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yet another SERIOUS idle/overheating problem

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  • yet another SERIOUS idle/overheating problem

    my car still idles at 2k in park,and drops in drive to 1500
    the other day i had a vacume line unhooked,i hooked it up and the car ran at 1000rpm's. Then i started it tonight and guess what? its at 2k....... before i plugged the vaccume line back in,it idled at about 3500,because it kept bouncing off the rev limter.

    well now i notice i have an overheating issue causing the front of the car to smoke, near the front exaust manifold. This starts about 30 seconds after cold starting the car. I Just did the timing on my car,and i did it by the book. Maybe i just need to bleed my cooling system??

    any suggestions guys?

    also i noticed that all my radiator hose's are pretty tight when the overheating starts,and one of the back coolent hose's gets hot as fuk. The lower part of the cam carrior also gets extremely hot,on the "Tabs" , the two flat peices facing downward.



    do i just need to bleed my coolent system?
    and what the hell is up with my idle?


    guys im POSITIVE i did my timing exact so im very certain its not the timing, But is there anyway it could jump time so quickly and this causing the overheating? Ive driven the car ZERO miles since the belt swap, And its been started 3-4 times for maybe 30 seconds or so with this overheating crap going on. This is NOT oil burning off the manifold or anything, The manifolds get very very very hot.

    my fans also do not switch on. but im not running car very long. like a minute MAX

  • #2
    also guys this car sat for 4 months without being ran, So maybe m t-stat decided to stick and shut close? /???

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    • #3
      Unless it has NO oil i dont belive its possible for the car to overheat in 30 sec. it sounds like you may have gotten something on the exhaust manifold and its just burning off. and even if your t-stat was stuck shut you would only notice when it got up to operating temp because it stays shut till then anyway. my car also gets quite hot in very short runs near the exhaust manifolds, i belive thats just the way it is. one way to tell if all your vacume lines are hooked up is to turn on your vents/blower in the car and try to change the blower settings (floor/defrost/blend) if it wont change where the air comes from that means there is still a vac line loose. check the lines that go to the canister under the driverside bumper. have you replaced the iac??? hope this helps.
      92 Lumina euro 3.4 DOHC 139,XXX miles

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      • #4
        replacing the IAC very soon

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        • #5
          Originally posted by birdman
          Unless it has NO oil i dont belive its possible for the car to overheat in 30 sec. it sounds like you may have gotten something on the exhaust manifold and its just burning off. and even if your t-stat was stuck shut you would only notice when it got up to operating temp because it stays shut till then anyway. my car also gets quite hot in very short runs near the exhaust manifolds, i belive thats just the way it is. one way to tell if all your vacume lines are hooked up is to turn on your vents/blower in the car and try to change the blower settings (floor/defrost/blend) if it wont change where the air comes from that means there is still a vac line loose. check the lines that go to the canister under the driverside bumper. have you replaced the iac??? hope this helps.

          thats what i figured, i just had something on my manifold. But this is not the case

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