignitor dies, or the coil primary opens, (dead Ign.coil) then the ECU see this and gives you Spark fail codes, cranking only!
  10. if you get far with a dead ignition coil, the ignitor is bad or the coil assuming coil even has power 12vcd key on.
this is all in the FSM, if you read it.
as is the Ignitior tests, and the coil tests.
The FSM is an amazing thing if your read it.
buy one.

ECU = engine brain, or EFI brain
EFI = eletronic fuel injection
CEL is the check engine light also called SES or MIL.
your ECU is OBD1 and no scan tool works .
only the winky blinky light.

3 Related Answers

Anonymous

  • 4 Answers
  • Posted on Dec 16, 2008

SOURCE: 95 Geo metro will not crank no fire

take your timing cover off have a friend look to see if the belt is moving while you crank the engine i would say that the belt is broken

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Anonymous

  • 21 Answers
  • Posted on Jul 23, 2009

SOURCE: Blown coil fuse

IG fuse powers: daytime running lamps(DRL) module; transaxle control module; A/C amplifier; main, fuel pump, and radiator fan relays; alternator; heated oxygen sensor; ignition coil, ignition noise suppressor; sensing and diagnostic module(airbag); audio alarm module; and just about every gage and light in the instrument panel; so there are no usual suspects. The best you can do is try to rule out these components one by one. There is a breaker you can buy that plugs in the fuse hole, that way you can **** around with it without wasting three dozen fuses.

freetek

Steve Allison

  • 5569 Answers
  • Posted on Nov 26, 2009

SOURCE: 95 geo metro 3cyl. 1.0L no spark changed

Pull one or two sparkplugs and check them for moisture; not fuel, but for water beads.
I don't know how long your engine ran after losing coolant but there is a chance that you lost the head gasket and have gotten water into the cylinders.

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