1993 Geo Prizm exaust sucks & carb blows

1993 GEO PRIZM
143,000 MILES • 4 CYL • 2WD • MANUAL
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ZUKI35
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  • 4 POSTS
My 1993 GEO Prizm which has had a crank no start problem for a while I just noticed that exaust sucks & carb blows I don't know what could be causing this but i'm pretty sure thats why is not starting. any suggestions about what could be causing this wierd exaust sucks & carb blows problem???
Jun 23, 2010 at 3:22 PM
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DOCFIXIT
  • ASE Certified Mechanic
  • 18,828 POSTS
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Hi
Sounds like an exhaust valve and an intake valve stuck open. pull plugs check compression. did this occur sudendly?
Let me know
Thanks for donate
Jun 23, 2010 at 3:53 PM
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ZUKI35
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I think I have a cheapy compression tester around here somewhere but I can say that it did happen suddenly and it cranks super easy likethere's no compression since it happened. thanks
Jun 23, 2010 at 6:01 PM
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MMPRINCE4000
  • ASE Certified Mechanic
  • 8,548 POSTS
  • ASE Certified Mechanic
When is the last time you changed the timing belt?
Jun 24, 2010 at 8:12 AM
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