Question about 1990 Chevrolet Cavalier

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I over heated my chevy 2.2 motor the i thought i blow a head casket but i found the rear heater hose was bad i replaced it now its back firing throw the carb i have been working on cars all my life what do i do to fix this .........

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Check your intake manifold gasket as it may have over heated as well; check the gasket between the mainfold gasket and carb/throttle body as it's a fuel injected unit?

Posted on May 31, 2010

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Hi: Well when it was over Heating before you shut it off, It could be possible that it jumped the timing .Or if it was Real HOT I've had a Man that had a Similar Problem ,and when it was over Heating the water was just going every where, Well with His I found that i guess when the water go on the Distributor Cap it put a Vertical Crack in it, And that was causing his Back Firing. Not saying thats what wrong with yours.Could you have maybe accindently knock a Spark Plug Wire or 2 Off? Or Have you Checked your Air Filter to see if it was Watered down when the Hose Blew,Hey I'm Just Giving You some Ideas on Possible Problems. Crank it at Night time also and let it run if it will and take a look under your hood at ALL areas in Your Engine Compartment to See if you notice any Arching.Please let me know if any of this Helped By Voting at 1st on my Level of Assistance and send a Meesage to me on FIXYA. Good Luck my Friend; From The WYOCWBOY

Posted on May 31, 2010

Testimonial: "i just want to say thanx you where very helpful i will check the things you pointed out for my car......... thank you ..d.c "

  • ddc61 May 31, 2010

    where is the timeing chain at in this 2.2 motor sir and now its not fireing at all it just turns over it was running when i got it home i let cool down and tring to make repairs iam disabled and most fix it itrs my only car please me if u can i can do the work and i have all the tools



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